/* Generated by Cython 3.0.3 */

/* BEGIN: Cython Metadata
{
    "distutils": {
        "depends": [],
        "extra_compile_args": [
            "-O2"
        ],
        "include_dirs": [
            ""
        ],
        "name": "wildboar.tree._ctree",
        "sources": [
            "src/wildboar/tree/_ctree.pyx"
        ]
    },
    "module_name": "wildboar.tree._ctree"
}
END: Cython Metadata */

#ifndef PY_SSIZE_T_CLEAN
#define PY_SSIZE_T_CLEAN
#endif /* PY_SSIZE_T_CLEAN */
#if defined(CYTHON_LIMITED_API) && 0
  #ifndef Py_LIMITED_API
    #if CYTHON_LIMITED_API+0 > 0x03030000
      #define Py_LIMITED_API CYTHON_LIMITED_API
    #else
      #define Py_LIMITED_API 0x03030000
    #endif
  #endif
#endif

#include "Python.h"
#ifndef Py_PYTHON_H
    #error Python headers needed to compile C extensions, please install development version of Python.
#elif PY_VERSION_HEX < 0x02070000 || (0x03000000 <= PY_VERSION_HEX && PY_VERSION_HEX < 0x03030000)
    #error Cython requires Python 2.7+ or Python 3.3+.
#else
#if CYTHON_LIMITED_API
#define __PYX_EXTRA_ABI_MODULE_NAME "limited"
#else
#define __PYX_EXTRA_ABI_MODULE_NAME ""
#endif
#define CYTHON_ABI "3_0_3" __PYX_EXTRA_ABI_MODULE_NAME
#define __PYX_ABI_MODULE_NAME "_cython_" CYTHON_ABI
#define __PYX_TYPE_MODULE_PREFIX __PYX_ABI_MODULE_NAME "."
#define CYTHON_HEX_VERSION 0x030003F0
#define CYTHON_FUTURE_DIVISION 1
#include <stddef.h>
#ifndef offsetof
  #define offsetof(type, member) ( (size_t) & ((type*)0) -> member )
#endif
#if !defined(_WIN32) && !defined(WIN32) && !defined(MS_WINDOWS)
  #ifndef __stdcall
    #define __stdcall
  #endif
  #ifndef __cdecl
    #define __cdecl
  #endif
  #ifndef __fastcall
    #define __fastcall
  #endif
#endif
#ifndef DL_IMPORT
  #define DL_IMPORT(t) t
#endif
#ifndef DL_EXPORT
  #define DL_EXPORT(t) t
#endif
#define __PYX_COMMA ,
#ifndef HAVE_LONG_LONG
  #define HAVE_LONG_LONG
#endif
#ifndef PY_LONG_LONG
  #define PY_LONG_LONG LONG_LONG
#endif
#ifndef Py_HUGE_VAL
  #define Py_HUGE_VAL HUGE_VAL
#endif
#define __PYX_LIMITED_VERSION_HEX PY_VERSION_HEX
#if defined(GRAALVM_PYTHON)
  /* For very preliminary testing purposes. Most variables are set the same as PyPy.
     The existence of this section does not imply that anything works or is even tested */
  #define CYTHON_COMPILING_IN_PYPY 0
  #define CYTHON_COMPILING_IN_CPYTHON 0
  #define CYTHON_COMPILING_IN_LIMITED_API 0
  #define CYTHON_COMPILING_IN_GRAAL 1
  #define CYTHON_COMPILING_IN_NOGIL 0
  #undef CYTHON_USE_TYPE_SLOTS
  #define CYTHON_USE_TYPE_SLOTS 0
  #undef CYTHON_USE_TYPE_SPECS
  #define CYTHON_USE_TYPE_SPECS 0
  #undef CYTHON_USE_PYTYPE_LOOKUP
  #define CYTHON_USE_PYTYPE_LOOKUP 0
  #if PY_VERSION_HEX < 0x03050000
    #undef CYTHON_USE_ASYNC_SLOTS
    #define CYTHON_USE_ASYNC_SLOTS 0
  #elif !defined(CYTHON_USE_ASYNC_SLOTS)
    #define CYTHON_USE_ASYNC_SLOTS 1
  #endif
  #undef CYTHON_USE_PYLIST_INTERNALS
  #define CYTHON_USE_PYLIST_INTERNALS 0
  #undef CYTHON_USE_UNICODE_INTERNALS
  #define CYTHON_USE_UNICODE_INTERNALS 0
  #undef CYTHON_USE_UNICODE_WRITER
  #define CYTHON_USE_UNICODE_WRITER 0
  #undef CYTHON_USE_PYLONG_INTERNALS
  #define CYTHON_USE_PYLONG_INTERNALS 0
  #undef CYTHON_AVOID_BORROWED_REFS
  #define CYTHON_AVOID_BORROWED_REFS 1
  #undef CYTHON_ASSUME_SAFE_MACROS
  #define CYTHON_ASSUME_SAFE_MACROS 0
  #undef CYTHON_UNPACK_METHODS
  #define CYTHON_UNPACK_METHODS 0
  #undef CYTHON_FAST_THREAD_STATE
  #define CYTHON_FAST_THREAD_STATE 0
  #undef CYTHON_FAST_GIL
  #define CYTHON_FAST_GIL 0
  #undef CYTHON_METH_FASTCALL
  #define CYTHON_METH_FASTCALL 0
  #undef CYTHON_FAST_PYCALL
  #define CYTHON_FAST_PYCALL 0
  #ifndef CYTHON_PEP487_INIT_SUBCLASS
    #define CYTHON_PEP487_INIT_SUBCLASS (PY_MAJOR_VERSION >= 3)
  #endif
  #undef CYTHON_PEP489_MULTI_PHASE_INIT
  #define CYTHON_PEP489_MULTI_PHASE_INIT 1
  #undef CYTHON_USE_MODULE_STATE
  #define CYTHON_USE_MODULE_STATE 0
  #undef CYTHON_USE_TP_FINALIZE
  #define CYTHON_USE_TP_FINALIZE 0
  #undef CYTHON_USE_DICT_VERSIONS
  #define CYTHON_USE_DICT_VERSIONS 0
  #undef CYTHON_USE_EXC_INFO_STACK
  #define CYTHON_USE_EXC_INFO_STACK 0
  #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
    #define CYTHON_UPDATE_DESCRIPTOR_DOC 0
  #endif
#elif defined(PYPY_VERSION)
  #define CYTHON_COMPILING_IN_PYPY 1
  #define CYTHON_COMPILING_IN_CPYTHON 0
  #define CYTHON_COMPILING_IN_LIMITED_API 0
  #define CYTHON_COMPILING_IN_GRAAL 0
  #define CYTHON_COMPILING_IN_NOGIL 0
  #undef CYTHON_USE_TYPE_SLOTS
  #define CYTHON_USE_TYPE_SLOTS 0
  #ifndef CYTHON_USE_TYPE_SPECS
    #define CYTHON_USE_TYPE_SPECS 0
  #endif
  #undef CYTHON_USE_PYTYPE_LOOKUP
  #define CYTHON_USE_PYTYPE_LOOKUP 0
  #if PY_VERSION_HEX < 0x03050000
    #undef CYTHON_USE_ASYNC_SLOTS
    #define CYTHON_USE_ASYNC_SLOTS 0
  #elif !defined(CYTHON_USE_ASYNC_SLOTS)
    #define CYTHON_USE_ASYNC_SLOTS 1
  #endif
  #undef CYTHON_USE_PYLIST_INTERNALS
  #define CYTHON_USE_PYLIST_INTERNALS 0
  #undef CYTHON_USE_UNICODE_INTERNALS
  #define CYTHON_USE_UNICODE_INTERNALS 0
  #undef CYTHON_USE_UNICODE_WRITER
  #define CYTHON_USE_UNICODE_WRITER 0
  #undef CYTHON_USE_PYLONG_INTERNALS
  #define CYTHON_USE_PYLONG_INTERNALS 0
  #undef CYTHON_AVOID_BORROWED_REFS
  #define CYTHON_AVOID_BORROWED_REFS 1
  #undef CYTHON_ASSUME_SAFE_MACROS
  #define CYTHON_ASSUME_SAFE_MACROS 0
  #undef CYTHON_UNPACK_METHODS
  #define CYTHON_UNPACK_METHODS 0
  #undef CYTHON_FAST_THREAD_STATE
  #define CYTHON_FAST_THREAD_STATE 0
  #undef CYTHON_FAST_GIL
  #define CYTHON_FAST_GIL 0
  #undef CYTHON_METH_FASTCALL
  #define CYTHON_METH_FASTCALL 0
  #undef CYTHON_FAST_PYCALL
  #define CYTHON_FAST_PYCALL 0
  #ifndef CYTHON_PEP487_INIT_SUBCLASS
    #define CYTHON_PEP487_INIT_SUBCLASS (PY_MAJOR_VERSION >= 3)
  #endif
  #if PY_VERSION_HEX < 0x03090000
    #undef CYTHON_PEP489_MULTI_PHASE_INIT
    #define CYTHON_PEP489_MULTI_PHASE_INIT 0
  #elif !defined(CYTHON_PEP489_MULTI_PHASE_INIT)
    #define CYTHON_PEP489_MULTI_PHASE_INIT 1
  #endif
  #undef CYTHON_USE_MODULE_STATE
  #define CYTHON_USE_MODULE_STATE 0
  #undef CYTHON_USE_TP_FINALIZE
  #define CYTHON_USE_TP_FINALIZE (PY_VERSION_HEX >= 0x030400a1 && PYPY_VERSION_NUM >= 0x07030C00)
  #undef CYTHON_USE_DICT_VERSIONS
  #define CYTHON_USE_DICT_VERSIONS 0
  #undef CYTHON_USE_EXC_INFO_STACK
  #define CYTHON_USE_EXC_INFO_STACK 0
  #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
    #define CYTHON_UPDATE_DESCRIPTOR_DOC 0
  #endif
#elif defined(CYTHON_LIMITED_API)
  #ifdef Py_LIMITED_API
    #undef __PYX_LIMITED_VERSION_HEX
    #define __PYX_LIMITED_VERSION_HEX Py_LIMITED_API
  #endif
  #define CYTHON_COMPILING_IN_PYPY 0
  #define CYTHON_COMPILING_IN_CPYTHON 0
  #define CYTHON_COMPILING_IN_LIMITED_API 1
  #define CYTHON_COMPILING_IN_GRAAL 0
  #define CYTHON_COMPILING_IN_NOGIL 0
  #undef CYTHON_CLINE_IN_TRACEBACK
  #define CYTHON_CLINE_IN_TRACEBACK 0
  #undef CYTHON_USE_TYPE_SLOTS
  #define CYTHON_USE_TYPE_SLOTS 0
  #undef CYTHON_USE_TYPE_SPECS
  #define CYTHON_USE_TYPE_SPECS 1
  #undef CYTHON_USE_PYTYPE_LOOKUP
  #define CYTHON_USE_PYTYPE_LOOKUP 0
  #undef CYTHON_USE_ASYNC_SLOTS
  #define CYTHON_USE_ASYNC_SLOTS 0
  #undef CYTHON_USE_PYLIST_INTERNALS
  #define CYTHON_USE_PYLIST_INTERNALS 0
  #undef CYTHON_USE_UNICODE_INTERNALS
  #define CYTHON_USE_UNICODE_INTERNALS 0
  #ifndef CYTHON_USE_UNICODE_WRITER
    #define CYTHON_USE_UNICODE_WRITER 0
  #endif
  #undef CYTHON_USE_PYLONG_INTERNALS
  #define CYTHON_USE_PYLONG_INTERNALS 0
  #ifndef CYTHON_AVOID_BORROWED_REFS
    #define CYTHON_AVOID_BORROWED_REFS 0
  #endif
  #undef CYTHON_ASSUME_SAFE_MACROS
  #define CYTHON_ASSUME_SAFE_MACROS 0
  #undef CYTHON_UNPACK_METHODS
  #define CYTHON_UNPACK_METHODS 0
  #undef CYTHON_FAST_THREAD_STATE
  #define CYTHON_FAST_THREAD_STATE 0
  #undef CYTHON_FAST_GIL
  #define CYTHON_FAST_GIL 0
  #undef CYTHON_METH_FASTCALL
  #define CYTHON_METH_FASTCALL 0
  #undef CYTHON_FAST_PYCALL
  #define CYTHON_FAST_PYCALL 0
  #ifndef CYTHON_PEP487_INIT_SUBCLASS
    #define CYTHON_PEP487_INIT_SUBCLASS 1
  #endif
  #undef CYTHON_PEP489_MULTI_PHASE_INIT
  #define CYTHON_PEP489_MULTI_PHASE_INIT 0
  #undef CYTHON_USE_MODULE_STATE
  #define CYTHON_USE_MODULE_STATE 1
  #ifndef CYTHON_USE_TP_FINALIZE
    #define CYTHON_USE_TP_FINALIZE 0
  #endif
  #undef CYTHON_USE_DICT_VERSIONS
  #define CYTHON_USE_DICT_VERSIONS 0
  #undef CYTHON_USE_EXC_INFO_STACK
  #define CYTHON_USE_EXC_INFO_STACK 0
  #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
    #define CYTHON_UPDATE_DESCRIPTOR_DOC 0
  #endif
#elif defined(PY_NOGIL)
  #define CYTHON_COMPILING_IN_PYPY 0
  #define CYTHON_COMPILING_IN_CPYTHON 0
  #define CYTHON_COMPILING_IN_LIMITED_API 0
  #define CYTHON_COMPILING_IN_GRAAL 0
  #define CYTHON_COMPILING_IN_NOGIL 1
  #ifndef CYTHON_USE_TYPE_SLOTS
    #define CYTHON_USE_TYPE_SLOTS 1
  #endif
  #undef CYTHON_USE_PYTYPE_LOOKUP
  #define CYTHON_USE_PYTYPE_LOOKUP 0
  #ifndef CYTHON_USE_ASYNC_SLOTS
    #define CYTHON_USE_ASYNC_SLOTS 1
  #endif
  #undef CYTHON_USE_PYLIST_INTERNALS
  #define CYTHON_USE_PYLIST_INTERNALS 0
  #ifndef CYTHON_USE_UNICODE_INTERNALS
    #define CYTHON_USE_UNICODE_INTERNALS 1
  #endif
  #undef CYTHON_USE_UNICODE_WRITER
  #define CYTHON_USE_UNICODE_WRITER 0
  #undef CYTHON_USE_PYLONG_INTERNALS
  #define CYTHON_USE_PYLONG_INTERNALS 0
  #ifndef CYTHON_AVOID_BORROWED_REFS
    #define CYTHON_AVOID_BORROWED_REFS 0
  #endif
  #ifndef CYTHON_ASSUME_SAFE_MACROS
    #define CYTHON_ASSUME_SAFE_MACROS 1
  #endif
  #ifndef CYTHON_UNPACK_METHODS
    #define CYTHON_UNPACK_METHODS 1
  #endif
  #undef CYTHON_FAST_THREAD_STATE
  #define CYTHON_FAST_THREAD_STATE 0
  #undef CYTHON_FAST_PYCALL
  #define CYTHON_FAST_PYCALL 0
  #ifndef CYTHON_PEP489_MULTI_PHASE_INIT
    #define CYTHON_PEP489_MULTI_PHASE_INIT 1
  #endif
  #ifndef CYTHON_USE_TP_FINALIZE
    #define CYTHON_USE_TP_FINALIZE 1
  #endif
  #undef CYTHON_USE_DICT_VERSIONS
  #define CYTHON_USE_DICT_VERSIONS 0
  #undef CYTHON_USE_EXC_INFO_STACK
  #define CYTHON_USE_EXC_INFO_STACK 0
#else
  #define CYTHON_COMPILING_IN_PYPY 0
  #define CYTHON_COMPILING_IN_CPYTHON 1
  #define CYTHON_COMPILING_IN_LIMITED_API 0
  #define CYTHON_COMPILING_IN_GRAAL 0
  #define CYTHON_COMPILING_IN_NOGIL 0
  #ifndef CYTHON_USE_TYPE_SLOTS
    #define CYTHON_USE_TYPE_SLOTS 1
  #endif
  #ifndef CYTHON_USE_TYPE_SPECS
    #define CYTHON_USE_TYPE_SPECS 0
  #endif
  #ifndef CYTHON_USE_PYTYPE_LOOKUP
    #define CYTHON_USE_PYTYPE_LOOKUP 1
  #endif
  #if PY_MAJOR_VERSION < 3
    #undef CYTHON_USE_ASYNC_SLOTS
    #define CYTHON_USE_ASYNC_SLOTS 0
  #elif !defined(CYTHON_USE_ASYNC_SLOTS)
    #define CYTHON_USE_ASYNC_SLOTS 1
  #endif
  #ifndef CYTHON_USE_PYLONG_INTERNALS
    #define CYTHON_USE_PYLONG_INTERNALS 1
  #endif
  #ifndef CYTHON_USE_PYLIST_INTERNALS
    #define CYTHON_USE_PYLIST_INTERNALS 1
  #endif
  #ifndef CYTHON_USE_UNICODE_INTERNALS
    #define CYTHON_USE_UNICODE_INTERNALS 1
  #endif
  #if PY_VERSION_HEX < 0x030300F0 || PY_VERSION_HEX >= 0x030B00A2
    #undef CYTHON_USE_UNICODE_WRITER
    #define CYTHON_USE_UNICODE_WRITER 0
  #elif !defined(CYTHON_USE_UNICODE_WRITER)
    #define CYTHON_USE_UNICODE_WRITER 1
  #endif
  #ifndef CYTHON_AVOID_BORROWED_REFS
    #define CYTHON_AVOID_BORROWED_REFS 0
  #endif
  #ifndef CYTHON_ASSUME_SAFE_MACROS
    #define CYTHON_ASSUME_SAFE_MACROS 1
  #endif
  #ifndef CYTHON_UNPACK_METHODS
    #define CYTHON_UNPACK_METHODS 1
  #endif
  #ifndef CYTHON_FAST_THREAD_STATE
    #define CYTHON_FAST_THREAD_STATE 1
  #endif
  #ifndef CYTHON_FAST_GIL
    #define CYTHON_FAST_GIL (PY_MAJOR_VERSION < 3 || PY_VERSION_HEX >= 0x03060000 && PY_VERSION_HEX < 0x030C00A6)
  #endif
  #ifndef CYTHON_METH_FASTCALL
    #define CYTHON_METH_FASTCALL (PY_VERSION_HEX >= 0x030700A1)
  #endif
  #ifndef CYTHON_FAST_PYCALL
    #define CYTHON_FAST_PYCALL 1
  #endif
  #ifndef CYTHON_PEP487_INIT_SUBCLASS
    #define CYTHON_PEP487_INIT_SUBCLASS 1
  #endif
  #if PY_VERSION_HEX < 0x03050000
    #undef CYTHON_PEP489_MULTI_PHASE_INIT
    #define CYTHON_PEP489_MULTI_PHASE_INIT 0
  #elif !defined(CYTHON_PEP489_MULTI_PHASE_INIT)
    #define CYTHON_PEP489_MULTI_PHASE_INIT 1
  #endif
  #ifndef CYTHON_USE_MODULE_STATE
    #define CYTHON_USE_MODULE_STATE 0
  #endif
  #if PY_VERSION_HEX < 0x030400a1
    #undef CYTHON_USE_TP_FINALIZE
    #define CYTHON_USE_TP_FINALIZE 0
  #elif !defined(CYTHON_USE_TP_FINALIZE)
    #define CYTHON_USE_TP_FINALIZE 1
  #endif
  #if PY_VERSION_HEX < 0x030600B1
    #undef CYTHON_USE_DICT_VERSIONS
    #define CYTHON_USE_DICT_VERSIONS 0
  #elif !defined(CYTHON_USE_DICT_VERSIONS)
    #define CYTHON_USE_DICT_VERSIONS  (PY_VERSION_HEX < 0x030C00A5)
  #endif
  #if PY_VERSION_HEX < 0x030700A3
    #undef CYTHON_USE_EXC_INFO_STACK
    #define CYTHON_USE_EXC_INFO_STACK 0
  #elif !defined(CYTHON_USE_EXC_INFO_STACK)
    #define CYTHON_USE_EXC_INFO_STACK 1
  #endif
  #ifndef CYTHON_UPDATE_DESCRIPTOR_DOC
    #define CYTHON_UPDATE_DESCRIPTOR_DOC 1
  #endif
#endif
#if !defined(CYTHON_FAST_PYCCALL)
#define CYTHON_FAST_PYCCALL  (CYTHON_FAST_PYCALL && PY_VERSION_HEX >= 0x030600B1)
#endif
#if !defined(CYTHON_VECTORCALL)
#define CYTHON_VECTORCALL  (CYTHON_FAST_PYCCALL && PY_VERSION_HEX >= 0x030800B1)
#endif
#define CYTHON_BACKPORT_VECTORCALL (CYTHON_METH_FASTCALL && PY_VERSION_HEX < 0x030800B1)
#if CYTHON_USE_PYLONG_INTERNALS
  #if PY_MAJOR_VERSION < 3
    #include "longintrepr.h"
  #endif
  #undef SHIFT
  #undef BASE
  #undef MASK
  #ifdef SIZEOF_VOID_P
    enum { __pyx_check_sizeof_voidp = 1 / (int)(SIZEOF_VOID_P == sizeof(void*)) };
  #endif
#endif
#ifndef __has_attribute
  #define __has_attribute(x) 0
#endif
#ifndef __has_cpp_attribute
  #define __has_cpp_attribute(x) 0
#endif
#ifndef CYTHON_RESTRICT
  #if defined(__GNUC__)
    #define CYTHON_RESTRICT __restrict__
  #elif defined(_MSC_VER) && _MSC_VER >= 1400
    #define CYTHON_RESTRICT __restrict
  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
    #define CYTHON_RESTRICT restrict
  #else
    #define CYTHON_RESTRICT
  #endif
#endif
#ifndef CYTHON_UNUSED
  #if defined(__cplusplus)
    /* for clang __has_cpp_attribute(maybe_unused) is true even before C++17
     * but leads to warnings with -pedantic, since it is a C++17 feature */
    #if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || __cplusplus >= 201703L)
      #if __has_cpp_attribute(maybe_unused)
        #define CYTHON_UNUSED [[maybe_unused]]
      #endif
    #endif
  #endif
#endif
#ifndef CYTHON_UNUSED
# if defined(__GNUC__)
#   if !(defined(__cplusplus)) || (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
#     define CYTHON_UNUSED __attribute__ ((__unused__))
#   else
#     define CYTHON_UNUSED
#   endif
# elif defined(__ICC) || (defined(__INTEL_COMPILER) && !defined(_MSC_VER))
#   define CYTHON_UNUSED __attribute__ ((__unused__))
# else
#   define CYTHON_UNUSED
# endif
#endif
#ifndef CYTHON_UNUSED_VAR
#  if defined(__cplusplus)
     template<class T> void CYTHON_UNUSED_VAR( const T& ) { }
#  else
#    define CYTHON_UNUSED_VAR(x) (void)(x)
#  endif
#endif
#ifndef CYTHON_MAYBE_UNUSED_VAR
  #define CYTHON_MAYBE_UNUSED_VAR(x) CYTHON_UNUSED_VAR(x)
#endif
#ifndef CYTHON_NCP_UNUSED
# if CYTHON_COMPILING_IN_CPYTHON
#  define CYTHON_NCP_UNUSED
# else
#  define CYTHON_NCP_UNUSED CYTHON_UNUSED
# endif
#endif
#ifndef CYTHON_USE_CPP_STD_MOVE
  #if defined(__cplusplus) && (\
    __cplusplus >= 201103L || (defined(_MSC_VER) && _MSC_VER >= 1600))
    #define CYTHON_USE_CPP_STD_MOVE 1
  #else
    #define CYTHON_USE_CPP_STD_MOVE 0
  #endif
#endif
#define __Pyx_void_to_None(void_result) ((void)(void_result), Py_INCREF(Py_None), Py_None)
#ifdef _MSC_VER
    #ifndef _MSC_STDINT_H_
        #if _MSC_VER < 1300
            typedef unsigned char     uint8_t;
            typedef unsigned short    uint16_t;
            typedef unsigned int      uint32_t;
        #else
            typedef unsigned __int8   uint8_t;
            typedef unsigned __int16  uint16_t;
            typedef unsigned __int32  uint32_t;
        #endif
    #endif
    #if _MSC_VER < 1300
        #ifdef _WIN64
            typedef unsigned long long  __pyx_uintptr_t;
        #else
            typedef unsigned int        __pyx_uintptr_t;
        #endif
    #else
        #ifdef _WIN64
            typedef unsigned __int64    __pyx_uintptr_t;
        #else
            typedef unsigned __int32    __pyx_uintptr_t;
        #endif
    #endif
#else
    #include <stdint.h>
    typedef uintptr_t  __pyx_uintptr_t;
#endif
#ifndef CYTHON_FALLTHROUGH
  #if defined(__cplusplus)
    /* for clang __has_cpp_attribute(fallthrough) is true even before C++17
     * but leads to warnings with -pedantic, since it is a C++17 feature */
    #if ((defined(_MSVC_LANG) && _MSVC_LANG >= 201703L) || __cplusplus >= 201703L)
      #if __has_cpp_attribute(fallthrough)
        #define CYTHON_FALLTHROUGH [[fallthrough]]
      #endif
    #endif
    #ifndef CYTHON_FALLTHROUGH
      #if __has_cpp_attribute(clang::fallthrough)
        #define CYTHON_FALLTHROUGH [[clang::fallthrough]]
      #elif __has_cpp_attribute(gnu::fallthrough)
        #define CYTHON_FALLTHROUGH [[gnu::fallthrough]]
      #endif
    #endif
  #endif
  #ifndef CYTHON_FALLTHROUGH
    #if __has_attribute(fallthrough)
      #define CYTHON_FALLTHROUGH __attribute__((fallthrough))
    #else
      #define CYTHON_FALLTHROUGH
    #endif
  #endif
  #if defined(__clang__) && defined(__apple_build_version__)
    #if __apple_build_version__ < 7000000
      #undef  CYTHON_FALLTHROUGH
      #define CYTHON_FALLTHROUGH
    #endif
  #endif
#endif
#ifdef __cplusplus
  template <typename T>
  struct __PYX_IS_UNSIGNED_IMPL {static const bool value = T(0) < T(-1);};
  #define __PYX_IS_UNSIGNED(type) (__PYX_IS_UNSIGNED_IMPL<type>::value)
#else
  #define __PYX_IS_UNSIGNED(type) (((type)-1) > 0)
#endif
#if CYTHON_COMPILING_IN_PYPY == 1
  #define __PYX_NEED_TP_PRINT_SLOT  (PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x030A0000)
#else
  #define __PYX_NEED_TP_PRINT_SLOT  (PY_VERSION_HEX >= 0x030800b4 && PY_VERSION_HEX < 0x03090000)
#endif
#define __PYX_REINTERPRET_FUNCION(func_pointer, other_pointer) ((func_pointer)(void(*)(void))(other_pointer))

#ifndef CYTHON_INLINE
  #if defined(__clang__)
    #define CYTHON_INLINE __inline__ __attribute__ ((__unused__))
  #elif defined(__GNUC__)
    #define CYTHON_INLINE __inline__
  #elif defined(_MSC_VER)
    #define CYTHON_INLINE __inline
  #elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
    #define CYTHON_INLINE inline
  #else
    #define CYTHON_INLINE
  #endif
#endif

#define __PYX_BUILD_PY_SSIZE_T "n"
#define CYTHON_FORMAT_SSIZE_T "z"
#if PY_MAJOR_VERSION < 3
  #define __Pyx_BUILTIN_MODULE_NAME "__builtin__"
  #define __Pyx_DefaultClassType PyClass_Type
  #define __Pyx_PyCode_New(a, p, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
          PyCode_New(a+k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
#else
  #define __Pyx_BUILTIN_MODULE_NAME "builtins"
  #define __Pyx_DefaultClassType PyType_Type
#if CYTHON_COMPILING_IN_LIMITED_API
    static CYTHON_INLINE PyObject* __Pyx_PyCode_New(int a, int p, int k, int l, int s, int f,
                                                    PyObject *code, PyObject *c, PyObject* n, PyObject *v,
                                                    PyObject *fv, PyObject *cell, PyObject* fn,
                                                    PyObject *name, int fline, PyObject *lnos) {
        PyObject *exception_table = NULL;
        PyObject *types_module=NULL, *code_type=NULL, *result=NULL;
        #if __PYX_LIMITED_VERSION_HEX < 0x030B0000
        PyObject *version_info; // borrowed
        #endif
        PyObject *py_minor_version = NULL;
        long minor_version = 0;
        PyObject *type, *value, *traceback;
        PyErr_Fetch(&type, &value, &traceback);
        #if __PYX_LIMITED_VERSION_HEX >= 0x030B0000
        minor_version = 11; // we don't yet need to distinguish between versions > 11
        #else
        if (!(version_info = PySys_GetObject("version_info"))) goto end;
        if (!(py_minor_version = PySequence_GetItem(version_info, 1))) goto end;
        minor_version = PyLong_AsLong(py_minor_version);
        if (minor_version == -1 && PyErr_Occurred()) goto end;
        #endif
        if (!(types_module = PyImport_ImportModule("types"))) goto end;
        if (!(code_type = PyObject_GetAttrString(types_module, "CodeType"))) goto end;
        if (minor_version <= 7) {
            (void)p;
            result = PyObject_CallFunction(code_type, "iiiiiOOOOOOiOO", a, k, l, s, f, code,
                          c, n, v, fn, name, fline, lnos, fv, cell);
        } else if (minor_version <= 10) {
            result = PyObject_CallFunction(code_type, "iiiiiiOOOOOOiOO", a,p, k, l, s, f, code,
                          c, n, v, fn, name, fline, lnos, fv, cell);
        } else {
            if (!(exception_table = PyBytes_FromStringAndSize(NULL, 0))) goto end;
            result = PyObject_CallFunction(code_type, "iiiiiiOOOOOOOiOO", a,p, k, l, s, f, code,
                          c, n, v, fn, name, name, fline, lnos, exception_table, fv, cell);
        }
    end:
        Py_XDECREF(code_type);
        Py_XDECREF(exception_table);
        Py_XDECREF(types_module);
        Py_XDECREF(py_minor_version);
        if (type) {
            PyErr_Restore(type, value, traceback);
        }
        return result;
    }
    #ifndef CO_OPTIMIZED
    #define CO_OPTIMIZED 0x0001
    #endif
    #ifndef CO_NEWLOCALS
    #define CO_NEWLOCALS 0x0002
    #endif
    #ifndef CO_VARARGS
    #define CO_VARARGS 0x0004
    #endif
    #ifndef CO_VARKEYWORDS
    #define CO_VARKEYWORDS 0x0008
    #endif
    #ifndef CO_ASYNC_GENERATOR
    #define CO_ASYNC_GENERATOR 0x0200
    #endif
    #ifndef CO_GENERATOR
    #define CO_GENERATOR 0x0020
    #endif
    #ifndef CO_COROUTINE
    #define CO_COROUTINE 0x0080
    #endif
#elif PY_VERSION_HEX >= 0x030B0000
  static CYTHON_INLINE PyCodeObject* __Pyx_PyCode_New(int a, int p, int k, int l, int s, int f,
                                                    PyObject *code, PyObject *c, PyObject* n, PyObject *v,
                                                    PyObject *fv, PyObject *cell, PyObject* fn,
                                                    PyObject *name, int fline, PyObject *lnos) {
    PyCodeObject *result;
    PyObject *empty_bytes = PyBytes_FromStringAndSize("", 0);  // we don't have access to __pyx_empty_bytes here
    if (!empty_bytes) return NULL;
    result =
      #if PY_VERSION_HEX >= 0x030C0000
        PyUnstable_Code_NewWithPosOnlyArgs
      #else
        PyCode_NewWithPosOnlyArgs
      #endif
        (a, p, k, l, s, f, code, c, n, v, fv, cell, fn, name, name, fline, lnos, empty_bytes);
    Py_DECREF(empty_bytes);
    return result;
  }
#elif PY_VERSION_HEX >= 0x030800B2 && !CYTHON_COMPILING_IN_PYPY
  #define __Pyx_PyCode_New(a, p, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
          PyCode_NewWithPosOnlyArgs(a, p, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
#else
  #define __Pyx_PyCode_New(a, p, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)\
          PyCode_New(a, k, l, s, f, code, c, n, v, fv, cell, fn, name, fline, lnos)
#endif
#endif
#if PY_VERSION_HEX >= 0x030900A4 || defined(Py_IS_TYPE)
  #define __Pyx_IS_TYPE(ob, type) Py_IS_TYPE(ob, type)
#else
  #define __Pyx_IS_TYPE(ob, type) (((const PyObject*)ob)->ob_type == (type))
#endif
#if PY_VERSION_HEX >= 0x030A00B1 || defined(Py_Is)
  #define __Pyx_Py_Is(x, y)  Py_Is(x, y)
#else
  #define __Pyx_Py_Is(x, y) ((x) == (y))
#endif
#if PY_VERSION_HEX >= 0x030A00B1 || defined(Py_IsNone)
  #define __Pyx_Py_IsNone(ob) Py_IsNone(ob)
#else
  #define __Pyx_Py_IsNone(ob) __Pyx_Py_Is((ob), Py_None)
#endif
#if PY_VERSION_HEX >= 0x030A00B1 || defined(Py_IsTrue)
  #define __Pyx_Py_IsTrue(ob) Py_IsTrue(ob)
#else
  #define __Pyx_Py_IsTrue(ob) __Pyx_Py_Is((ob), Py_True)
#endif
#if PY_VERSION_HEX >= 0x030A00B1 || defined(Py_IsFalse)
  #define __Pyx_Py_IsFalse(ob) Py_IsFalse(ob)
#else
  #define __Pyx_Py_IsFalse(ob) __Pyx_Py_Is((ob), Py_False)
#endif
#define __Pyx_NoneAsNull(obj)  (__Pyx_Py_IsNone(obj) ? NULL : (obj))
#if PY_VERSION_HEX >= 0x030900F0 && !CYTHON_COMPILING_IN_PYPY
  #define __Pyx_PyObject_GC_IsFinalized(o) PyObject_GC_IsFinalized(o)
#else
  #define __Pyx_PyObject_GC_IsFinalized(o) _PyGC_FINALIZED(o)
#endif
#ifndef CO_COROUTINE
  #define CO_COROUTINE 0x80
#endif
#ifndef CO_ASYNC_GENERATOR
  #define CO_ASYNC_GENERATOR 0x200
#endif
#ifndef Py_TPFLAGS_CHECKTYPES
  #define Py_TPFLAGS_CHECKTYPES 0
#endif
#ifndef Py_TPFLAGS_HAVE_INDEX
  #define Py_TPFLAGS_HAVE_INDEX 0
#endif
#ifndef Py_TPFLAGS_HAVE_NEWBUFFER
  #define Py_TPFLAGS_HAVE_NEWBUFFER 0
#endif
#ifndef Py_TPFLAGS_HAVE_FINALIZE
  #define Py_TPFLAGS_HAVE_FINALIZE 0
#endif
#ifndef Py_TPFLAGS_SEQUENCE
  #define Py_TPFLAGS_SEQUENCE 0
#endif
#ifndef Py_TPFLAGS_MAPPING
  #define Py_TPFLAGS_MAPPING 0
#endif
#ifndef METH_STACKLESS
  #define METH_STACKLESS 0
#endif
#if PY_VERSION_HEX <= 0x030700A3 || !defined(METH_FASTCALL)
  #ifndef METH_FASTCALL
     #define METH_FASTCALL 0x80
  #endif
  typedef PyObject *(*__Pyx_PyCFunctionFast) (PyObject *self, PyObject *const *args, Py_ssize_t nargs);
  typedef PyObject *(*__Pyx_PyCFunctionFastWithKeywords) (PyObject *self, PyObject *const *args,
                                                          Py_ssize_t nargs, PyObject *kwnames);
#else
  #define __Pyx_PyCFunctionFast _PyCFunctionFast
  #define __Pyx_PyCFunctionFastWithKeywords _PyCFunctionFastWithKeywords
#endif
#if CYTHON_METH_FASTCALL
  #define __Pyx_METH_FASTCALL METH_FASTCALL
  #define __Pyx_PyCFunction_FastCall __Pyx_PyCFunctionFast
  #define __Pyx_PyCFunction_FastCallWithKeywords __Pyx_PyCFunctionFastWithKeywords
#else
  #define __Pyx_METH_FASTCALL METH_VARARGS
  #define __Pyx_PyCFunction_FastCall PyCFunction
  #define __Pyx_PyCFunction_FastCallWithKeywords PyCFunctionWithKeywords
#endif
#if CYTHON_VECTORCALL
  #define __pyx_vectorcallfunc vectorcallfunc
  #define __Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET  PY_VECTORCALL_ARGUMENTS_OFFSET
  #define __Pyx_PyVectorcall_NARGS(n)  PyVectorcall_NARGS((size_t)(n))
#elif CYTHON_BACKPORT_VECTORCALL
  typedef PyObject *(*__pyx_vectorcallfunc)(PyObject *callable, PyObject *const *args,
                                            size_t nargsf, PyObject *kwnames);
  #define __Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET  ((size_t)1 << (8 * sizeof(size_t) - 1))
  #define __Pyx_PyVectorcall_NARGS(n)  ((Py_ssize_t)(((size_t)(n)) & ~__Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET))
#else
  #define __Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET  0
  #define __Pyx_PyVectorcall_NARGS(n)  ((Py_ssize_t)(n))
#endif
#if PY_MAJOR_VERSION >= 0x030900B1
#define __Pyx_PyCFunction_CheckExact(func)  PyCFunction_CheckExact(func)
#else
#define __Pyx_PyCFunction_CheckExact(func)  PyCFunction_Check(func)
#endif
#define __Pyx_CyOrPyCFunction_Check(func)  PyCFunction_Check(func)
#if CYTHON_COMPILING_IN_CPYTHON
#define __Pyx_CyOrPyCFunction_GET_FUNCTION(func)  (((PyCFunctionObject*)(func))->m_ml->ml_meth)
#elif !CYTHON_COMPILING_IN_LIMITED_API
#define __Pyx_CyOrPyCFunction_GET_FUNCTION(func)  PyCFunction_GET_FUNCTION(func)
#endif
#if CYTHON_COMPILING_IN_CPYTHON
#define __Pyx_CyOrPyCFunction_GET_FLAGS(func)  (((PyCFunctionObject*)(func))->m_ml->ml_flags)
static CYTHON_INLINE PyObject* __Pyx_CyOrPyCFunction_GET_SELF(PyObject *func) {
    return (__Pyx_CyOrPyCFunction_GET_FLAGS(func) & METH_STATIC) ? NULL : ((PyCFunctionObject*)func)->m_self;
}
#endif
static CYTHON_INLINE int __Pyx__IsSameCFunction(PyObject *func, void *cfunc) {
#if CYTHON_COMPILING_IN_LIMITED_API
    return PyCFunction_Check(func) && PyCFunction_GetFunction(func) == (PyCFunction) cfunc;
#else
    return PyCFunction_Check(func) && PyCFunction_GET_FUNCTION(func) == (PyCFunction) cfunc;
#endif
}
#define __Pyx_IsSameCFunction(func, cfunc)   __Pyx__IsSameCFunction(func, cfunc)
#if __PYX_LIMITED_VERSION_HEX < 0x030900B1
  #define __Pyx_PyType_FromModuleAndSpec(m, s, b)  ((void)m, PyType_FromSpecWithBases(s, b))
  typedef PyObject *(*__Pyx_PyCMethod)(PyObject *, PyTypeObject *, PyObject *const *, size_t, PyObject *);
#else
  #define __Pyx_PyType_FromModuleAndSpec(m, s, b)  PyType_FromModuleAndSpec(m, s, b)
  #define __Pyx_PyCMethod  PyCMethod
#endif
#ifndef METH_METHOD
  #define METH_METHOD 0x200
#endif
#if CYTHON_COMPILING_IN_PYPY && !defined(PyObject_Malloc)
  #define PyObject_Malloc(s)   PyMem_Malloc(s)
  #define PyObject_Free(p)     PyMem_Free(p)
  #define PyObject_Realloc(p)  PyMem_Realloc(p)
#endif
#if CYTHON_COMPILING_IN_LIMITED_API
  #define __Pyx_PyCode_HasFreeVars(co)  (PyCode_GetNumFree(co) > 0)
  #define __Pyx_PyFrame_SetLineNumber(frame, lineno)
#else
  #define __Pyx_PyCode_HasFreeVars(co)  (PyCode_GetNumFree(co) > 0)
  #define __Pyx_PyFrame_SetLineNumber(frame, lineno)  (frame)->f_lineno = (lineno)
#endif
#if CYTHON_COMPILING_IN_LIMITED_API
  #define __Pyx_PyThreadState_Current PyThreadState_Get()
#elif !CYTHON_FAST_THREAD_STATE
  #define __Pyx_PyThreadState_Current PyThreadState_GET()
#elif PY_VERSION_HEX >= 0x03060000
  #define __Pyx_PyThreadState_Current _PyThreadState_UncheckedGet()
#elif PY_VERSION_HEX >= 0x03000000
  #define __Pyx_PyThreadState_Current PyThreadState_GET()
#else
  #define __Pyx_PyThreadState_Current _PyThreadState_Current
#endif
#if CYTHON_COMPILING_IN_LIMITED_API
static CYTHON_INLINE void *__Pyx_PyModule_GetState(PyObject *op)
{
    void *result;
    result = PyModule_GetState(op);
    if (!result)
        Py_FatalError("Couldn't find the module state");
    return result;
}
#endif
#define __Pyx_PyObject_GetSlot(obj, name, func_ctype)  __Pyx_PyType_GetSlot(Py_TYPE(obj), name, func_ctype)
#if CYTHON_COMPILING_IN_LIMITED_API
  #define __Pyx_PyType_GetSlot(type, name, func_ctype)  ((func_ctype) PyType_GetSlot((type), Py_##name))
#else
  #define __Pyx_PyType_GetSlot(type, name, func_ctype)  ((type)->name)
#endif
#if PY_VERSION_HEX < 0x030700A2 && !defined(PyThread_tss_create) && !defined(Py_tss_NEEDS_INIT)
#include "pythread.h"
#define Py_tss_NEEDS_INIT 0
typedef int Py_tss_t;
static CYTHON_INLINE int PyThread_tss_create(Py_tss_t *key) {
  *key = PyThread_create_key();
  return 0;
}
static CYTHON_INLINE Py_tss_t * PyThread_tss_alloc(void) {
  Py_tss_t *key = (Py_tss_t *)PyObject_Malloc(sizeof(Py_tss_t));
  *key = Py_tss_NEEDS_INIT;
  return key;
}
static CYTHON_INLINE void PyThread_tss_free(Py_tss_t *key) {
  PyObject_Free(key);
}
static CYTHON_INLINE int PyThread_tss_is_created(Py_tss_t *key) {
  return *key != Py_tss_NEEDS_INIT;
}
static CYTHON_INLINE void PyThread_tss_delete(Py_tss_t *key) {
  PyThread_delete_key(*key);
  *key = Py_tss_NEEDS_INIT;
}
static CYTHON_INLINE int PyThread_tss_set(Py_tss_t *key, void *value) {
  return PyThread_set_key_value(*key, value);
}
static CYTHON_INLINE void * PyThread_tss_get(Py_tss_t *key) {
  return PyThread_get_key_value(*key);
}
#endif
#if PY_MAJOR_VERSION < 3
    #if CYTHON_COMPILING_IN_PYPY
        #if PYPY_VERSION_NUM < 0x07030600
            #if defined(__cplusplus) && __cplusplus >= 201402L
                [[deprecated("`with nogil:` inside a nogil function will not release the GIL in PyPy2 < 7.3.6")]]
            #elif defined(__GNUC__) || defined(__clang__)
                __attribute__ ((__deprecated__("`with nogil:` inside a nogil function will not release the GIL in PyPy2 < 7.3.6")))
            #elif defined(_MSC_VER)
                __declspec(deprecated("`with nogil:` inside a nogil function will not release the GIL in PyPy2 < 7.3.6"))
            #endif
            static CYTHON_INLINE int PyGILState_Check(void) {
                return 0;
            }
        #else  // PYPY_VERSION_NUM < 0x07030600
        #endif  // PYPY_VERSION_NUM < 0x07030600
    #else
        static CYTHON_INLINE int PyGILState_Check(void) {
            PyThreadState * tstate = _PyThreadState_Current;
            return tstate && (tstate == PyGILState_GetThisThreadState());
        }
    #endif
#endif
#if CYTHON_COMPILING_IN_CPYTHON || defined(_PyDict_NewPresized)
#define __Pyx_PyDict_NewPresized(n)  ((n <= 8) ? PyDict_New() : _PyDict_NewPresized(n))
#else
#define __Pyx_PyDict_NewPresized(n)  PyDict_New()
#endif
#if PY_MAJOR_VERSION >= 3 || CYTHON_FUTURE_DIVISION
  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_TrueDivide(x,y)
  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceTrueDivide(x,y)
#else
  #define __Pyx_PyNumber_Divide(x,y)         PyNumber_Divide(x,y)
  #define __Pyx_PyNumber_InPlaceDivide(x,y)  PyNumber_InPlaceDivide(x,y)
#endif
#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX > 0x030600B4 && CYTHON_USE_UNICODE_INTERNALS
#define __Pyx_PyDict_GetItemStrWithError(dict, name)  _PyDict_GetItem_KnownHash(dict, name, ((PyASCIIObject *) name)->hash)
static CYTHON_INLINE PyObject * __Pyx_PyDict_GetItemStr(PyObject *dict, PyObject *name) {
    PyObject *res = __Pyx_PyDict_GetItemStrWithError(dict, name);
    if (res == NULL) PyErr_Clear();
    return res;
}
#elif PY_MAJOR_VERSION >= 3 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07020000)
#define __Pyx_PyDict_GetItemStrWithError  PyDict_GetItemWithError
#define __Pyx_PyDict_GetItemStr           PyDict_GetItem
#else
static CYTHON_INLINE PyObject * __Pyx_PyDict_GetItemStrWithError(PyObject *dict, PyObject *name) {
#if CYTHON_COMPILING_IN_PYPY
    return PyDict_GetItem(dict, name);
#else
    PyDictEntry *ep;
    PyDictObject *mp = (PyDictObject*) dict;
    long hash = ((PyStringObject *) name)->ob_shash;
    assert(hash != -1);
    ep = (mp->ma_lookup)(mp, name, hash);
    if (ep == NULL) {
        return NULL;
    }
    return ep->me_value;
#endif
}
#define __Pyx_PyDict_GetItemStr           PyDict_GetItem
#endif
#if CYTHON_USE_TYPE_SLOTS
  #define __Pyx_PyType_GetFlags(tp)   (((PyTypeObject *)tp)->tp_flags)
  #define __Pyx_PyType_HasFeature(type, feature)  ((__Pyx_PyType_GetFlags(type) & (feature)) != 0)
  #define __Pyx_PyObject_GetIterNextFunc(obj)  (Py_TYPE(obj)->tp_iternext)
#else
  #define __Pyx_PyType_GetFlags(tp)   (PyType_GetFlags((PyTypeObject *)tp))
  #define __Pyx_PyType_HasFeature(type, feature)  PyType_HasFeature(type, feature)
  #define __Pyx_PyObject_GetIterNextFunc(obj)  PyIter_Next
#endif
#if CYTHON_COMPILING_IN_LIMITED_API
  #define __Pyx_SetItemOnTypeDict(tp, k, v) PyObject_GenericSetAttr((PyObject*)tp, k, v)
#else
  #define __Pyx_SetItemOnTypeDict(tp, k, v) PyDict_SetItem(tp->tp_dict, k, v)
#endif
#if CYTHON_USE_TYPE_SPECS && PY_VERSION_HEX >= 0x03080000
#define __Pyx_PyHeapTypeObject_GC_Del(obj)  {\
    PyTypeObject *type = Py_TYPE(obj);\
    assert(__Pyx_PyType_HasFeature(type, Py_TPFLAGS_HEAPTYPE));\
    PyObject_GC_Del(obj);\
    Py_DECREF(type);\
}
#else
#define __Pyx_PyHeapTypeObject_GC_Del(obj)  PyObject_GC_Del(obj)
#endif
#if CYTHON_COMPILING_IN_LIMITED_API
  #define CYTHON_PEP393_ENABLED 1
  #define __Pyx_PyUnicode_READY(op)       (0)
  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GetLength(u)
  #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_ReadChar(u, i)
  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   ((void)u, 1114111U)
  #define __Pyx_PyUnicode_KIND(u)         ((void)u, (0))
  #define __Pyx_PyUnicode_DATA(u)         ((void*)u)
  #define __Pyx_PyUnicode_READ(k, d, i)   ((void)k, PyUnicode_ReadChar((PyObject*)(d), i))
  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GetLength(u))
#elif PY_VERSION_HEX > 0x03030000 && defined(PyUnicode_KIND)
  #define CYTHON_PEP393_ENABLED 1
  #if PY_VERSION_HEX >= 0x030C0000
    #define __Pyx_PyUnicode_READY(op)       (0)
  #else
    #define __Pyx_PyUnicode_READY(op)       (likely(PyUnicode_IS_READY(op)) ?\
                                                0 : _PyUnicode_Ready((PyObject *)(op)))
  #endif
  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_LENGTH(u)
  #define __Pyx_PyUnicode_READ_CHAR(u, i) PyUnicode_READ_CHAR(u, i)
  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   PyUnicode_MAX_CHAR_VALUE(u)
  #define __Pyx_PyUnicode_KIND(u)         ((int)PyUnicode_KIND(u))
  #define __Pyx_PyUnicode_DATA(u)         PyUnicode_DATA(u)
  #define __Pyx_PyUnicode_READ(k, d, i)   PyUnicode_READ(k, d, i)
  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  PyUnicode_WRITE(k, d, i, (Py_UCS4) ch)
  #if PY_VERSION_HEX >= 0x030C0000
    #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_LENGTH(u))
  #else
    #if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x03090000
    #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : ((PyCompactUnicodeObject *)(u))->wstr_length))
    #else
    #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != (likely(PyUnicode_IS_READY(u)) ? PyUnicode_GET_LENGTH(u) : PyUnicode_GET_SIZE(u)))
    #endif
  #endif
#else
  #define CYTHON_PEP393_ENABLED 0
  #define PyUnicode_1BYTE_KIND  1
  #define PyUnicode_2BYTE_KIND  2
  #define PyUnicode_4BYTE_KIND  4
  #define __Pyx_PyUnicode_READY(op)       (0)
  #define __Pyx_PyUnicode_GET_LENGTH(u)   PyUnicode_GET_SIZE(u)
  #define __Pyx_PyUnicode_READ_CHAR(u, i) ((Py_UCS4)(PyUnicode_AS_UNICODE(u)[i]))
  #define __Pyx_PyUnicode_MAX_CHAR_VALUE(u)   ((sizeof(Py_UNICODE) == 2) ? 65535U : 1114111U)
  #define __Pyx_PyUnicode_KIND(u)         ((int)sizeof(Py_UNICODE))
  #define __Pyx_PyUnicode_DATA(u)         ((void*)PyUnicode_AS_UNICODE(u))
  #define __Pyx_PyUnicode_READ(k, d, i)   ((void)(k), (Py_UCS4)(((Py_UNICODE*)d)[i]))
  #define __Pyx_PyUnicode_WRITE(k, d, i, ch)  (((void)(k)), ((Py_UNICODE*)d)[i] = (Py_UNICODE) ch)
  #define __Pyx_PyUnicode_IS_TRUE(u)      (0 != PyUnicode_GET_SIZE(u))
#endif
#if CYTHON_COMPILING_IN_PYPY
  #define __Pyx_PyUnicode_Concat(a, b)      PyNumber_Add(a, b)
  #define __Pyx_PyUnicode_ConcatSafe(a, b)  PyNumber_Add(a, b)
#else
  #define __Pyx_PyUnicode_Concat(a, b)      PyUnicode_Concat(a, b)
  #define __Pyx_PyUnicode_ConcatSafe(a, b)  ((unlikely((a) == Py_None) || unlikely((b) == Py_None)) ?\
      PyNumber_Add(a, b) : __Pyx_PyUnicode_Concat(a, b))
#endif
#if CYTHON_COMPILING_IN_PYPY
  #if !defined(PyUnicode_DecodeUnicodeEscape)
    #define PyUnicode_DecodeUnicodeEscape(s, size, errors)  PyUnicode_Decode(s, size, "unicode_escape", errors)
  #endif
  #if !defined(PyUnicode_Contains) || (PY_MAJOR_VERSION == 2 && PYPY_VERSION_NUM < 0x07030500)
    #undef PyUnicode_Contains
    #define PyUnicode_Contains(u, s)  PySequence_Contains(u, s)
  #endif
  #if !defined(PyByteArray_Check)
    #define PyByteArray_Check(obj)  PyObject_TypeCheck(obj, &PyByteArray_Type)
  #endif
  #if !defined(PyObject_Format)
    #define PyObject_Format(obj, fmt)  PyObject_CallMethod(obj, "__format__", "O", fmt)
  #endif
#endif
#define __Pyx_PyString_FormatSafe(a, b)   ((unlikely((a) == Py_None || (PyString_Check(b) && !PyString_CheckExact(b)))) ? PyNumber_Remainder(a, b) : __Pyx_PyString_Format(a, b))
#define __Pyx_PyUnicode_FormatSafe(a, b)  ((unlikely((a) == Py_None || (PyUnicode_Check(b) && !PyUnicode_CheckExact(b)))) ? PyNumber_Remainder(a, b) : PyUnicode_Format(a, b))
#if PY_MAJOR_VERSION >= 3
  #define __Pyx_PyString_Format(a, b)  PyUnicode_Format(a, b)
#else
  #define __Pyx_PyString_Format(a, b)  PyString_Format(a, b)
#endif
#if PY_MAJOR_VERSION < 3 && !defined(PyObject_ASCII)
  #define PyObject_ASCII(o)            PyObject_Repr(o)
#endif
#if PY_MAJOR_VERSION >= 3
  #define PyBaseString_Type            PyUnicode_Type
  #define PyStringObject               PyUnicodeObject
  #define PyString_Type                PyUnicode_Type
  #define PyString_Check               PyUnicode_Check
  #define PyString_CheckExact          PyUnicode_CheckExact
#ifndef PyObject_Unicode
  #define PyObject_Unicode             PyObject_Str
#endif
#endif
#if PY_MAJOR_VERSION >= 3
  #define __Pyx_PyBaseString_Check(obj) PyUnicode_Check(obj)
  #define __Pyx_PyBaseString_CheckExact(obj) PyUnicode_CheckExact(obj)
#else
  #define __Pyx_PyBaseString_Check(obj) (PyString_Check(obj) || PyUnicode_Check(obj))
  #define __Pyx_PyBaseString_CheckExact(obj) (PyString_CheckExact(obj) || PyUnicode_CheckExact(obj))
#endif
#if CYTHON_COMPILING_IN_CPYTHON
  #define __Pyx_PySequence_ListKeepNew(obj)\
    (likely(PyList_CheckExact(obj) && Py_REFCNT(obj) == 1) ? __Pyx_NewRef(obj) : PySequence_List(obj))
#else
  #define __Pyx_PySequence_ListKeepNew(obj)  PySequence_List(obj)
#endif
#ifndef PySet_CheckExact
  #define PySet_CheckExact(obj)        __Pyx_IS_TYPE(obj, &PySet_Type)
#endif
#if PY_VERSION_HEX >= 0x030900A4
  #define __Pyx_SET_REFCNT(obj, refcnt) Py_SET_REFCNT(obj, refcnt)
  #define __Pyx_SET_SIZE(obj, size) Py_SET_SIZE(obj, size)
#else
  #define __Pyx_SET_REFCNT(obj, refcnt) Py_REFCNT(obj) = (refcnt)
  #define __Pyx_SET_SIZE(obj, size) Py_SIZE(obj) = (size)
#endif
#if CYTHON_ASSUME_SAFE_MACROS
  #define __Pyx_PySequence_ITEM(o, i) PySequence_ITEM(o, i)
  #define __Pyx_PySequence_SIZE(seq)  Py_SIZE(seq)
  #define __Pyx_PyTuple_SET_ITEM(o, i, v) (PyTuple_SET_ITEM(o, i, v), (0))
  #define __Pyx_PyList_SET_ITEM(o, i, v) (PyList_SET_ITEM(o, i, v), (0))
  #define __Pyx_PyTuple_GET_SIZE(o) PyTuple_GET_SIZE(o)
  #define __Pyx_PyList_GET_SIZE(o) PyList_GET_SIZE(o)
  #define __Pyx_PySet_GET_SIZE(o) PySet_GET_SIZE(o)
  #define __Pyx_PyBytes_GET_SIZE(o) PyBytes_GET_SIZE(o)
  #define __Pyx_PyByteArray_GET_SIZE(o) PyByteArray_GET_SIZE(o)
#else
  #define __Pyx_PySequence_ITEM(o, i) PySequence_GetItem(o, i)
  #define __Pyx_PySequence_SIZE(seq)  PySequence_Size(seq)
  #define __Pyx_PyTuple_SET_ITEM(o, i, v) PyTuple_SetItem(o, i, v)
  #define __Pyx_PyList_SET_ITEM(o, i, v) PyList_SetItem(o, i, v)
  #define __Pyx_PyTuple_GET_SIZE(o) PyTuple_Size(o)
  #define __Pyx_PyList_GET_SIZE(o) PyList_Size(o)
  #define __Pyx_PySet_GET_SIZE(o) PySet_Size(o)
  #define __Pyx_PyBytes_GET_SIZE(o) PyBytes_Size(o)
  #define __Pyx_PyByteArray_GET_SIZE(o) PyByteArray_Size(o)
#endif
#if PY_MAJOR_VERSION >= 3
  #define PyIntObject                  PyLongObject
  #define PyInt_Type                   PyLong_Type
  #define PyInt_Check(op)              PyLong_Check(op)
  #define PyInt_CheckExact(op)         PyLong_CheckExact(op)
  #define __Pyx_Py3Int_Check(op)       PyLong_Check(op)
  #define __Pyx_Py3Int_CheckExact(op)  PyLong_CheckExact(op)
  #define PyInt_FromString             PyLong_FromString
  #define PyInt_FromUnicode            PyLong_FromUnicode
  #define PyInt_FromLong               PyLong_FromLong
  #define PyInt_FromSize_t             PyLong_FromSize_t
  #define PyInt_FromSsize_t            PyLong_FromSsize_t
  #define PyInt_AsLong                 PyLong_AsLong
  #define PyInt_AS_LONG                PyLong_AS_LONG
  #define PyInt_AsSsize_t              PyLong_AsSsize_t
  #define PyInt_AsUnsignedLongMask     PyLong_AsUnsignedLongMask
  #define PyInt_AsUnsignedLongLongMask PyLong_AsUnsignedLongLongMask
  #define PyNumber_Int                 PyNumber_Long
#else
  #define __Pyx_Py3Int_Check(op)       (PyLong_Check(op) || PyInt_Check(op))
  #define __Pyx_Py3Int_CheckExact(op)  (PyLong_CheckExact(op) || PyInt_CheckExact(op))
#endif
#if PY_MAJOR_VERSION >= 3
  #define PyBoolObject                 PyLongObject
#endif
#if PY_MAJOR_VERSION >= 3 && CYTHON_COMPILING_IN_PYPY
  #ifndef PyUnicode_InternFromString
    #define PyUnicode_InternFromString(s) PyUnicode_FromString(s)
  #endif
#endif
#if PY_VERSION_HEX < 0x030200A4
  typedef long Py_hash_t;
  #define __Pyx_PyInt_FromHash_t PyInt_FromLong
  #define __Pyx_PyInt_AsHash_t   __Pyx_PyIndex_AsHash_t
#else
  #define __Pyx_PyInt_FromHash_t PyInt_FromSsize_t
  #define __Pyx_PyInt_AsHash_t   __Pyx_PyIndex_AsSsize_t
#endif
#if CYTHON_USE_ASYNC_SLOTS
  #if PY_VERSION_HEX >= 0x030500B1
    #define __Pyx_PyAsyncMethodsStruct PyAsyncMethods
    #define __Pyx_PyType_AsAsync(obj) (Py_TYPE(obj)->tp_as_async)
  #else
    #define __Pyx_PyType_AsAsync(obj) ((__Pyx_PyAsyncMethodsStruct*) (Py_TYPE(obj)->tp_reserved))
  #endif
#else
  #define __Pyx_PyType_AsAsync(obj) NULL
#endif
#ifndef __Pyx_PyAsyncMethodsStruct
    typedef struct {
        unaryfunc am_await;
        unaryfunc am_aiter;
        unaryfunc am_anext;
    } __Pyx_PyAsyncMethodsStruct;
#endif

#if defined(_WIN32) || defined(WIN32) || defined(MS_WINDOWS)
  #if !defined(_USE_MATH_DEFINES)
    #define _USE_MATH_DEFINES
  #endif
#endif
#include <math.h>
#ifdef NAN
#define __PYX_NAN() ((float) NAN)
#else
static CYTHON_INLINE float __PYX_NAN() {
  float value;
  memset(&value, 0xFF, sizeof(value));
  return value;
}
#endif
#if defined(__CYGWIN__) && defined(_LDBL_EQ_DBL)
#define __Pyx_truncl trunc
#else
#define __Pyx_truncl truncl
#endif

#define __PYX_MARK_ERR_POS(f_index, lineno) \
    { __pyx_filename = __pyx_f[f_index]; (void)__pyx_filename; __pyx_lineno = lineno; (void)__pyx_lineno; __pyx_clineno = __LINE__; (void)__pyx_clineno; }
#define __PYX_ERR(f_index, lineno, Ln_error) \
    { __PYX_MARK_ERR_POS(f_index, lineno) goto Ln_error; }

#ifdef CYTHON_EXTERN_C
    #undef __PYX_EXTERN_C
    #define __PYX_EXTERN_C CYTHON_EXTERN_C
#elif defined(__PYX_EXTERN_C)
    #ifdef _MSC_VER
    #pragma message ("Please do not define the '__PYX_EXTERN_C' macro externally. Use 'CYTHON_EXTERN_C' instead.")
    #else
    #warning Please do not define the '__PYX_EXTERN_C' macro externally. Use 'CYTHON_EXTERN_C' instead.
    #endif
#else
  #ifdef __cplusplus
    #define __PYX_EXTERN_C extern "C"
  #else
    #define __PYX_EXTERN_C extern
  #endif
#endif

#define __PYX_HAVE__wildboar__tree___ctree
#define __PYX_HAVE_API__wildboar__tree___ctree
/* Early includes */
#include <string.h>
#include <stdio.h>

    /* Using NumPy API declarations from "numpy/__init__.cython-30.pxd" */
    
#include "numpy/arrayobject.h"
#include "numpy/ndarrayobject.h"
#include "numpy/ndarraytypes.h"
#include "numpy/arrayscalars.h"
#include "numpy/ufuncobject.h"
#include <math.h>
#include <stdlib.h>
#ifdef _OPENMP
#include <omp.h>
#endif /* _OPENMP */

#if defined(PYREX_WITHOUT_ASSERTIONS) && !defined(CYTHON_WITHOUT_ASSERTIONS)
#define CYTHON_WITHOUT_ASSERTIONS
#endif

typedef struct {PyObject **p; const char *s; const Py_ssize_t n; const char* encoding;
                const char is_unicode; const char is_str; const char intern; } __Pyx_StringTabEntry;

#define __PYX_DEFAULT_STRING_ENCODING_IS_ASCII 0
#define __PYX_DEFAULT_STRING_ENCODING_IS_UTF8 0
#define __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT (PY_MAJOR_VERSION >= 3 && __PYX_DEFAULT_STRING_ENCODING_IS_UTF8)
#define __PYX_DEFAULT_STRING_ENCODING ""
#define __Pyx_PyObject_FromString __Pyx_PyBytes_FromString
#define __Pyx_PyObject_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
#define __Pyx_uchar_cast(c) ((unsigned char)c)
#define __Pyx_long_cast(x) ((long)x)
#define __Pyx_fits_Py_ssize_t(v, type, is_signed)  (\
    (sizeof(type) < sizeof(Py_ssize_t))  ||\
    (sizeof(type) > sizeof(Py_ssize_t) &&\
          likely(v < (type)PY_SSIZE_T_MAX ||\
                 v == (type)PY_SSIZE_T_MAX)  &&\
          (!is_signed || likely(v > (type)PY_SSIZE_T_MIN ||\
                                v == (type)PY_SSIZE_T_MIN)))  ||\
    (sizeof(type) == sizeof(Py_ssize_t) &&\
          (is_signed || likely(v < (type)PY_SSIZE_T_MAX ||\
                               v == (type)PY_SSIZE_T_MAX)))  )
static CYTHON_INLINE int __Pyx_is_valid_index(Py_ssize_t i, Py_ssize_t limit) {
    return (size_t) i < (size_t) limit;
}
#if defined (__cplusplus) && __cplusplus >= 201103L
    #include <cstdlib>
    #define __Pyx_sst_abs(value) std::abs(value)
#elif SIZEOF_INT >= SIZEOF_SIZE_T
    #define __Pyx_sst_abs(value) abs(value)
#elif SIZEOF_LONG >= SIZEOF_SIZE_T
    #define __Pyx_sst_abs(value) labs(value)
#elif defined (_MSC_VER)
    #define __Pyx_sst_abs(value) ((Py_ssize_t)_abs64(value))
#elif defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
    #define __Pyx_sst_abs(value) llabs(value)
#elif defined (__GNUC__)
    #define __Pyx_sst_abs(value) __builtin_llabs(value)
#else
    #define __Pyx_sst_abs(value) ((value<0) ? -value : value)
#endif
static CYTHON_INLINE Py_ssize_t __Pyx_ssize_strlen(const char *s);
static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject*);
static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject*, Py_ssize_t* length);
static CYTHON_INLINE PyObject* __Pyx_PyByteArray_FromString(const char*);
#define __Pyx_PyByteArray_FromStringAndSize(s, l) PyByteArray_FromStringAndSize((const char*)s, l)
#define __Pyx_PyBytes_FromString        PyBytes_FromString
#define __Pyx_PyBytes_FromStringAndSize PyBytes_FromStringAndSize
static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char*);
#if PY_MAJOR_VERSION < 3
    #define __Pyx_PyStr_FromString        __Pyx_PyBytes_FromString
    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyBytes_FromStringAndSize
#else
    #define __Pyx_PyStr_FromString        __Pyx_PyUnicode_FromString
    #define __Pyx_PyStr_FromStringAndSize __Pyx_PyUnicode_FromStringAndSize
#endif
#define __Pyx_PyBytes_AsWritableString(s)     ((char*) PyBytes_AS_STRING(s))
#define __Pyx_PyBytes_AsWritableSString(s)    ((signed char*) PyBytes_AS_STRING(s))
#define __Pyx_PyBytes_AsWritableUString(s)    ((unsigned char*) PyBytes_AS_STRING(s))
#define __Pyx_PyBytes_AsString(s)     ((const char*) PyBytes_AS_STRING(s))
#define __Pyx_PyBytes_AsSString(s)    ((const signed char*) PyBytes_AS_STRING(s))
#define __Pyx_PyBytes_AsUString(s)    ((const unsigned char*) PyBytes_AS_STRING(s))
#define __Pyx_PyObject_AsWritableString(s)    ((char*)(__pyx_uintptr_t) __Pyx_PyObject_AsString(s))
#define __Pyx_PyObject_AsWritableSString(s)    ((signed char*)(__pyx_uintptr_t) __Pyx_PyObject_AsString(s))
#define __Pyx_PyObject_AsWritableUString(s)    ((unsigned char*)(__pyx_uintptr_t) __Pyx_PyObject_AsString(s))
#define __Pyx_PyObject_AsSString(s)    ((const signed char*) __Pyx_PyObject_AsString(s))
#define __Pyx_PyObject_AsUString(s)    ((const unsigned char*) __Pyx_PyObject_AsString(s))
#define __Pyx_PyObject_FromCString(s)  __Pyx_PyObject_FromString((const char*)s)
#define __Pyx_PyBytes_FromCString(s)   __Pyx_PyBytes_FromString((const char*)s)
#define __Pyx_PyByteArray_FromCString(s)   __Pyx_PyByteArray_FromString((const char*)s)
#define __Pyx_PyStr_FromCString(s)     __Pyx_PyStr_FromString((const char*)s)
#define __Pyx_PyUnicode_FromCString(s) __Pyx_PyUnicode_FromString((const char*)s)
#if CYTHON_COMPILING_IN_LIMITED_API
static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const wchar_t *u)
{
    const wchar_t *u_end = u;
    while (*u_end++) ;
    return (size_t)(u_end - u - 1);
}
#else
static CYTHON_INLINE size_t __Pyx_Py_UNICODE_strlen(const Py_UNICODE *u)
{
    const Py_UNICODE *u_end = u;
    while (*u_end++) ;
    return (size_t)(u_end - u - 1);
}
#endif
#define __Pyx_PyUnicode_FromOrdinal(o)       PyUnicode_FromOrdinal((int)o)
#define __Pyx_PyUnicode_FromUnicode(u)       PyUnicode_FromUnicode(u, __Pyx_Py_UNICODE_strlen(u))
#define __Pyx_PyUnicode_FromUnicodeAndLength PyUnicode_FromUnicode
#define __Pyx_PyUnicode_AsUnicode            PyUnicode_AsUnicode
#define __Pyx_NewRef(obj) (Py_INCREF(obj), obj)
#define __Pyx_Owned_Py_None(b) __Pyx_NewRef(Py_None)
static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b);
static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject*);
static CYTHON_INLINE int __Pyx_PyObject_IsTrueAndDecref(PyObject*);
static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x);
#define __Pyx_PySequence_Tuple(obj)\
    (likely(PyTuple_CheckExact(obj)) ? __Pyx_NewRef(obj) : PySequence_Tuple(obj))
static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject*);
static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t);
static CYTHON_INLINE Py_hash_t __Pyx_PyIndex_AsHash_t(PyObject*);
#if CYTHON_ASSUME_SAFE_MACROS
#define __pyx_PyFloat_AsDouble(x) (PyFloat_CheckExact(x) ? PyFloat_AS_DOUBLE(x) : PyFloat_AsDouble(x))
#else
#define __pyx_PyFloat_AsDouble(x) PyFloat_AsDouble(x)
#endif
#define __pyx_PyFloat_AsFloat(x) ((float) __pyx_PyFloat_AsDouble(x))
#if PY_MAJOR_VERSION >= 3
#define __Pyx_PyNumber_Int(x) (PyLong_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Long(x))
#else
#define __Pyx_PyNumber_Int(x) (PyInt_CheckExact(x) ? __Pyx_NewRef(x) : PyNumber_Int(x))
#endif
#if CYTHON_USE_PYLONG_INTERNALS
  #if PY_VERSION_HEX >= 0x030C00A7
  #ifndef _PyLong_SIGN_MASK
    #define _PyLong_SIGN_MASK 3
  #endif
  #ifndef _PyLong_NON_SIZE_BITS
    #define _PyLong_NON_SIZE_BITS 3
  #endif
  #define __Pyx_PyLong_Sign(x)  (((PyLongObject*)x)->long_value.lv_tag & _PyLong_SIGN_MASK)
  #define __Pyx_PyLong_IsNeg(x)  ((__Pyx_PyLong_Sign(x) & 2) != 0)
  #define __Pyx_PyLong_IsNonNeg(x)  (!__Pyx_PyLong_IsNeg(x))
  #define __Pyx_PyLong_IsZero(x)  (__Pyx_PyLong_Sign(x) & 1)
  #define __Pyx_PyLong_IsPos(x)  (__Pyx_PyLong_Sign(x) == 0)
  #define __Pyx_PyLong_CompactValueUnsigned(x)  (__Pyx_PyLong_Digits(x)[0])
  #define __Pyx_PyLong_DigitCount(x)  ((Py_ssize_t) (((PyLongObject*)x)->long_value.lv_tag >> _PyLong_NON_SIZE_BITS))
  #define __Pyx_PyLong_SignedDigitCount(x)\
        ((1 - (Py_ssize_t) __Pyx_PyLong_Sign(x)) * __Pyx_PyLong_DigitCount(x))
  #if defined(PyUnstable_Long_IsCompact) && defined(PyUnstable_Long_CompactValue)
    #define __Pyx_PyLong_IsCompact(x)     PyUnstable_Long_IsCompact((PyLongObject*) x)
    #define __Pyx_PyLong_CompactValue(x)  PyUnstable_Long_CompactValue((PyLongObject*) x)
  #else
    #define __Pyx_PyLong_IsCompact(x)     (((PyLongObject*)x)->long_value.lv_tag < (2 << _PyLong_NON_SIZE_BITS))
    #define __Pyx_PyLong_CompactValue(x)  ((1 - (Py_ssize_t) __Pyx_PyLong_Sign(x)) * (Py_ssize_t) __Pyx_PyLong_Digits(x)[0])
  #endif
  typedef Py_ssize_t  __Pyx_compact_pylong;
  typedef size_t  __Pyx_compact_upylong;
  #else  // Py < 3.12
  #define __Pyx_PyLong_IsNeg(x)  (Py_SIZE(x) < 0)
  #define __Pyx_PyLong_IsNonNeg(x)  (Py_SIZE(x) >= 0)
  #define __Pyx_PyLong_IsZero(x)  (Py_SIZE(x) == 0)
  #define __Pyx_PyLong_IsPos(x)  (Py_SIZE(x) > 0)
  #define __Pyx_PyLong_CompactValueUnsigned(x)  ((Py_SIZE(x) == 0) ? 0 : __Pyx_PyLong_Digits(x)[0])
  #define __Pyx_PyLong_DigitCount(x)  __Pyx_sst_abs(Py_SIZE(x))
  #define __Pyx_PyLong_SignedDigitCount(x)  Py_SIZE(x)
  #define __Pyx_PyLong_IsCompact(x)  (Py_SIZE(x) == 0 || Py_SIZE(x) == 1 || Py_SIZE(x) == -1)
  #define __Pyx_PyLong_CompactValue(x)\
        ((Py_SIZE(x) == 0) ? (sdigit) 0 : ((Py_SIZE(x) < 0) ? -(sdigit)__Pyx_PyLong_Digits(x)[0] : (sdigit)__Pyx_PyLong_Digits(x)[0]))
  typedef sdigit  __Pyx_compact_pylong;
  typedef digit  __Pyx_compact_upylong;
  #endif
  #if PY_VERSION_HEX >= 0x030C00A5
  #define __Pyx_PyLong_Digits(x)  (((PyLongObject*)x)->long_value.ob_digit)
  #else
  #define __Pyx_PyLong_Digits(x)  (((PyLongObject*)x)->ob_digit)
  #endif
#endif
#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
#include <string.h>
static int __Pyx_sys_getdefaultencoding_not_ascii;
static int __Pyx_init_sys_getdefaultencoding_params(void) {
    PyObject* sys;
    PyObject* default_encoding = NULL;
    PyObject* ascii_chars_u = NULL;
    PyObject* ascii_chars_b = NULL;
    const char* default_encoding_c;
    sys = PyImport_ImportModule("sys");
    if (!sys) goto bad;
    default_encoding = PyObject_CallMethod(sys, (char*) "getdefaultencoding", NULL);
    Py_DECREF(sys);
    if (!default_encoding) goto bad;
    default_encoding_c = PyBytes_AsString(default_encoding);
    if (!default_encoding_c) goto bad;
    if (strcmp(default_encoding_c, "ascii") == 0) {
        __Pyx_sys_getdefaultencoding_not_ascii = 0;
    } else {
        char ascii_chars[128];
        int c;
        for (c = 0; c < 128; c++) {
            ascii_chars[c] = (char) c;
        }
        __Pyx_sys_getdefaultencoding_not_ascii = 1;
        ascii_chars_u = PyUnicode_DecodeASCII(ascii_chars, 128, NULL);
        if (!ascii_chars_u) goto bad;
        ascii_chars_b = PyUnicode_AsEncodedString(ascii_chars_u, default_encoding_c, NULL);
        if (!ascii_chars_b || !PyBytes_Check(ascii_chars_b) || memcmp(ascii_chars, PyBytes_AS_STRING(ascii_chars_b), 128) != 0) {
            PyErr_Format(
                PyExc_ValueError,
                "This module compiled with c_string_encoding=ascii, but default encoding '%.200s' is not a superset of ascii.",
                default_encoding_c);
            goto bad;
        }
        Py_DECREF(ascii_chars_u);
        Py_DECREF(ascii_chars_b);
    }
    Py_DECREF(default_encoding);
    return 0;
bad:
    Py_XDECREF(default_encoding);
    Py_XDECREF(ascii_chars_u);
    Py_XDECREF(ascii_chars_b);
    return -1;
}
#endif
#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT && PY_MAJOR_VERSION >= 3
#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_DecodeUTF8(c_str, size, NULL)
#else
#define __Pyx_PyUnicode_FromStringAndSize(c_str, size) PyUnicode_Decode(c_str, size, __PYX_DEFAULT_STRING_ENCODING, NULL)
#if __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
#include <string.h>
static char* __PYX_DEFAULT_STRING_ENCODING;
static int __Pyx_init_sys_getdefaultencoding_params(void) {
    PyObject* sys;
    PyObject* default_encoding = NULL;
    char* default_encoding_c;
    sys = PyImport_ImportModule("sys");
    if (!sys) goto bad;
    default_encoding = PyObject_CallMethod(sys, (char*) (const char*) "getdefaultencoding", NULL);
    Py_DECREF(sys);
    if (!default_encoding) goto bad;
    default_encoding_c = PyBytes_AsString(default_encoding);
    if (!default_encoding_c) goto bad;
    __PYX_DEFAULT_STRING_ENCODING = (char*) malloc(strlen(default_encoding_c) + 1);
    if (!__PYX_DEFAULT_STRING_ENCODING) goto bad;
    strcpy(__PYX_DEFAULT_STRING_ENCODING, default_encoding_c);
    Py_DECREF(default_encoding);
    return 0;
bad:
    Py_XDECREF(default_encoding);
    return -1;
}
#endif
#endif


/* Test for GCC > 2.95 */
#if defined(__GNUC__)     && (__GNUC__ > 2 || (__GNUC__ == 2 && (__GNUC_MINOR__ > 95)))
  #define likely(x)   __builtin_expect(!!(x), 1)
  #define unlikely(x) __builtin_expect(!!(x), 0)
#else /* !__GNUC__ or GCC < 2.95 */
  #define likely(x)   (x)
  #define unlikely(x) (x)
#endif /* __GNUC__ */
static CYTHON_INLINE void __Pyx_pretend_to_initialize(void* ptr) { (void)ptr; }

#if !CYTHON_USE_MODULE_STATE
static PyObject *__pyx_m = NULL;
#endif
static int __pyx_lineno;
static int __pyx_clineno = 0;
static const char * __pyx_cfilenm = __FILE__;
static const char *__pyx_filename;

/* Header.proto */
#if !defined(CYTHON_CCOMPLEX)
  #if defined(__cplusplus)
    #define CYTHON_CCOMPLEX 1
  #elif (defined(_Complex_I) && !defined(_MSC_VER)) || ((defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) && !defined(__STDC_NO_COMPLEX__))
    #define CYTHON_CCOMPLEX 1
  #else
    #define CYTHON_CCOMPLEX 0
  #endif
#endif
#if CYTHON_CCOMPLEX
  #ifdef __cplusplus
    #include <complex>
  #else
    #include <complex.h>
  #endif
#endif
#if CYTHON_CCOMPLEX && !defined(__cplusplus) && defined(__sun__) && defined(__GNUC__)
  #undef _Complex_I
  #define _Complex_I 1.0fj
#endif

/* #### Code section: filename_table ### */

static const char *__pyx_f[] = {
  "src/wildboar/tree/_ctree.pyx",
  "<stringsource>",
  "__init__.cython-30.pxd",
  "type.pxd",
  "src/wildboar/utils/data.pxd",
  "src/wildboar/distance/_distance.pxd",
  "src/wildboar/transform/_feature.pxd",
  "src/wildboar/utils/misc.pxd",
};
/* #### Code section: utility_code_proto_before_types ### */
/* ForceInitThreads.proto */
#ifndef __PYX_FORCE_INIT_THREADS
  #define __PYX_FORCE_INIT_THREADS 0
#endif

/* NoFastGil.proto */
#define __Pyx_PyGILState_Ensure PyGILState_Ensure
#define __Pyx_PyGILState_Release PyGILState_Release
#define __Pyx_FastGIL_Remember()
#define __Pyx_FastGIL_Forget()
#define __Pyx_FastGilFuncInit()

/* #### Code section: numeric_typedefs ### */

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":730
 * # in Cython to enable them only on the right systems.
 * 
 * ctypedef npy_int8       int8_t             # <<<<<<<<<<<<<<
 * ctypedef npy_int16      int16_t
 * ctypedef npy_int32      int32_t
 */
typedef npy_int8 __pyx_t_5numpy_int8_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":731
 * 
 * ctypedef npy_int8       int8_t
 * ctypedef npy_int16      int16_t             # <<<<<<<<<<<<<<
 * ctypedef npy_int32      int32_t
 * ctypedef npy_int64      int64_t
 */
typedef npy_int16 __pyx_t_5numpy_int16_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":732
 * ctypedef npy_int8       int8_t
 * ctypedef npy_int16      int16_t
 * ctypedef npy_int32      int32_t             # <<<<<<<<<<<<<<
 * ctypedef npy_int64      int64_t
 * #ctypedef npy_int96      int96_t
 */
typedef npy_int32 __pyx_t_5numpy_int32_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":733
 * ctypedef npy_int16      int16_t
 * ctypedef npy_int32      int32_t
 * ctypedef npy_int64      int64_t             # <<<<<<<<<<<<<<
 * #ctypedef npy_int96      int96_t
 * #ctypedef npy_int128     int128_t
 */
typedef npy_int64 __pyx_t_5numpy_int64_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":737
 * #ctypedef npy_int128     int128_t
 * 
 * ctypedef npy_uint8      uint8_t             # <<<<<<<<<<<<<<
 * ctypedef npy_uint16     uint16_t
 * ctypedef npy_uint32     uint32_t
 */
typedef npy_uint8 __pyx_t_5numpy_uint8_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":738
 * 
 * ctypedef npy_uint8      uint8_t
 * ctypedef npy_uint16     uint16_t             # <<<<<<<<<<<<<<
 * ctypedef npy_uint32     uint32_t
 * ctypedef npy_uint64     uint64_t
 */
typedef npy_uint16 __pyx_t_5numpy_uint16_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":739
 * ctypedef npy_uint8      uint8_t
 * ctypedef npy_uint16     uint16_t
 * ctypedef npy_uint32     uint32_t             # <<<<<<<<<<<<<<
 * ctypedef npy_uint64     uint64_t
 * #ctypedef npy_uint96     uint96_t
 */
typedef npy_uint32 __pyx_t_5numpy_uint32_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":740
 * ctypedef npy_uint16     uint16_t
 * ctypedef npy_uint32     uint32_t
 * ctypedef npy_uint64     uint64_t             # <<<<<<<<<<<<<<
 * #ctypedef npy_uint96     uint96_t
 * #ctypedef npy_uint128    uint128_t
 */
typedef npy_uint64 __pyx_t_5numpy_uint64_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":744
 * #ctypedef npy_uint128    uint128_t
 * 
 * ctypedef npy_float32    float32_t             # <<<<<<<<<<<<<<
 * ctypedef npy_float64    float64_t
 * #ctypedef npy_float80    float80_t
 */
typedef npy_float32 __pyx_t_5numpy_float32_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":745
 * 
 * ctypedef npy_float32    float32_t
 * ctypedef npy_float64    float64_t             # <<<<<<<<<<<<<<
 * #ctypedef npy_float80    float80_t
 * #ctypedef npy_float128   float128_t
 */
typedef npy_float64 __pyx_t_5numpy_float64_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":754
 * # The int types are mapped a bit surprising --
 * # numpy.int corresponds to 'l' and numpy.long to 'q'
 * ctypedef npy_long       int_t             # <<<<<<<<<<<<<<
 * ctypedef npy_longlong   longlong_t
 * 
 */
typedef npy_long __pyx_t_5numpy_int_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":755
 * # numpy.int corresponds to 'l' and numpy.long to 'q'
 * ctypedef npy_long       int_t
 * ctypedef npy_longlong   longlong_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_ulong      uint_t
 */
typedef npy_longlong __pyx_t_5numpy_longlong_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":757
 * ctypedef npy_longlong   longlong_t
 * 
 * ctypedef npy_ulong      uint_t             # <<<<<<<<<<<<<<
 * ctypedef npy_ulonglong  ulonglong_t
 * 
 */
typedef npy_ulong __pyx_t_5numpy_uint_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":758
 * 
 * ctypedef npy_ulong      uint_t
 * ctypedef npy_ulonglong  ulonglong_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_intp       intp_t
 */
typedef npy_ulonglong __pyx_t_5numpy_ulonglong_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":760
 * ctypedef npy_ulonglong  ulonglong_t
 * 
 * ctypedef npy_intp       intp_t             # <<<<<<<<<<<<<<
 * ctypedef npy_uintp      uintp_t
 * 
 */
typedef npy_intp __pyx_t_5numpy_intp_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":761
 * 
 * ctypedef npy_intp       intp_t
 * ctypedef npy_uintp      uintp_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_double     float_t
 */
typedef npy_uintp __pyx_t_5numpy_uintp_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":763
 * ctypedef npy_uintp      uintp_t
 * 
 * ctypedef npy_double     float_t             # <<<<<<<<<<<<<<
 * ctypedef npy_double     double_t
 * ctypedef npy_longdouble longdouble_t
 */
typedef npy_double __pyx_t_5numpy_float_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":764
 * 
 * ctypedef npy_double     float_t
 * ctypedef npy_double     double_t             # <<<<<<<<<<<<<<
 * ctypedef npy_longdouble longdouble_t
 * 
 */
typedef npy_double __pyx_t_5numpy_double_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":765
 * ctypedef npy_double     float_t
 * ctypedef npy_double     double_t
 * ctypedef npy_longdouble longdouble_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_cfloat      cfloat_t
 */
typedef npy_longdouble __pyx_t_5numpy_longdouble_t;
/* #### Code section: complex_type_declarations ### */
/* Declarations.proto */
#if CYTHON_CCOMPLEX && (1) && (!0 || __cplusplus)
  #ifdef __cplusplus
    typedef ::std::complex< float > __pyx_t_float_complex;
  #else
    typedef float _Complex __pyx_t_float_complex;
  #endif
#else
    typedef struct { float real, imag; } __pyx_t_float_complex;
#endif
static CYTHON_INLINE __pyx_t_float_complex __pyx_t_float_complex_from_parts(float, float);

/* Declarations.proto */
#if CYTHON_CCOMPLEX && (1) && (!0 || __cplusplus)
  #ifdef __cplusplus
    typedef ::std::complex< double > __pyx_t_double_complex;
  #else
    typedef double _Complex __pyx_t_double_complex;
  #endif
#else
    typedef struct { double real, imag; } __pyx_t_double_complex;
#endif
static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(double, double);

/* #### Code section: type_declarations ### */

/*--- Type declarations ---*/
struct __pyx_obj_8wildboar_5utils_4data_Dataset;
struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure;
struct __pyx_obj_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure;
struct __pyx_obj_8wildboar_8distance_9_distance_DistanceMeasure;
struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer;
struct __pyx_obj_8wildboar_5utils_4misc_CList;
struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer;
struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer;
struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion;
struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion;
struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion;
struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion;
struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion;
struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion;
struct __pyx_obj_8wildboar_4tree_6_ctree_Tree;
struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder;
struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":767
 * ctypedef npy_longdouble longdouble_t
 * 
 * ctypedef npy_cfloat      cfloat_t             # <<<<<<<<<<<<<<
 * ctypedef npy_cdouble     cdouble_t
 * ctypedef npy_clongdouble clongdouble_t
 */
typedef npy_cfloat __pyx_t_5numpy_cfloat_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":768
 * 
 * ctypedef npy_cfloat      cfloat_t
 * ctypedef npy_cdouble     cdouble_t             # <<<<<<<<<<<<<<
 * ctypedef npy_clongdouble clongdouble_t
 * 
 */
typedef npy_cdouble __pyx_t_5numpy_cdouble_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":769
 * ctypedef npy_cfloat      cfloat_t
 * ctypedef npy_cdouble     cdouble_t
 * ctypedef npy_clongdouble clongdouble_t             # <<<<<<<<<<<<<<
 * 
 * ctypedef npy_cdouble     complex_t
 */
typedef npy_clongdouble __pyx_t_5numpy_clongdouble_t;

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":771
 * ctypedef npy_clongdouble clongdouble_t
 * 
 * ctypedef npy_cdouble     complex_t             # <<<<<<<<<<<<<<
 * 
 * cdef inline object PyArray_MultiIterNew1(a):
 */
typedef npy_cdouble __pyx_t_5numpy_complex_t;
struct __pyx_t_8wildboar_8distance_9_distance_SubsequenceView;
struct __pyx_t_8wildboar_8distance_9_distance_Subsequence;
struct __pyx_opt_args_8wildboar_8distance_9_distance_26SubsequenceDistanceMeasure_transient_distance;
struct __pyx_opt_args_8wildboar_8distance_9_distance_26SubsequenceDistanceMeasure_persistent_distance;
struct __pyx_opt_args_8wildboar_8distance_9_distance_26SubsequenceDistanceMeasure__distance;

/* "distance/_distance.pxd":11
 * 
 * 
 * cdef struct SubsequenceView:             # <<<<<<<<<<<<<<
 *     Py_ssize_t index  # the index of the shapelet sample
 *     Py_ssize_t start  # the start position
 */
struct __pyx_t_8wildboar_8distance_9_distance_SubsequenceView {
  Py_ssize_t index;
  Py_ssize_t start;
  Py_ssize_t length;
  Py_ssize_t dim;
  double mean;
  double std;
  void *extra;
};

/* "distance/_distance.pxd":21
 * 
 * 
 * cdef struct Subsequence:             # <<<<<<<<<<<<<<
 *     Py_ssize_t length
 *     Py_ssize_t dim
 */
struct __pyx_t_8wildboar_8distance_9_distance_Subsequence {
  Py_ssize_t length;
  Py_ssize_t dim;
  double mean;
  double std;
  int ts_index;
  int ts_start;
  double *data;
  void *extra;
};

/* "distance/_distance.pxd":67
 *     )
 * 
 *     cdef double transient_distance(             # <<<<<<<<<<<<<<
 *         self,
 *         SubsequenceView *v,
 */
struct __pyx_opt_args_8wildboar_8distance_9_distance_26SubsequenceDistanceMeasure_transient_distance {
  int __pyx_n;
  Py_ssize_t *return_index;
};

/* "distance/_distance.pxd":75
 *     ) nogil
 * 
 *     cdef double persistent_distance(             # <<<<<<<<<<<<<<
 *         self,
 *         Subsequence *s,
 */
struct __pyx_opt_args_8wildboar_8distance_9_distance_26SubsequenceDistanceMeasure_persistent_distance {
  int __pyx_n;
  Py_ssize_t *return_index;
};

/* "distance/_distance.pxd":103
 *     ) nogil
 * 
 *     cdef double _distance(             # <<<<<<<<<<<<<<
 *         self,
 *         double *s,
 */
struct __pyx_opt_args_8wildboar_8distance_9_distance_26SubsequenceDistanceMeasure__distance {
  int __pyx_n;
  Py_ssize_t *return_index;
};
struct __pyx_t_8wildboar_9transform_8_feature_Feature;

/* "transform/_feature.pxd":9
 * 
 * 
 * cdef struct Feature:             # <<<<<<<<<<<<<<
 *     Py_ssize_t dim       # the dimension of the feature -1 for undefined
 *     void* feature        # the feature value
 */
struct __pyx_t_8wildboar_9transform_8_feature_Feature {
  Py_ssize_t dim;
  void *feature;
};
struct __pyx_t_8wildboar_5utils_4rand_VoseRand;

/* "utils/rand.pxd":6
 * # License: BSD 3 clause
 * 
 * cdef enum:             # <<<<<<<<<<<<<<
 *     RAND_R_MAX = 2147483647
 * 
 */
enum  {
  __pyx_e_8wildboar_5utils_4rand_RAND_R_MAX = 0x7FFFFFFF
};

/* "utils/rand.pxd":9
 *     RAND_R_MAX = 2147483647
 * 
 * cdef struct VoseRand:             # <<<<<<<<<<<<<<
 *     Py_ssize_t n
 *     Py_ssize_t *alias
 */
struct __pyx_t_8wildboar_5utils_4rand_VoseRand {
  Py_ssize_t n;
  Py_ssize_t *alias;
  double *prob;
};
struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint;

/* "wildboar/tree/_ctree.pyx":32
 * 
 * 
 * cdef struct SplitPoint:             # <<<<<<<<<<<<<<
 *     Py_ssize_t split_point
 *     double threshold
 */
struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint {
  Py_ssize_t split_point;
  double threshold;
  double impurity_improvement;
  double impurity_left;
  double impurity_right;
  struct __pyx_t_8wildboar_9transform_8_feature_Feature feature;
};

/* "wildboar/utils/data.pxd":9
 * 
 * 
 * cdef class Dataset:             # <<<<<<<<<<<<<<
 *     cdef readonly Py_ssize_t n_samples  # the number of samples
 *     cdef readonly Py_ssize_t n_timestep  # the number of timesteps
 */
struct __pyx_obj_8wildboar_5utils_4data_Dataset {
  PyObject_HEAD
  struct __pyx_vtabstruct_8wildboar_5utils_4data_Dataset *__pyx_vtab;
  Py_ssize_t n_samples;
  Py_ssize_t n_timestep;
  Py_ssize_t n_dims;
  double *data;
  Py_ssize_t sample_stride;
  Py_ssize_t dim_stride;
};


/* "distance/_distance.pxd":31
 *     void *extra
 * 
 * cdef class SubsequenceDistanceMeasure:             # <<<<<<<<<<<<<<
 * 
 *     cdef int reset(self, Dataset dataset) nogil
 */
struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure {
  PyObject_HEAD
  struct __pyx_vtabstruct_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *__pyx_vtab;
};


/* "distance/_distance.pxd":124
 * 
 * 
 * cdef class ScaledSubsequenceDistanceMeasure(SubsequenceDistanceMeasure):             # <<<<<<<<<<<<<<
 *     pass
 * 
 */
struct __pyx_obj_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure {
  struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure __pyx_base;
};


/* "distance/_distance.pxd":128
 * 
 * 
 * cdef class DistanceMeasure:             # <<<<<<<<<<<<<<
 * 
 *     cdef int reset(self, Dataset x, Dataset y) nogil
 */
struct __pyx_obj_8wildboar_8distance_9_distance_DistanceMeasure {
  PyObject_HEAD
  struct __pyx_vtabstruct_8wildboar_8distance_9_distance_DistanceMeasure *__pyx_vtab;
};


/* "transform/_feature.pxd":14
 * 
 * 
 * cdef class FeatureEngineer:             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t reset(self, Dataset td) nogil
 */
struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer {
  PyObject_HEAD
  struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *__pyx_vtab;
};


/* "utils/misc.pxd":9
 * 
 * 
 * cdef class CList:             # <<<<<<<<<<<<<<
 *     cdef list py_list
 *     cdef readonly Py_ssize_t size
 */
struct __pyx_obj_8wildboar_5utils_4misc_CList {
  PyObject_HEAD
  struct __pyx_vtabstruct_8wildboar_5utils_4misc_CList *__pyx_vtab;
  PyObject *py_list;
  Py_ssize_t size;
};


/* "wildboar/tree/_ctree.pyx":41
 * 
 * 
 * cdef class TreeFeatureEngineer:             # <<<<<<<<<<<<<<
 *     cdef FeatureEngineer feature_engineer
 * 
 */
struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer {
  PyObject_HEAD
  struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_vtab;
  struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *feature_engineer;
};


/* "wildboar/tree/_ctree.pyx":130
 * 
 * 
 * cdef class DynamicTreeFeatureEngineer(TreeFeatureEngineer):             # <<<<<<<<<<<<<<
 * 
 *     cdef double alpha
 */
struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer {
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer __pyx_base;
  double alpha;
};


/* "wildboar/tree/_ctree.pyx":150
 * 
 * 
 * cdef class Criterion:             # <<<<<<<<<<<<<<
 * 
 *     cdef double weighted_n_left
 */
struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion {
  PyObject_HEAD
  struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion *__pyx_vtab;
  double weighted_n_left;
  double weighted_n_right;
  double weighted_n_total;
  Py_ssize_t start;
  Py_ssize_t end;
  Py_ssize_t *samples;
  double *sample_weight;
};


/* "wildboar/tree/_ctree.pyx":204
 *         pass
 * 
 * cdef class ClassificationCriterion(Criterion):             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t *labels
 */
struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion {
  struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion __pyx_base;
  Py_ssize_t *labels;
  Py_ssize_t label_stride;
  Py_ssize_t n_labels;
  double *sum_left;
  double *sum_right;
  double *sum_total;
};


/* "wildboar/tree/_ctree.pyx":294
 *             tree.set_leaf_value(node_id, i, prob)
 * 
 * cdef class GiniCriterion(ClassificationCriterion):             # <<<<<<<<<<<<<<
 * 
 *     cdef double impurity(self) nogil:
 */
struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion {
  struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion __pyx_base;
};


/* "wildboar/tree/_ctree.pyx":322
 *         right[0] = 1 - sq_right / (self.weighted_n_right * self.weighted_n_right)
 * 
 * cdef class EntropyCriterion(ClassificationCriterion):             # <<<<<<<<<<<<<<
 * 
 *     cdef double impurity(self) nogil:
 */
struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion {
  struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion __pyx_base;
};


/* "wildboar/tree/_ctree.pyx":353
 *                 right[0] -= v * log2(v)
 * 
 * cdef class RegressionCriterion(Criterion):             # <<<<<<<<<<<<<<
 *     cdef double sum_left
 *     cdef double sum_right
 */
struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion {
  struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion __pyx_base;
  double sum_left;
  double sum_right;
  double sum_total;
  double sum_sq_total;
  double *labels;
  Py_ssize_t label_stride;
  Py_ssize_t pos;
};


/* "wildboar/tree/_ctree.pyx":436
 *         tree.set_leaf_value(node_id, 0, self.sum_total / self.weighted_n_total)
 * 
 * cdef class MSECriterion(RegressionCriterion):             # <<<<<<<<<<<<<<
 * 
 *     cdef double proxy_impurity(self) nogil:
 */
struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion {
  struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion __pyx_base;
};


/* "wildboar/tree/_ctree.pyx":514
 * 
 * 
 * cdef class Tree:             # <<<<<<<<<<<<<<
 * 
 *     cdef TreeFeatureEngineer feature_engineer
 */
struct __pyx_obj_8wildboar_4tree_6_ctree_Tree {
  PyObject_HEAD
  struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Tree *__pyx_vtab;
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *feature_engineer;
  Py_ssize_t _max_depth;
  Py_ssize_t _capacity;
  Py_ssize_t _n_labels;
  Py_ssize_t _node_count;
  Py_ssize_t *_left;
  Py_ssize_t *_right;
  struct __pyx_t_8wildboar_9transform_8_feature_Feature **_features;
  double *_thresholds;
  double *_impurity;
  double *_values;
  double *_n_weighted_node_samples;
  Py_ssize_t *_n_node_samples;
};


/* "wildboar/tree/_ctree.pyx":841
 *         return 0
 * 
 * cdef class TreeBuilder:             # <<<<<<<<<<<<<<
 * 
 *     # hyper-parameters
 */
struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder {
  PyObject_HEAD
  struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_vtab;
  Py_ssize_t max_depth;
  Py_ssize_t min_sample_split;
  Py_ssize_t min_sample_leaf;
  double min_impurity_decrease;
  Py_ssize_t current_node_id;
  Py_ssize_t label_stride;
  double *sample_weights;
  struct __pyx_obj_8wildboar_5utils_4data_Dataset *td;
  Py_ssize_t n_samples;
  double n_weighted_samples;
  Py_ssize_t *samples;
  Py_ssize_t *samples_buffer;
  double *feature_buffer;
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *feature_engineer;
  struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *criterion;
  struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *tree;
  size_t random_seed;
};


/* "wildboar/tree/_ctree.pyx":1231
 *                         best_threshold[0] = self.feature_buffer[i - 1]
 * 
 * cdef class ExtraTreeBuilder(TreeBuilder):             # <<<<<<<<<<<<<<
 * 
 *     cdef void _partition_feature_buffer(
 */
struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder {
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder __pyx_base;
};



/* "wildboar/utils/data.pxd":9
 * 
 * 
 * cdef class Dataset:             # <<<<<<<<<<<<<<
 *     cdef readonly Py_ssize_t n_samples  # the number of samples
 *     cdef readonly Py_ssize_t n_timestep  # the number of timesteps
 */

struct __pyx_vtabstruct_8wildboar_5utils_4data_Dataset {
  double *(*get_sample)(struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t, Py_ssize_t);
};
static struct __pyx_vtabstruct_8wildboar_5utils_4data_Dataset *__pyx_vtabptr_8wildboar_5utils_4data_Dataset;


/* "distance/_distance.pxd":31
 *     void *extra
 * 
 * cdef class SubsequenceDistanceMeasure:             # <<<<<<<<<<<<<<
 * 
 *     cdef int reset(self, Dataset dataset) nogil
 */

struct __pyx_vtabstruct_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure {
  int (*reset)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *);
  int (*init_transient)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, struct __pyx_t_8wildboar_8distance_9_distance_SubsequenceView *, Py_ssize_t, Py_ssize_t, Py_ssize_t, Py_ssize_t);
  int (*init_persistent)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, struct __pyx_t_8wildboar_8distance_9_distance_SubsequenceView *, struct __pyx_t_8wildboar_8distance_9_distance_Subsequence *);
  int (*free_transient)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, struct __pyx_t_8wildboar_8distance_9_distance_SubsequenceView *);
  int (*free_persistent)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, struct __pyx_t_8wildboar_8distance_9_distance_Subsequence *);
  int (*from_array)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, struct __pyx_t_8wildboar_8distance_9_distance_Subsequence *, PyObject *);
  PyObject *(*to_array)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, struct __pyx_t_8wildboar_8distance_9_distance_Subsequence *);
  double (*transient_distance)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, struct __pyx_t_8wildboar_8distance_9_distance_SubsequenceView *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t, struct __pyx_opt_args_8wildboar_8distance_9_distance_26SubsequenceDistanceMeasure_transient_distance *__pyx_optional_args);
  double (*persistent_distance)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, struct __pyx_t_8wildboar_8distance_9_distance_Subsequence *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t, struct __pyx_opt_args_8wildboar_8distance_9_distance_26SubsequenceDistanceMeasure_persistent_distance *__pyx_optional_args);
  Py_ssize_t (*transient_matches)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, struct __pyx_t_8wildboar_8distance_9_distance_SubsequenceView *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t, double, double **, Py_ssize_t **);
  Py_ssize_t (*persistent_matches)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, struct __pyx_t_8wildboar_8distance_9_distance_Subsequence *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t, double, double **, Py_ssize_t **);
  double (*_distance)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, double *, Py_ssize_t, double *, Py_ssize_t, struct __pyx_opt_args_8wildboar_8distance_9_distance_26SubsequenceDistanceMeasure__distance *__pyx_optional_args);
  Py_ssize_t (*_matches)(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *, double *, Py_ssize_t, double *, Py_ssize_t, double, double **, Py_ssize_t **);
};
static struct __pyx_vtabstruct_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure *__pyx_vtabptr_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure;


/* "distance/_distance.pxd":124
 * 
 * 
 * cdef class ScaledSubsequenceDistanceMeasure(SubsequenceDistanceMeasure):             # <<<<<<<<<<<<<<
 *     pass
 * 
 */

struct __pyx_vtabstruct_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure {
  struct __pyx_vtabstruct_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure __pyx_base;
};
static struct __pyx_vtabstruct_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure *__pyx_vtabptr_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure;


/* "distance/_distance.pxd":128
 * 
 * 
 * cdef class DistanceMeasure:             # <<<<<<<<<<<<<<
 * 
 *     cdef int reset(self, Dataset x, Dataset y) nogil
 */

struct __pyx_vtabstruct_8wildboar_8distance_9_distance_DistanceMeasure {
  int (*reset)(struct __pyx_obj_8wildboar_8distance_9_distance_DistanceMeasure *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *);
  double (*distance)(struct __pyx_obj_8wildboar_8distance_9_distance_DistanceMeasure *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t, Py_ssize_t);
  double (*_distance)(struct __pyx_obj_8wildboar_8distance_9_distance_DistanceMeasure *, double *, Py_ssize_t, double *, Py_ssize_t);
};
static struct __pyx_vtabstruct_8wildboar_8distance_9_distance_DistanceMeasure *__pyx_vtabptr_8wildboar_8distance_9_distance_DistanceMeasure;


/* "transform/_feature.pxd":14
 * 
 * 
 * cdef class FeatureEngineer:             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t reset(self, Dataset td) nogil
 */

struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer {
  Py_ssize_t (*reset)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *);
  Py_ssize_t (*get_n_features)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *);
  Py_ssize_t (*get_n_outputs)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *);
  Py_ssize_t (*next_feature)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, Py_ssize_t, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t *, Py_ssize_t, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, size_t *);
  Py_ssize_t (*init_persistent_feature)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *);
  Py_ssize_t (*free_transient_feature)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *);
  Py_ssize_t (*free_persistent_feature)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *);
  double (*transient_feature_value)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t);
  Py_ssize_t (*transient_feature_fill)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t, Py_ssize_t);
  double (*persistent_feature_value)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t);
  Py_ssize_t (*persistent_feature_fill)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t, Py_ssize_t);
  void (*transient_feature_values)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t *, Py_ssize_t, double *);
  void (*persistent_feature_values)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t *, Py_ssize_t, double *);
  PyObject *(*persistent_feature_to_object)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *);
  Py_ssize_t (*persistent_feature_from_object)(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *, PyObject *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *);
};
static struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *__pyx_vtabptr_8wildboar_9transform_8_feature_FeatureEngineer;


/* "utils/misc.pxd":9
 * 
 * 
 * cdef class CList:             # <<<<<<<<<<<<<<
 *     cdef list py_list
 *     cdef readonly Py_ssize_t size
 */

struct __pyx_vtabstruct_8wildboar_5utils_4misc_CList {
  void *(*get)(struct __pyx_obj_8wildboar_5utils_4misc_CList *, Py_ssize_t);
};
static struct __pyx_vtabstruct_8wildboar_5utils_4misc_CList *__pyx_vtabptr_8wildboar_5utils_4misc_CList;


/* "wildboar/tree/_ctree.pyx":41
 * 
 * 
 * cdef class TreeFeatureEngineer:             # <<<<<<<<<<<<<<
 *     cdef FeatureEngineer feature_engineer
 * 
 */

struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer {
  Py_ssize_t (*reset)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *);
  Py_ssize_t (*get_n_features)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t);
  Py_ssize_t (*next_feature)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, Py_ssize_t, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t *, Py_ssize_t, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, size_t *);
  Py_ssize_t (*init_persistent_feature)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *);
  Py_ssize_t (*free_transient_feature)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *);
  Py_ssize_t (*free_persistent_feature)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *);
  double (*transient_feature_value)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t);
  double (*persistent_feature_value)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t);
  void (*transient_feature_values)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t *, Py_ssize_t, double *);
  void (*persistent_feature_values)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t *, Py_ssize_t, double *);
  PyObject *(*persistent_feature_to_object)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *);
  Py_ssize_t (*persistent_feature_from_object)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, PyObject *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *);
};
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_vtabptr_8wildboar_4tree_6_ctree_TreeFeatureEngineer;


/* "wildboar/tree/_ctree.pyx":130
 * 
 * 
 * cdef class DynamicTreeFeatureEngineer(TreeFeatureEngineer):             # <<<<<<<<<<<<<<
 * 
 *     cdef double alpha
 */

struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer {
  struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer __pyx_base;
};
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer *__pyx_vtabptr_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer;


/* "wildboar/tree/_ctree.pyx":150
 * 
 * 
 * cdef class Criterion:             # <<<<<<<<<<<<<<
 * 
 *     cdef double weighted_n_left
 */

struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion {
  void (*init)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, Py_ssize_t, Py_ssize_t, Py_ssize_t *, double *);
  void (*reset)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *);
  void (*update)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, Py_ssize_t, Py_ssize_t);
  double (*proxy_impurity)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *);
  double (*impurity)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *);
  void (*child_impurity)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, double *, double *);
  double (*impurity_improvement)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, double, double, double, double);
  void (*leaf_value)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *, Py_ssize_t);
};
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion *__pyx_vtabptr_8wildboar_4tree_6_ctree_Criterion;


/* "wildboar/tree/_ctree.pyx":204
 *         pass
 * 
 * cdef class ClassificationCriterion(Criterion):             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t *labels
 */

struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_ClassificationCriterion {
  struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion __pyx_base;
};
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_vtabptr_8wildboar_4tree_6_ctree_ClassificationCriterion;


/* "wildboar/tree/_ctree.pyx":294
 *             tree.set_leaf_value(node_id, i, prob)
 * 
 * cdef class GiniCriterion(ClassificationCriterion):             # <<<<<<<<<<<<<<
 * 
 *     cdef double impurity(self) nogil:
 */

struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_GiniCriterion {
  struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_ClassificationCriterion __pyx_base;
};
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_GiniCriterion *__pyx_vtabptr_8wildboar_4tree_6_ctree_GiniCriterion;


/* "wildboar/tree/_ctree.pyx":322
 *         right[0] = 1 - sq_right / (self.weighted_n_right * self.weighted_n_right)
 * 
 * cdef class EntropyCriterion(ClassificationCriterion):             # <<<<<<<<<<<<<<
 * 
 *     cdef double impurity(self) nogil:
 */

struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_EntropyCriterion {
  struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_ClassificationCriterion __pyx_base;
};
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_EntropyCriterion *__pyx_vtabptr_8wildboar_4tree_6_ctree_EntropyCriterion;


/* "wildboar/tree/_ctree.pyx":353
 *                 right[0] -= v * log2(v)
 * 
 * cdef class RegressionCriterion(Criterion):             # <<<<<<<<<<<<<<
 *     cdef double sum_left
 *     cdef double sum_right
 */

struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_RegressionCriterion {
  struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion __pyx_base;
};
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_vtabptr_8wildboar_4tree_6_ctree_RegressionCriterion;


/* "wildboar/tree/_ctree.pyx":436
 *         tree.set_leaf_value(node_id, 0, self.sum_total / self.weighted_n_total)
 * 
 * cdef class MSECriterion(RegressionCriterion):             # <<<<<<<<<<<<<<
 * 
 *     cdef double proxy_impurity(self) nogil:
 */

struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_MSECriterion {
  struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_RegressionCriterion __pyx_base;
};
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_MSECriterion *__pyx_vtabptr_8wildboar_4tree_6_ctree_MSECriterion;


/* "wildboar/tree/_ctree.pyx":514
 * 
 * 
 * cdef class Tree:             # <<<<<<<<<<<<<<
 * 
 *     cdef TreeFeatureEngineer feature_engineer
 */

struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Tree {
  Py_ssize_t (*add_leaf_node)(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *, Py_ssize_t, int, Py_ssize_t, double);
  void (*set_leaf_value)(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *, Py_ssize_t, Py_ssize_t, double);
  Py_ssize_t (*add_branch_node)(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *, Py_ssize_t, int, Py_ssize_t, double, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, double, double);
  Py_ssize_t (*_increase_capacity)(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *);
};
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Tree *__pyx_vtabptr_8wildboar_4tree_6_ctree_Tree;


/* "wildboar/tree/_ctree.pyx":841
 *         return 0
 * 
 * cdef class TreeBuilder:             # <<<<<<<<<<<<<<
 * 
 *     # hyper-parameters
 */

struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder {
  Py_ssize_t (*build_tree)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, int __pyx_skip_dispatch);
  Py_ssize_t (*new_leaf_node)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, Py_ssize_t, Py_ssize_t, Py_ssize_t, int);
  Py_ssize_t (*new_branch_node)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, Py_ssize_t, Py_ssize_t, struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, Py_ssize_t, int);
  Py_ssize_t (*_build_tree)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, Py_ssize_t, Py_ssize_t, Py_ssize_t, Py_ssize_t, int, double, Py_ssize_t *);
  struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint (*_split)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, Py_ssize_t, Py_ssize_t, Py_ssize_t, double);
  void (*_partition_feature_buffer)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, Py_ssize_t, Py_ssize_t, Py_ssize_t *, double *, double *);
};
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_vtabptr_8wildboar_4tree_6_ctree_TreeBuilder;


/* "wildboar/tree/_ctree.pyx":1231
 *                         best_threshold[0] = self.feature_buffer[i - 1]
 * 
 * cdef class ExtraTreeBuilder(TreeBuilder):             # <<<<<<<<<<<<<<
 * 
 *     cdef void _partition_feature_buffer(
 */

struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_ExtraTreeBuilder {
  struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder __pyx_base;
};
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_ExtraTreeBuilder *__pyx_vtabptr_8wildboar_4tree_6_ctree_ExtraTreeBuilder;
/* #### Code section: utility_code_proto ### */

/* --- Runtime support code (head) --- */
/* Refnanny.proto */
#ifndef CYTHON_REFNANNY
  #define CYTHON_REFNANNY 0
#endif
#if CYTHON_REFNANNY
  typedef struct {
    void (*INCREF)(void*, PyObject*, Py_ssize_t);
    void (*DECREF)(void*, PyObject*, Py_ssize_t);
    void (*GOTREF)(void*, PyObject*, Py_ssize_t);
    void (*GIVEREF)(void*, PyObject*, Py_ssize_t);
    void* (*SetupContext)(const char*, Py_ssize_t, const char*);
    void (*FinishContext)(void**);
  } __Pyx_RefNannyAPIStruct;
  static __Pyx_RefNannyAPIStruct *__Pyx_RefNanny = NULL;
  static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname);
  #define __Pyx_RefNannyDeclarations void *__pyx_refnanny = NULL;
#ifdef WITH_THREAD
  #define __Pyx_RefNannySetupContext(name, acquire_gil)\
          if (acquire_gil) {\
              PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();\
              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), (__LINE__), (__FILE__));\
              PyGILState_Release(__pyx_gilstate_save);\
          } else {\
              __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), (__LINE__), (__FILE__));\
          }
  #define __Pyx_RefNannyFinishContextNogil() {\
              PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();\
              __Pyx_RefNannyFinishContext();\
              PyGILState_Release(__pyx_gilstate_save);\
          }
#else
  #define __Pyx_RefNannySetupContext(name, acquire_gil)\
          __pyx_refnanny = __Pyx_RefNanny->SetupContext((name), (__LINE__), (__FILE__))
  #define __Pyx_RefNannyFinishContextNogil() __Pyx_RefNannyFinishContext()
#endif
  #define __Pyx_RefNannyFinishContextNogil() {\
              PyGILState_STATE __pyx_gilstate_save = PyGILState_Ensure();\
              __Pyx_RefNannyFinishContext();\
              PyGILState_Release(__pyx_gilstate_save);\
          }
  #define __Pyx_RefNannyFinishContext()\
          __Pyx_RefNanny->FinishContext(&__pyx_refnanny)
  #define __Pyx_INCREF(r)  __Pyx_RefNanny->INCREF(__pyx_refnanny, (PyObject *)(r), (__LINE__))
  #define __Pyx_DECREF(r)  __Pyx_RefNanny->DECREF(__pyx_refnanny, (PyObject *)(r), (__LINE__))
  #define __Pyx_GOTREF(r)  __Pyx_RefNanny->GOTREF(__pyx_refnanny, (PyObject *)(r), (__LINE__))
  #define __Pyx_GIVEREF(r) __Pyx_RefNanny->GIVEREF(__pyx_refnanny, (PyObject *)(r), (__LINE__))
  #define __Pyx_XINCREF(r)  do { if((r) == NULL); else {__Pyx_INCREF(r); }} while(0)
  #define __Pyx_XDECREF(r)  do { if((r) == NULL); else {__Pyx_DECREF(r); }} while(0)
  #define __Pyx_XGOTREF(r)  do { if((r) == NULL); else {__Pyx_GOTREF(r); }} while(0)
  #define __Pyx_XGIVEREF(r) do { if((r) == NULL); else {__Pyx_GIVEREF(r);}} while(0)
#else
  #define __Pyx_RefNannyDeclarations
  #define __Pyx_RefNannySetupContext(name, acquire_gil)
  #define __Pyx_RefNannyFinishContextNogil()
  #define __Pyx_RefNannyFinishContext()
  #define __Pyx_INCREF(r) Py_INCREF(r)
  #define __Pyx_DECREF(r) Py_DECREF(r)
  #define __Pyx_GOTREF(r)
  #define __Pyx_GIVEREF(r)
  #define __Pyx_XINCREF(r) Py_XINCREF(r)
  #define __Pyx_XDECREF(r) Py_XDECREF(r)
  #define __Pyx_XGOTREF(r)
  #define __Pyx_XGIVEREF(r)
#endif
#define __Pyx_Py_XDECREF_SET(r, v) do {\
        PyObject *tmp = (PyObject *) r;\
        r = v; Py_XDECREF(tmp);\
    } while (0)
#define __Pyx_XDECREF_SET(r, v) do {\
        PyObject *tmp = (PyObject *) r;\
        r = v; __Pyx_XDECREF(tmp);\
    } while (0)
#define __Pyx_DECREF_SET(r, v) do {\
        PyObject *tmp = (PyObject *) r;\
        r = v; __Pyx_DECREF(tmp);\
    } while (0)
#define __Pyx_CLEAR(r)    do { PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);} while(0)
#define __Pyx_XCLEAR(r)   do { if((r) != NULL) {PyObject* tmp = ((PyObject*)(r)); r = NULL; __Pyx_DECREF(tmp);}} while(0)

/* PyErrExceptionMatches.proto */
#if CYTHON_FAST_THREAD_STATE
#define __Pyx_PyErr_ExceptionMatches(err) __Pyx_PyErr_ExceptionMatchesInState(__pyx_tstate, err)
static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err);
#else
#define __Pyx_PyErr_ExceptionMatches(err)  PyErr_ExceptionMatches(err)
#endif

/* PyThreadStateGet.proto */
#if CYTHON_FAST_THREAD_STATE
#define __Pyx_PyThreadState_declare  PyThreadState *__pyx_tstate;
#define __Pyx_PyThreadState_assign  __pyx_tstate = __Pyx_PyThreadState_Current;
#if PY_VERSION_HEX >= 0x030C00A6
#define __Pyx_PyErr_Occurred()  (__pyx_tstate->current_exception != NULL)
#define __Pyx_PyErr_CurrentExceptionType()  (__pyx_tstate->current_exception ? (PyObject*) Py_TYPE(__pyx_tstate->current_exception) : (PyObject*) NULL)
#else
#define __Pyx_PyErr_Occurred()  (__pyx_tstate->curexc_type != NULL)
#define __Pyx_PyErr_CurrentExceptionType()  (__pyx_tstate->curexc_type)
#endif
#else
#define __Pyx_PyThreadState_declare
#define __Pyx_PyThreadState_assign
#define __Pyx_PyErr_Occurred()  (PyErr_Occurred() != NULL)
#define __Pyx_PyErr_CurrentExceptionType()  PyErr_Occurred()
#endif

/* PyErrFetchRestore.proto */
#if CYTHON_FAST_THREAD_STATE
#define __Pyx_PyErr_Clear() __Pyx_ErrRestore(NULL, NULL, NULL)
#define __Pyx_ErrRestoreWithState(type, value, tb)  __Pyx_ErrRestoreInState(PyThreadState_GET(), type, value, tb)
#define __Pyx_ErrFetchWithState(type, value, tb)    __Pyx_ErrFetchInState(PyThreadState_GET(), type, value, tb)
#define __Pyx_ErrRestore(type, value, tb)  __Pyx_ErrRestoreInState(__pyx_tstate, type, value, tb)
#define __Pyx_ErrFetch(type, value, tb)    __Pyx_ErrFetchInState(__pyx_tstate, type, value, tb)
static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb);
static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030C00A6
#define __Pyx_PyErr_SetNone(exc) (Py_INCREF(exc), __Pyx_ErrRestore((exc), NULL, NULL))
#else
#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
#endif
#else
#define __Pyx_PyErr_Clear() PyErr_Clear()
#define __Pyx_PyErr_SetNone(exc) PyErr_SetNone(exc)
#define __Pyx_ErrRestoreWithState(type, value, tb)  PyErr_Restore(type, value, tb)
#define __Pyx_ErrFetchWithState(type, value, tb)  PyErr_Fetch(type, value, tb)
#define __Pyx_ErrRestoreInState(tstate, type, value, tb)  PyErr_Restore(type, value, tb)
#define __Pyx_ErrFetchInState(tstate, type, value, tb)  PyErr_Fetch(type, value, tb)
#define __Pyx_ErrRestore(type, value, tb)  PyErr_Restore(type, value, tb)
#define __Pyx_ErrFetch(type, value, tb)  PyErr_Fetch(type, value, tb)
#endif

/* PyObjectGetAttrStr.proto */
#if CYTHON_USE_TYPE_SLOTS
static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name);
#else
#define __Pyx_PyObject_GetAttrStr(o,n) PyObject_GetAttr(o,n)
#endif

/* PyObjectGetAttrStrNoError.proto */
static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name);

/* GetBuiltinName.proto */
static PyObject *__Pyx_GetBuiltinName(PyObject *name);

/* GetTopmostException.proto */
#if CYTHON_USE_EXC_INFO_STACK && CYTHON_FAST_THREAD_STATE
static _PyErr_StackItem * __Pyx_PyErr_GetTopmostException(PyThreadState *tstate);
#endif

/* SaveResetException.proto */
#if CYTHON_FAST_THREAD_STATE
#define __Pyx_ExceptionSave(type, value, tb)  __Pyx__ExceptionSave(__pyx_tstate, type, value, tb)
static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
#define __Pyx_ExceptionReset(type, value, tb)  __Pyx__ExceptionReset(__pyx_tstate, type, value, tb)
static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb);
#else
#define __Pyx_ExceptionSave(type, value, tb)   PyErr_GetExcInfo(type, value, tb)
#define __Pyx_ExceptionReset(type, value, tb)  PyErr_SetExcInfo(type, value, tb)
#endif

/* GetException.proto */
#if CYTHON_FAST_THREAD_STATE
#define __Pyx_GetException(type, value, tb)  __Pyx__GetException(__pyx_tstate, type, value, tb)
static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb);
#else
static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb);
#endif

/* PyObjectCall.proto */
#if CYTHON_COMPILING_IN_CPYTHON
static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw);
#else
#define __Pyx_PyObject_Call(func, arg, kw) PyObject_Call(func, arg, kw)
#endif

/* RaiseException.proto */
static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause);

/* TupleAndListFromArray.proto */
#if CYTHON_COMPILING_IN_CPYTHON
static CYTHON_INLINE PyObject* __Pyx_PyList_FromArray(PyObject *const *src, Py_ssize_t n);
static CYTHON_INLINE PyObject* __Pyx_PyTuple_FromArray(PyObject *const *src, Py_ssize_t n);
#endif

/* IncludeStringH.proto */
#include <string.h>

/* BytesEquals.proto */
static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals);

/* UnicodeEquals.proto */
static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals);

/* fastcall.proto */
#if CYTHON_AVOID_BORROWED_REFS
    #define __Pyx_Arg_VARARGS(args, i) PySequence_GetItem(args, i)
#elif CYTHON_ASSUME_SAFE_MACROS
    #define __Pyx_Arg_VARARGS(args, i) PyTuple_GET_ITEM(args, i)
#else
    #define __Pyx_Arg_VARARGS(args, i) PyTuple_GetItem(args, i)
#endif
#if CYTHON_AVOID_BORROWED_REFS
    #define __Pyx_Arg_NewRef_VARARGS(arg) __Pyx_NewRef(arg)
    #define __Pyx_Arg_XDECREF_VARARGS(arg) Py_XDECREF(arg)
#else
    #define __Pyx_Arg_NewRef_VARARGS(arg) arg // no-op
    #define __Pyx_Arg_XDECREF_VARARGS(arg) // no-op - arg is borrowed
#endif
#define __Pyx_NumKwargs_VARARGS(kwds) PyDict_Size(kwds)
#define __Pyx_KwValues_VARARGS(args, nargs) NULL
#define __Pyx_GetKwValue_VARARGS(kw, kwvalues, s) __Pyx_PyDict_GetItemStrWithError(kw, s)
#define __Pyx_KwargsAsDict_VARARGS(kw, kwvalues) PyDict_Copy(kw)
#if CYTHON_METH_FASTCALL
    #define __Pyx_Arg_FASTCALL(args, i) args[i]
    #define __Pyx_NumKwargs_FASTCALL(kwds) PyTuple_GET_SIZE(kwds)
    #define __Pyx_KwValues_FASTCALL(args, nargs) ((args) + (nargs))
    static CYTHON_INLINE PyObject * __Pyx_GetKwValue_FASTCALL(PyObject *kwnames, PyObject *const *kwvalues, PyObject *s);
    #define __Pyx_KwargsAsDict_FASTCALL(kw, kwvalues) _PyStack_AsDict(kwvalues, kw)
    #define __Pyx_Arg_NewRef_FASTCALL(arg) arg // no-op, __Pyx_Arg_FASTCALL is direct and this needs
    #define __Pyx_Arg_XDECREF_FASTCALL(arg)  // no-op - arg was returned from array
#else
    #define __Pyx_Arg_FASTCALL __Pyx_Arg_VARARGS
    #define __Pyx_NumKwargs_FASTCALL __Pyx_NumKwargs_VARARGS
    #define __Pyx_KwValues_FASTCALL __Pyx_KwValues_VARARGS
    #define __Pyx_GetKwValue_FASTCALL __Pyx_GetKwValue_VARARGS
    #define __Pyx_KwargsAsDict_FASTCALL __Pyx_KwargsAsDict_VARARGS
    #define __Pyx_Arg_NewRef_FASTCALL(arg) __Pyx_Arg_NewRef_VARARGS(arg)
    #define __Pyx_Arg_XDECREF_FASTCALL(arg) __Pyx_Arg_XDECREF_VARARGS(arg)
#endif
#if CYTHON_COMPILING_IN_CPYTHON && CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
#define __Pyx_ArgsSlice_VARARGS(args, start, stop) __Pyx_PyTuple_FromArray(&__Pyx_Arg_VARARGS(args, start), stop - start)
#define __Pyx_ArgsSlice_FASTCALL(args, start, stop) __Pyx_PyTuple_FromArray(&__Pyx_Arg_FASTCALL(args, start), stop - start)
#else
#define __Pyx_ArgsSlice_VARARGS(args, start, stop) PyTuple_GetSlice(args, start, stop)
#define __Pyx_ArgsSlice_FASTCALL(args, start, stop) PyTuple_GetSlice(args, start, stop)
#endif

/* RaiseDoubleKeywords.proto */
static void __Pyx_RaiseDoubleKeywordsError(const char* func_name, PyObject* kw_name);

/* ParseKeywords.proto */
static int __Pyx_ParseOptionalKeywords(PyObject *kwds, PyObject *const *kwvalues,
    PyObject **argnames[],
    PyObject *kwds2, PyObject *values[], Py_ssize_t num_pos_args,
    const char* function_name);

/* RaiseArgTupleInvalid.proto */
static void __Pyx_RaiseArgtupleInvalid(const char* func_name, int exact,
    Py_ssize_t num_min, Py_ssize_t num_max, Py_ssize_t num_found);

/* ArgTypeTest.proto */
#define __Pyx_ArgTypeTest(obj, type, none_allowed, name, exact)\
    ((likely(__Pyx_IS_TYPE(obj, type) | (none_allowed && (obj == Py_None)))) ? 1 :\
        __Pyx__ArgTypeTest(obj, type, name, exact))
static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact);

/* KeywordStringCheck.proto */
static int __Pyx_CheckKeywordStrings(PyObject *kw, const char* function_name, int kw_allowed);

/* ErrOccurredWithGIL.proto */
static CYTHON_INLINE int __Pyx_ErrOccurredWithGIL(void);

/* PyFunctionFastCall.proto */
#if CYTHON_FAST_PYCALL
#if !CYTHON_VECTORCALL
#define __Pyx_PyFunction_FastCall(func, args, nargs)\
    __Pyx_PyFunction_FastCallDict((func), (args), (nargs), NULL)
static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs);
#endif
#define __Pyx_BUILD_ASSERT_EXPR(cond)\
    (sizeof(char [1 - 2*!(cond)]) - 1)
#ifndef Py_MEMBER_SIZE
#define Py_MEMBER_SIZE(type, member) sizeof(((type *)0)->member)
#endif
#if !CYTHON_VECTORCALL
#if PY_VERSION_HEX >= 0x03080000
  #include "frameobject.h"
#if PY_VERSION_HEX >= 0x030b00a6 && !CYTHON_COMPILING_IN_LIMITED_API
  #ifndef Py_BUILD_CORE
    #define Py_BUILD_CORE 1
  #endif
  #include "internal/pycore_frame.h"
#endif
  #define __Pxy_PyFrame_Initialize_Offsets()
  #define __Pyx_PyFrame_GetLocalsplus(frame)  ((frame)->f_localsplus)
#else
  static size_t __pyx_pyframe_localsplus_offset = 0;
  #include "frameobject.h"
  #define __Pxy_PyFrame_Initialize_Offsets()\
    ((void)__Pyx_BUILD_ASSERT_EXPR(sizeof(PyFrameObject) == offsetof(PyFrameObject, f_localsplus) + Py_MEMBER_SIZE(PyFrameObject, f_localsplus)),\
     (void)(__pyx_pyframe_localsplus_offset = ((size_t)PyFrame_Type.tp_basicsize) - Py_MEMBER_SIZE(PyFrameObject, f_localsplus)))
  #define __Pyx_PyFrame_GetLocalsplus(frame)\
    (assert(__pyx_pyframe_localsplus_offset), (PyObject **)(((char *)(frame)) + __pyx_pyframe_localsplus_offset))
#endif
#endif
#endif

/* PyObjectCallMethO.proto */
#if CYTHON_COMPILING_IN_CPYTHON
static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg);
#endif

/* PyObjectFastCall.proto */
#define __Pyx_PyObject_FastCall(func, args, nargs)  __Pyx_PyObject_FastCallDict(func, args, (size_t)(nargs), NULL)
static CYTHON_INLINE PyObject* __Pyx_PyObject_FastCallDict(PyObject *func, PyObject **args, size_t nargs, PyObject *kwargs);

/* PyDictVersioning.proto */
#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
#define __PYX_DICT_VERSION_INIT  ((PY_UINT64_T) -1)
#define __PYX_GET_DICT_VERSION(dict)  (((PyDictObject*)(dict))->ma_version_tag)
#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)\
    (version_var) = __PYX_GET_DICT_VERSION(dict);\
    (cache_var) = (value);
#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP) {\
    static PY_UINT64_T __pyx_dict_version = 0;\
    static PyObject *__pyx_dict_cached_value = NULL;\
    if (likely(__PYX_GET_DICT_VERSION(DICT) == __pyx_dict_version)) {\
        (VAR) = __pyx_dict_cached_value;\
    } else {\
        (VAR) = __pyx_dict_cached_value = (LOOKUP);\
        __pyx_dict_version = __PYX_GET_DICT_VERSION(DICT);\
    }\
}
static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj);
static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj);
static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version);
#else
#define __PYX_GET_DICT_VERSION(dict)  (0)
#define __PYX_UPDATE_DICT_CACHE(dict, value, cache_var, version_var)
#define __PYX_PY_DICT_LOOKUP_IF_MODIFIED(VAR, DICT, LOOKUP)  (VAR) = (LOOKUP);
#endif

/* GetModuleGlobalName.proto */
#if CYTHON_USE_DICT_VERSIONS
#define __Pyx_GetModuleGlobalName(var, name)  do {\
    static PY_UINT64_T __pyx_dict_version = 0;\
    static PyObject *__pyx_dict_cached_value = NULL;\
    (var) = (likely(__pyx_dict_version == __PYX_GET_DICT_VERSION(__pyx_d))) ?\
        (likely(__pyx_dict_cached_value) ? __Pyx_NewRef(__pyx_dict_cached_value) : __Pyx_GetBuiltinName(name)) :\
        __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
} while(0)
#define __Pyx_GetModuleGlobalNameUncached(var, name)  do {\
    PY_UINT64_T __pyx_dict_version;\
    PyObject *__pyx_dict_cached_value;\
    (var) = __Pyx__GetModuleGlobalName(name, &__pyx_dict_version, &__pyx_dict_cached_value);\
} while(0)
static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value);
#else
#define __Pyx_GetModuleGlobalName(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
#define __Pyx_GetModuleGlobalNameUncached(var, name)  (var) = __Pyx__GetModuleGlobalName(name)
static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name);
#endif

/* PyObjectFormatAndDecref.proto */
static CYTHON_INLINE PyObject* __Pyx_PyObject_FormatSimpleAndDecref(PyObject* s, PyObject* f);
static CYTHON_INLINE PyObject* __Pyx_PyObject_FormatAndDecref(PyObject* s, PyObject* f);

/* JoinPyUnicode.proto */
static PyObject* __Pyx_PyUnicode_Join(PyObject* value_tuple, Py_ssize_t value_count, Py_ssize_t result_ulength,
                                      Py_UCS4 max_char);

/* PyObjectCallOneArg.proto */
static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg);

/* ExtTypeTest.proto */
static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type);

/* GetItemInt.proto */
#define __Pyx_GetItemInt(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
    __Pyx_GetItemInt_Fast(o, (Py_ssize_t)i, is_list, wraparound, boundscheck) :\
    (is_list ? (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL) :\
               __Pyx_GetItemInt_Generic(o, to_py_func(i))))
#define __Pyx_GetItemInt_List(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
    __Pyx_GetItemInt_List_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) :\
    (PyErr_SetString(PyExc_IndexError, "list index out of range"), (PyObject*)NULL))
static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
                                                              int wraparound, int boundscheck);
#define __Pyx_GetItemInt_Tuple(o, i, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
    __Pyx_GetItemInt_Tuple_Fast(o, (Py_ssize_t)i, wraparound, boundscheck) :\
    (PyErr_SetString(PyExc_IndexError, "tuple index out of range"), (PyObject*)NULL))
static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
                                                              int wraparound, int boundscheck);
static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j);
static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i,
                                                     int is_list, int wraparound, int boundscheck);

/* WriteUnraisableException.proto */
static void __Pyx_WriteUnraisable(const char *name, int clineno,
                                  int lineno, const char *filename,
                                  int full_traceback, int nogil);

/* SetItemInt.proto */
#define __Pyx_SetItemInt(o, i, v, type, is_signed, to_py_func, is_list, wraparound, boundscheck)\
    (__Pyx_fits_Py_ssize_t(i, type, is_signed) ?\
    __Pyx_SetItemInt_Fast(o, (Py_ssize_t)i, v, is_list, wraparound, boundscheck) :\
    (is_list ? (PyErr_SetString(PyExc_IndexError, "list assignment index out of range"), -1) :\
               __Pyx_SetItemInt_Generic(o, to_py_func(i), v)))
static int __Pyx_SetItemInt_Generic(PyObject *o, PyObject *j, PyObject *v);
static CYTHON_INLINE int __Pyx_SetItemInt_Fast(PyObject *o, Py_ssize_t i, PyObject *v,
                                               int is_list, int wraparound, int boundscheck);

/* ListAppend.proto */
#if CYTHON_USE_PYLIST_INTERNALS && CYTHON_ASSUME_SAFE_MACROS
static CYTHON_INLINE int __Pyx_PyList_Append(PyObject* list, PyObject* x) {
    PyListObject* L = (PyListObject*) list;
    Py_ssize_t len = Py_SIZE(list);
    if (likely(L->allocated > len) & likely(len > (L->allocated >> 1))) {
        Py_INCREF(x);
        PyList_SET_ITEM(list, len, x);
        __Pyx_SET_SIZE(list, len + 1);
        return 0;
    }
    return PyList_Append(list, x);
}
#else
#define __Pyx_PyList_Append(L,x) PyList_Append(L,x)
#endif

/* PyObjectFormatSimple.proto */
#if CYTHON_COMPILING_IN_PYPY
    #define __Pyx_PyObject_FormatSimple(s, f) (\
        likely(PyUnicode_CheckExact(s)) ? (Py_INCREF(s), s) :\
        PyObject_Format(s, f))
#elif PY_MAJOR_VERSION < 3
    #define __Pyx_PyObject_FormatSimple(s, f) (\
        likely(PyUnicode_CheckExact(s)) ? (Py_INCREF(s), s) :\
        likely(PyString_CheckExact(s)) ? PyUnicode_FromEncodedObject(s, NULL, "strict") :\
        PyObject_Format(s, f))
#elif CYTHON_USE_TYPE_SLOTS
    #define __Pyx_PyObject_FormatSimple(s, f) (\
        likely(PyUnicode_CheckExact(s)) ? (Py_INCREF(s), s) :\
        likely(PyLong_CheckExact(s)) ? PyLong_Type.tp_repr(s) :\
        likely(PyFloat_CheckExact(s)) ? PyFloat_Type.tp_repr(s) :\
        PyObject_Format(s, f))
#else
    #define __Pyx_PyObject_FormatSimple(s, f) (\
        likely(PyUnicode_CheckExact(s)) ? (Py_INCREF(s), s) :\
        PyObject_Format(s, f))
#endif

/* PyFloatBinop.proto */
#if !CYTHON_COMPILING_IN_PYPY
static int __Pyx_PyFloat_BoolNeObjC(PyObject *op1, PyObject *op2, double floatval, int inplace, int zerodivision_check);
#else
#define __Pyx_PyFloat_BoolNeObjC(op1, op2, floatval, inplace, zerodivision_check)\
    __Pyx_PyObject_IsTrueAndDecref(PyObject_RichCompare(op1, op2, Py_NE))
    #endif

/* PyIntCompare.proto */
static CYTHON_INLINE int __Pyx_PyInt_BoolNeObjC(PyObject *op1, PyObject *op2, long intval, long inplace);

/* IncludeStructmemberH.proto */
#include <structmember.h>

/* FixUpExtensionType.proto */
#if CYTHON_USE_TYPE_SPECS
static int __Pyx_fix_up_extension_type_from_spec(PyType_Spec *spec, PyTypeObject *type);
#endif

/* PyObjectCallNoArg.proto */
static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func);

/* PyObjectGetMethod.proto */
static int __Pyx_PyObject_GetMethod(PyObject *obj, PyObject *name, PyObject **method);

/* PyObjectCallMethod0.proto */
static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name);

/* ValidateBasesTuple.proto */
#if CYTHON_COMPILING_IN_CPYTHON || CYTHON_COMPILING_IN_LIMITED_API || CYTHON_USE_TYPE_SPECS
static int __Pyx_validate_bases_tuple(const char *type_name, Py_ssize_t dictoffset, PyObject *bases);
#endif

/* PyType_Ready.proto */
CYTHON_UNUSED static int __Pyx_PyType_Ready(PyTypeObject *t);

/* PyObject_GenericGetAttrNoDict.proto */
#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name);
#else
#define __Pyx_PyObject_GenericGetAttrNoDict PyObject_GenericGetAttr
#endif

/* PyObject_GenericGetAttr.proto */
#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_name);
#else
#define __Pyx_PyObject_GenericGetAttr PyObject_GenericGetAttr
#endif

/* SetVTable.proto */
static int __Pyx_SetVtable(PyTypeObject* typeptr , void* vtable);

/* GetVTable.proto */
static void* __Pyx_GetVtable(PyTypeObject *type);

/* MergeVTables.proto */
#if !CYTHON_COMPILING_IN_LIMITED_API
static int __Pyx_MergeVtables(PyTypeObject *type);
#endif

/* SetupReduce.proto */
#if !CYTHON_COMPILING_IN_LIMITED_API
static int __Pyx_setup_reduce(PyObject* type_obj);
#endif

/* TypeImport.proto */
#ifndef __PYX_HAVE_RT_ImportType_proto_3_0_3
#define __PYX_HAVE_RT_ImportType_proto_3_0_3
#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L
#include <stdalign.h>
#endif
#if (defined (__STDC_VERSION__) && __STDC_VERSION__ >= 201112L) || __cplusplus >= 201103L
#define __PYX_GET_STRUCT_ALIGNMENT_3_0_3(s) alignof(s)
#else
#define __PYX_GET_STRUCT_ALIGNMENT_3_0_3(s) sizeof(void*)
#endif
enum __Pyx_ImportType_CheckSize_3_0_3 {
   __Pyx_ImportType_CheckSize_Error_3_0_3 = 0,
   __Pyx_ImportType_CheckSize_Warn_3_0_3 = 1,
   __Pyx_ImportType_CheckSize_Ignore_3_0_3 = 2
};
static PyTypeObject *__Pyx_ImportType_3_0_3(PyObject* module, const char *module_name, const char *class_name, size_t size, size_t alignment, enum __Pyx_ImportType_CheckSize_3_0_3 check_size);
#endif

/* Import.proto */
static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level);

/* ImportDottedModule.proto */
static PyObject *__Pyx_ImportDottedModule(PyObject *name, PyObject *parts_tuple);
#if PY_MAJOR_VERSION >= 3
static PyObject *__Pyx_ImportDottedModule_WalkParts(PyObject *module, PyObject *name, PyObject *parts_tuple);
#endif

/* ImportFrom.proto */
static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name);

/* FetchSharedCythonModule.proto */
static PyObject *__Pyx_FetchSharedCythonABIModule(void);

/* FetchCommonType.proto */
#if !CYTHON_USE_TYPE_SPECS
static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type);
#else
static PyTypeObject* __Pyx_FetchCommonTypeFromSpec(PyObject *module, PyType_Spec *spec, PyObject *bases);
#endif

/* PyMethodNew.proto */
#if CYTHON_COMPILING_IN_LIMITED_API
static PyObject *__Pyx_PyMethod_New(PyObject *func, PyObject *self, PyObject *typ) {
    PyObject *typesModule=NULL, *methodType=NULL, *result=NULL;
    CYTHON_UNUSED_VAR(typ);
    if (!self)
        return __Pyx_NewRef(func);
    typesModule = PyImport_ImportModule("types");
    if (!typesModule) return NULL;
    methodType = PyObject_GetAttrString(typesModule, "MethodType");
    Py_DECREF(typesModule);
    if (!methodType) return NULL;
    result = PyObject_CallFunctionObjArgs(methodType, func, self, NULL);
    Py_DECREF(methodType);
    return result;
}
#elif PY_MAJOR_VERSION >= 3
static PyObject *__Pyx_PyMethod_New(PyObject *func, PyObject *self, PyObject *typ) {
    CYTHON_UNUSED_VAR(typ);
    if (!self)
        return __Pyx_NewRef(func);
    return PyMethod_New(func, self);
}
#else
    #define __Pyx_PyMethod_New PyMethod_New
#endif

/* PyVectorcallFastCallDict.proto */
#if CYTHON_METH_FASTCALL
static CYTHON_INLINE PyObject *__Pyx_PyVectorcall_FastCallDict(PyObject *func, __pyx_vectorcallfunc vc, PyObject *const *args, size_t nargs, PyObject *kw);
#endif

/* CythonFunctionShared.proto */
#define __Pyx_CyFunction_USED
#define __Pyx_CYFUNCTION_STATICMETHOD  0x01
#define __Pyx_CYFUNCTION_CLASSMETHOD   0x02
#define __Pyx_CYFUNCTION_CCLASS        0x04
#define __Pyx_CYFUNCTION_COROUTINE     0x08
#define __Pyx_CyFunction_GetClosure(f)\
    (((__pyx_CyFunctionObject *) (f))->func_closure)
#if PY_VERSION_HEX < 0x030900B1 || CYTHON_COMPILING_IN_LIMITED_API
  #define __Pyx_CyFunction_GetClassObj(f)\
      (((__pyx_CyFunctionObject *) (f))->func_classobj)
#else
  #define __Pyx_CyFunction_GetClassObj(f)\
      ((PyObject*) ((PyCMethodObject *) (f))->mm_class)
#endif
#define __Pyx_CyFunction_SetClassObj(f, classobj)\
    __Pyx__CyFunction_SetClassObj((__pyx_CyFunctionObject *) (f), (classobj))
#define __Pyx_CyFunction_Defaults(type, f)\
    ((type *)(((__pyx_CyFunctionObject *) (f))->defaults))
#define __Pyx_CyFunction_SetDefaultsGetter(f, g)\
    ((__pyx_CyFunctionObject *) (f))->defaults_getter = (g)
typedef struct {
#if CYTHON_COMPILING_IN_LIMITED_API
    PyObject_HEAD
    PyObject *func;
#elif PY_VERSION_HEX < 0x030900B1
    PyCFunctionObject func;
#else
    PyCMethodObject func;
#endif
#if CYTHON_BACKPORT_VECTORCALL
    __pyx_vectorcallfunc func_vectorcall;
#endif
#if PY_VERSION_HEX < 0x030500A0 || CYTHON_COMPILING_IN_LIMITED_API
    PyObject *func_weakreflist;
#endif
    PyObject *func_dict;
    PyObject *func_name;
    PyObject *func_qualname;
    PyObject *func_doc;
    PyObject *func_globals;
    PyObject *func_code;
    PyObject *func_closure;
#if PY_VERSION_HEX < 0x030900B1 || CYTHON_COMPILING_IN_LIMITED_API
    PyObject *func_classobj;
#endif
    void *defaults;
    int defaults_pyobjects;
    size_t defaults_size;  // used by FusedFunction for copying defaults
    int flags;
    PyObject *defaults_tuple;
    PyObject *defaults_kwdict;
    PyObject *(*defaults_getter)(PyObject *);
    PyObject *func_annotations;
    PyObject *func_is_coroutine;
} __pyx_CyFunctionObject;
#undef __Pyx_CyOrPyCFunction_Check
#define __Pyx_CyFunction_Check(obj)  __Pyx_TypeCheck(obj, __pyx_CyFunctionType)
#define __Pyx_CyOrPyCFunction_Check(obj)  __Pyx_TypeCheck2(obj, __pyx_CyFunctionType, &PyCFunction_Type)
#define __Pyx_CyFunction_CheckExact(obj)  __Pyx_IS_TYPE(obj, __pyx_CyFunctionType)
static CYTHON_INLINE int __Pyx__IsSameCyOrCFunction(PyObject *func, void *cfunc);
#undef __Pyx_IsSameCFunction
#define __Pyx_IsSameCFunction(func, cfunc)   __Pyx__IsSameCyOrCFunction(func, cfunc)
static PyObject *__Pyx_CyFunction_Init(__pyx_CyFunctionObject* op, PyMethodDef *ml,
                                      int flags, PyObject* qualname,
                                      PyObject *closure,
                                      PyObject *module, PyObject *globals,
                                      PyObject* code);
static CYTHON_INLINE void __Pyx__CyFunction_SetClassObj(__pyx_CyFunctionObject* f, PyObject* classobj);
static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *m,
                                                         size_t size,
                                                         int pyobjects);
static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *m,
                                                            PyObject *tuple);
static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *m,
                                                             PyObject *dict);
static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *m,
                                                              PyObject *dict);
static int __pyx_CyFunction_init(PyObject *module);
#if CYTHON_METH_FASTCALL
static PyObject * __Pyx_CyFunction_Vectorcall_NOARGS(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames);
static PyObject * __Pyx_CyFunction_Vectorcall_O(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames);
static PyObject * __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames);
static PyObject * __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS_METHOD(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames);
#if CYTHON_BACKPORT_VECTORCALL
#define __Pyx_CyFunction_func_vectorcall(f) (((__pyx_CyFunctionObject*)f)->func_vectorcall)
#else
#define __Pyx_CyFunction_func_vectorcall(f) (((PyCFunctionObject*)f)->vectorcall)
#endif
#endif

/* CythonFunction.proto */
static PyObject *__Pyx_CyFunction_New(PyMethodDef *ml,
                                      int flags, PyObject* qualname,
                                      PyObject *closure,
                                      PyObject *module, PyObject *globals,
                                      PyObject* code);

/* CLineInTraceback.proto */
#ifdef CYTHON_CLINE_IN_TRACEBACK
#define __Pyx_CLineForTraceback(tstate, c_line)  (((CYTHON_CLINE_IN_TRACEBACK)) ? c_line : 0)
#else
static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line);
#endif

/* CodeObjectCache.proto */
#if !CYTHON_COMPILING_IN_LIMITED_API
typedef struct {
    PyCodeObject* code_object;
    int code_line;
} __Pyx_CodeObjectCacheEntry;
struct __Pyx_CodeObjectCache {
    int count;
    int max_count;
    __Pyx_CodeObjectCacheEntry* entries;
};
static struct __Pyx_CodeObjectCache __pyx_code_cache = {0,0,NULL};
static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line);
static PyCodeObject *__pyx_find_code_object(int code_line);
static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object);
#endif

/* AddTraceback.proto */
static void __Pyx_AddTraceback(const char *funcname, int c_line,
                               int py_line, const char *filename);

/* GCCDiagnostics.proto */
#if !defined(__INTEL_COMPILER) && defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6))
#define __Pyx_HAS_GCC_DIAGNOSTIC
#endif

/* RealImag.proto */
#if CYTHON_CCOMPLEX
  #ifdef __cplusplus
    #define __Pyx_CREAL(z) ((z).real())
    #define __Pyx_CIMAG(z) ((z).imag())
  #else
    #define __Pyx_CREAL(z) (__real__(z))
    #define __Pyx_CIMAG(z) (__imag__(z))
  #endif
#else
    #define __Pyx_CREAL(z) ((z).real)
    #define __Pyx_CIMAG(z) ((z).imag)
#endif
#if defined(__cplusplus) && CYTHON_CCOMPLEX\
        && (defined(_WIN32) || defined(__clang__) || (defined(__GNUC__) && (__GNUC__ >= 5 || __GNUC__ == 4 && __GNUC_MINOR__ >= 4 )) || __cplusplus >= 201103)
    #define __Pyx_SET_CREAL(z,x) ((z).real(x))
    #define __Pyx_SET_CIMAG(z,y) ((z).imag(y))
#else
    #define __Pyx_SET_CREAL(z,x) __Pyx_CREAL(z) = (x)
    #define __Pyx_SET_CIMAG(z,y) __Pyx_CIMAG(z) = (y)
#endif

/* Arithmetic.proto */
#if CYTHON_CCOMPLEX && (1) && (!0 || __cplusplus)
    #define __Pyx_c_eq_float(a, b)   ((a)==(b))
    #define __Pyx_c_sum_float(a, b)  ((a)+(b))
    #define __Pyx_c_diff_float(a, b) ((a)-(b))
    #define __Pyx_c_prod_float(a, b) ((a)*(b))
    #define __Pyx_c_quot_float(a, b) ((a)/(b))
    #define __Pyx_c_neg_float(a)     (-(a))
  #ifdef __cplusplus
    #define __Pyx_c_is_zero_float(z) ((z)==(float)0)
    #define __Pyx_c_conj_float(z)    (::std::conj(z))
    #if 1
        #define __Pyx_c_abs_float(z)     (::std::abs(z))
        #define __Pyx_c_pow_float(a, b)  (::std::pow(a, b))
    #endif
  #else
    #define __Pyx_c_is_zero_float(z) ((z)==0)
    #define __Pyx_c_conj_float(z)    (conjf(z))
    #if 1
        #define __Pyx_c_abs_float(z)     (cabsf(z))
        #define __Pyx_c_pow_float(a, b)  (cpowf(a, b))
    #endif
 #endif
#else
    static CYTHON_INLINE int __Pyx_c_eq_float(__pyx_t_float_complex, __pyx_t_float_complex);
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_sum_float(__pyx_t_float_complex, __pyx_t_float_complex);
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_diff_float(__pyx_t_float_complex, __pyx_t_float_complex);
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_prod_float(__pyx_t_float_complex, __pyx_t_float_complex);
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_quot_float(__pyx_t_float_complex, __pyx_t_float_complex);
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_neg_float(__pyx_t_float_complex);
    static CYTHON_INLINE int __Pyx_c_is_zero_float(__pyx_t_float_complex);
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_conj_float(__pyx_t_float_complex);
    #if 1
        static CYTHON_INLINE float __Pyx_c_abs_float(__pyx_t_float_complex);
        static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_pow_float(__pyx_t_float_complex, __pyx_t_float_complex);
    #endif
#endif

/* Arithmetic.proto */
#if CYTHON_CCOMPLEX && (1) && (!0 || __cplusplus)
    #define __Pyx_c_eq_double(a, b)   ((a)==(b))
    #define __Pyx_c_sum_double(a, b)  ((a)+(b))
    #define __Pyx_c_diff_double(a, b) ((a)-(b))
    #define __Pyx_c_prod_double(a, b) ((a)*(b))
    #define __Pyx_c_quot_double(a, b) ((a)/(b))
    #define __Pyx_c_neg_double(a)     (-(a))
  #ifdef __cplusplus
    #define __Pyx_c_is_zero_double(z) ((z)==(double)0)
    #define __Pyx_c_conj_double(z)    (::std::conj(z))
    #if 1
        #define __Pyx_c_abs_double(z)     (::std::abs(z))
        #define __Pyx_c_pow_double(a, b)  (::std::pow(a, b))
    #endif
  #else
    #define __Pyx_c_is_zero_double(z) ((z)==0)
    #define __Pyx_c_conj_double(z)    (conj(z))
    #if 1
        #define __Pyx_c_abs_double(z)     (cabs(z))
        #define __Pyx_c_pow_double(a, b)  (cpow(a, b))
    #endif
 #endif
#else
    static CYTHON_INLINE int __Pyx_c_eq_double(__pyx_t_double_complex, __pyx_t_double_complex);
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_sum_double(__pyx_t_double_complex, __pyx_t_double_complex);
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_diff_double(__pyx_t_double_complex, __pyx_t_double_complex);
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_prod_double(__pyx_t_double_complex, __pyx_t_double_complex);
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_quot_double(__pyx_t_double_complex, __pyx_t_double_complex);
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_neg_double(__pyx_t_double_complex);
    static CYTHON_INLINE int __Pyx_c_is_zero_double(__pyx_t_double_complex);
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_conj_double(__pyx_t_double_complex);
    #if 1
        static CYTHON_INLINE double __Pyx_c_abs_double(__pyx_t_double_complex);
        static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_pow_double(__pyx_t_double_complex, __pyx_t_double_complex);
    #endif
#endif

/* CIntToPy.proto */
static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value);

/* CIntToPy.proto */
static CYTHON_INLINE PyObject* __Pyx_PyInt_From___pyx_anon_enum(int value);

/* CIntFromPy.proto */
static CYTHON_INLINE size_t __Pyx_PyInt_As_size_t(PyObject *);

/* FormatTypeName.proto */
#if CYTHON_COMPILING_IN_LIMITED_API
typedef PyObject *__Pyx_TypeName;
#define __Pyx_FMT_TYPENAME "%U"
static __Pyx_TypeName __Pyx_PyType_GetName(PyTypeObject* tp);
#define __Pyx_DECREF_TypeName(obj) Py_XDECREF(obj)
#else
typedef const char *__Pyx_TypeName;
#define __Pyx_FMT_TYPENAME "%.200s"
#define __Pyx_PyType_GetName(tp) ((tp)->tp_name)
#define __Pyx_DECREF_TypeName(obj)
#endif

/* CIntToPy.proto */
static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value);

/* CIntFromPy.proto */
static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *);

/* CIntFromPy.proto */
static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *);

/* FastTypeChecks.proto */
#if CYTHON_COMPILING_IN_CPYTHON
#define __Pyx_TypeCheck(obj, type) __Pyx_IsSubtype(Py_TYPE(obj), (PyTypeObject *)type)
#define __Pyx_TypeCheck2(obj, type1, type2) __Pyx_IsAnySubtype2(Py_TYPE(obj), (PyTypeObject *)type1, (PyTypeObject *)type2)
static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b);
static CYTHON_INLINE int __Pyx_IsAnySubtype2(PyTypeObject *cls, PyTypeObject *a, PyTypeObject *b);
static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject *type);
static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *type1, PyObject *type2);
#else
#define __Pyx_TypeCheck(obj, type) PyObject_TypeCheck(obj, (PyTypeObject *)type)
#define __Pyx_TypeCheck2(obj, type1, type2) (PyObject_TypeCheck(obj, (PyTypeObject *)type1) || PyObject_TypeCheck(obj, (PyTypeObject *)type2))
#define __Pyx_PyErr_GivenExceptionMatches(err, type) PyErr_GivenExceptionMatches(err, type)
#define __Pyx_PyErr_GivenExceptionMatches2(err, type1, type2) (PyErr_GivenExceptionMatches(err, type1) || PyErr_GivenExceptionMatches(err, type2))
#endif
#define __Pyx_PyErr_ExceptionMatches2(err1, err2)  __Pyx_PyErr_GivenExceptionMatches2(__Pyx_PyErr_CurrentExceptionType(), err1, err2)
#define __Pyx_PyException_Check(obj) __Pyx_TypeCheck(obj, PyExc_Exception)

/* CheckBinaryVersion.proto */
static unsigned long __Pyx_get_runtime_version();
static int __Pyx_check_binary_version(unsigned long ct_version, unsigned long rt_version, int allow_newer);

/* FunctionImport.proto */
static int __Pyx_ImportFunction_3_0_3(PyObject *module, const char *funcname, void (**f)(void), const char *sig);

/* InitStrings.proto */
static int __Pyx_InitStrings(__Pyx_StringTabEntry *t);

/* #### Code section: module_declarations ### */
static CYTHON_INLINE PyObject *__pyx_f_5numpy_7ndarray_4base_base(PyArrayObject *__pyx_v_self); /* proto*/
static CYTHON_INLINE PyArray_Descr *__pyx_f_5numpy_7ndarray_5descr_descr(PyArrayObject *__pyx_v_self); /* proto*/
static CYTHON_INLINE int __pyx_f_5numpy_7ndarray_4ndim_ndim(PyArrayObject *__pyx_v_self); /* proto*/
static CYTHON_INLINE npy_intp *__pyx_f_5numpy_7ndarray_5shape_shape(PyArrayObject *__pyx_v_self); /* proto*/
static CYTHON_INLINE npy_intp *__pyx_f_5numpy_7ndarray_7strides_strides(PyArrayObject *__pyx_v_self); /* proto*/
static CYTHON_INLINE npy_intp __pyx_f_5numpy_7ndarray_4size_size(PyArrayObject *__pyx_v_self); /* proto*/
static CYTHON_INLINE char *__pyx_f_5numpy_7ndarray_4data_data(PyArrayObject *__pyx_v_self); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_reset(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_get_n_features(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, CYTHON_UNUSED Py_ssize_t __pyx_v_depth); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_next_feature(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, Py_ssize_t __pyx_v_feature_id, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, Py_ssize_t *__pyx_v_samples, Py_ssize_t __pyx_v_n_samples, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_transient, size_t *__pyx_v_seed); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_init_persistent_feature(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_transient, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_persistent); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_free_transient_feature(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_free_persistent_feature(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature); /* proto*/
static double __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_transient_feature_value(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, Py_ssize_t __pyx_v_sample); /* proto*/
static double __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_persistent_feature_value(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, Py_ssize_t __pyx_v_sample); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_transient_feature_values(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, Py_ssize_t *__pyx_v_samples, Py_ssize_t __pyx_v_n_samples, double *__pyx_v_values); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_persistent_feature_values(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, Py_ssize_t *__pyx_v_samples, Py_ssize_t __pyx_v_n_samples, double *__pyx_v_values); /* proto*/
static PyObject *__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_persistent_feature_to_object(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_persistent_feature_from_object(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, PyObject *__pyx_v_object, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_get_n_features(struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer *__pyx_v_self, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, Py_ssize_t __pyx_v_depth); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_9Criterion_init(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t *__pyx_v_samples, double *__pyx_v_sample_weights); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_9Criterion_reset(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_9Criterion_update(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self, CYTHON_UNUSED Py_ssize_t __pyx_v_pos, CYTHON_UNUSED Py_ssize_t __pyx_v_new_pos); /* proto*/
static double __pyx_f_8wildboar_4tree_6_ctree_9Criterion_proxy_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self); /* proto*/
static double __pyx_f_8wildboar_4tree_6_ctree_9Criterion_impurity(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_9Criterion_child_impurity(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self, CYTHON_UNUSED double *__pyx_v_left, CYTHON_UNUSED double *__pyx_v_right); /* proto*/
static double __pyx_f_8wildboar_4tree_6_ctree_9Criterion_impurity_improvement(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self, double __pyx_v_impurity_parent, double __pyx_v_impurity_left, double __pyx_v_impurity_right, double __pyx_v_weighted_n_samples); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_9Criterion_leaf_value(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self, CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_tree, CYTHON_UNUSED Py_ssize_t __pyx_v_node_id); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_init(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t *__pyx_v_samples, double *__pyx_v_sample_weights); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_reset(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_update(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self, Py_ssize_t __pyx_v_pos, Py_ssize_t __pyx_v_new_pos); /* proto*/
static double __pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_impurity(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_child_impurity(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self, CYTHON_UNUSED double *__pyx_v_left, CYTHON_UNUSED double *__pyx_v_right); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_leaf_value(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self, struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_tree, Py_ssize_t __pyx_v_node_id); /* proto*/
static double __pyx_f_8wildboar_4tree_6_ctree_13GiniCriterion_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion *__pyx_v_self); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_13GiniCriterion_child_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion *__pyx_v_self, double *__pyx_v_left, double *__pyx_v_right); /* proto*/
static double __pyx_f_8wildboar_4tree_6_ctree_16EntropyCriterion_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion *__pyx_v_self); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_16EntropyCriterion_child_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion *__pyx_v_self, double *__pyx_v_left, double *__pyx_v_right); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_19RegressionCriterion_init(struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t *__pyx_v_samples, double *__pyx_v_sample_weights); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_19RegressionCriterion_reset(struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_19RegressionCriterion_update(struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self, Py_ssize_t __pyx_v_pos, Py_ssize_t __pyx_v_new_pos); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_19RegressionCriterion_leaf_value(struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self, struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_tree, Py_ssize_t __pyx_v_node_id); /* proto*/
static double __pyx_f_8wildboar_4tree_6_ctree_12MSECriterion_proxy_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *__pyx_v_self); /* proto*/
static double __pyx_f_8wildboar_4tree_6_ctree_12MSECriterion_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *__pyx_v_self); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_12MSECriterion_child_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *__pyx_v_self, double *__pyx_v_left, double *__pyx_v_right); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_4Tree_add_leaf_node(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, Py_ssize_t __pyx_v_parent, int __pyx_v_is_left, Py_ssize_t __pyx_v_n_node_samples, double __pyx_v_n_weighted_node_samples); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_4Tree_set_leaf_value(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, Py_ssize_t __pyx_v_node_id, Py_ssize_t __pyx_v_out_label, double __pyx_v_out_value); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_4Tree_add_branch_node(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, Py_ssize_t __pyx_v_parent, int __pyx_v_is_left, Py_ssize_t __pyx_v_n_node_samples, double __pyx_v_n_weighted_node_samples, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature, double __pyx_v_threshold, double __pyx_v_impurity); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_4Tree__increase_capacity(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder_build_tree(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, int __pyx_skip_dispatch); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder_new_leaf_node(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t __pyx_v_parent, int __pyx_v_is_left); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder_new_branch_node(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint __pyx_v_sp, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_persistent_feature, Py_ssize_t __pyx_v_parent, int __pyx_v_is_left); /* proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder__build_tree(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t __pyx_v_depth, Py_ssize_t __pyx_v_parent, int __pyx_v_is_left, double __pyx_v_impurity, Py_ssize_t *__pyx_v_max_depth); /* proto*/
static struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder__split(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t __pyx_v_depth, double __pyx_v_parent_impurity); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder__partition_feature_buffer(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t *__pyx_v_best_split_point, double *__pyx_v_best_threshold, double *__pyx_v_best_impurity); /* proto*/
static void __pyx_f_8wildboar_4tree_6_ctree_16ExtraTreeBuilder__partition_feature_buffer(struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t *__pyx_v_split_point, double *__pyx_v_threshold, double *__pyx_v_impurity); /* proto*/

/* Module declarations from "libc.string" */

/* Module declarations from "libc.stdio" */

/* Module declarations from "__builtin__" */

/* Module declarations from "cpython.type" */

/* Module declarations from "cpython" */

/* Module declarations from "cpython.object" */

/* Module declarations from "cpython.ref" */

/* Module declarations from "numpy" */

/* Module declarations from "numpy" */

/* Module declarations from "libc.math" */

/* Module declarations from "libc.stdlib" */

/* Module declarations from "wildboar.utils.data" */

/* Module declarations from "wildboar.distance._distance" */

/* Module declarations from "wildboar.transform._feature" */

/* Module declarations from "wildboar.utils.misc" */
static void (*__pyx_f_8wildboar_5utils_4misc_argsort)(double *, Py_ssize_t *, Py_ssize_t); /*proto*/
static int (*__pyx_f_8wildboar_5utils_4misc_safe_realloc)(void **, Py_ssize_t); /*proto*/

/* Module declarations from "wildboar.utils.rand" */
static size_t (*__pyx_f_8wildboar_5utils_4rand_rand_int)(size_t, size_t, size_t *); /*proto*/
static double (*__pyx_f_8wildboar_5utils_4rand_rand_uniform)(double, double, size_t *); /*proto*/

/* Module declarations from "wildboar.tree._ctree" */
static double __pyx_v_8wildboar_4tree_6_ctree_FEATURE_THRESHOLD;
static struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_f_8wildboar_4tree_6_ctree__make_tree(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, Py_ssize_t, Py_ssize_t, PyObject *, PyArrayObject *, PyArrayObject *, PyArrayObject *, PyArrayObject *, PyArrayObject *, PyArrayObject *, PyArrayObject *, int __pyx_skip_dispatch); /*proto*/
/* #### Code section: typeinfo ### */
/* #### Code section: before_global_var ### */
#define __Pyx_MODULE_NAME "wildboar.tree._ctree"
extern int __pyx_module_is_main_wildboar__tree___ctree;
int __pyx_module_is_main_wildboar__tree___ctree = 0;

/* Implementation of "wildboar.tree._ctree" */
/* #### Code section: global_var ### */
static PyObject *__pyx_builtin_super;
static PyObject *__pyx_builtin_TypeError;
static PyObject *__pyx_builtin_ValueError;
static PyObject *__pyx_builtin_range;
static PyObject *__pyx_builtin_MemoryError;
static PyObject *__pyx_builtin_ImportError;
/* #### Code section: string_decls ### */
static const char __pyx_k_X[] = "X";
static const char __pyx_k_c[] = "c";
static const char __pyx_k_i[] = "i";
static const char __pyx_k_y[] = "y";
static const char __pyx_k__3[] = " != ";
static const char __pyx_k__4[] = ")";
static const char __pyx_k__6[] = "*";
static const char __pyx_k__7[] = ".";
static const char __pyx_k_gc[] = "gc";
static const char __pyx_k_np[] = "np";
static const char __pyx_k_ts[] = "ts";
static const char __pyx_k__38[] = "?";
static const char __pyx_k_out[] = "out";
static const char __pyx_k_Tree[] = "Tree";
static const char __pyx_k_axis[] = "axis";
static const char __pyx_k_clip[] = "clip";
static const char __pyx_k_init[] = "__init__";
static const char __pyx_k_intc[] = "intc";
static const char __pyx_k_intp[] = "intp";
static const char __pyx_k_left[] = "left";
static const char __pyx_k_main[] = "__main__";
static const char __pyx_k_mode[] = "mode";
static const char __pyx_k_name[] = "__name__";
static const char __pyx_k_self[] = "self";
static const char __pyx_k_spec[] = "__spec__";
static const char __pyx_k_take[] = "take";
static const char __pyx_k_test[] = "__test__";
static const char __pyx_k_tree[] = "tree";
static const char __pyx_k_alpha[] = "alpha";
static const char __pyx_k_apply[] = "apply";
static const char __pyx_k_class[] = "__class__";
static const char __pyx_k_dtype[] = "dtype";
static const char __pyx_k_empty[] = "empty";
static const char __pyx_k_numpy[] = "numpy";
static const char __pyx_k_order[] = "order";
static const char __pyx_k_range[] = "range";
static const char __pyx_k_right[] = "right";
static const char __pyx_k_super[] = "super";
static const char __pyx_k_value[] = "value";
static const char __pyx_k_zeros[] = "zeros";
static const char __pyx_k_double[] = "double";
static const char __pyx_k_enable[] = "enable";
static const char __pyx_k_import[] = "__import__";
static const char __pyx_k_reduce[] = "__reduce__";
static const char __pyx_k_disable[] = "disable";
static const char __pyx_k_feature[] = "feature";
static const char __pyx_k_predict[] = "predict";
static const char __pyx_k_randint[] = "randint";
static const char __pyx_k_reshape[] = "reshape";
static const char __pyx_k_capacity[] = "capacity";
static const char __pyx_k_distance[] = "distance";
static const char __pyx_k_features[] = "features";
static const char __pyx_k_getstate[] = "__getstate__";
static const char __pyx_k_i_stride[] = "i_stride";
static const char __pyx_k_impurity[] = "impurity";
static const char __pyx_k_itemsize[] = "itemsize";
static const char __pyx_k_n_labels[] = "n_labels";
static const char __pyx_k_n_stride[] = "n_stride";
static const char __pyx_k_out_data[] = "out_data";
static const char __pyx_k_setstate[] = "__setstate__";
static const char __pyx_k_Criterion[] = "Criterion";
static const char __pyx_k_TypeError[] = "TypeError";
static const char __pyx_k_criterion[] = "criterion";
static const char __pyx_k_isenabled[] = "isenabled";
static const char __pyx_k_make_tree[] = "_make_tree";
static const char __pyx_k_max_depth[] = "max_depth";
static const char __pyx_k_pyx_state[] = "__pyx_state";
static const char __pyx_k_reduce_ex[] = "__reduce_ex__";
static const char __pyx_k_threshold[] = "threshold";
static const char __pyx_k_Tree_apply[] = "Tree.apply";
static const char __pyx_k_ValueError[] = "ValueError";
static const char __pyx_k_build_tree[] = "build_tree";
static const char __pyx_k_csr_matrix[] = "csr_matrix";
static const char __pyx_k_node_count[] = "node_count";
static const char __pyx_k_node_index[] = "node_index";
static const char __pyx_k_pyx_vtable[] = "__pyx_vtable__";
static const char __pyx_k_utils_data[] = "utils.data";
static const char __pyx_k_ImportError[] = "ImportError";
static const char __pyx_k_MemoryError[] = "MemoryError";
static const char __pyx_k_TreeBuilder[] = "TreeBuilder";
static const char __pyx_k_MSECriterion[] = "MSECriterion";
static const char __pyx_k_Tree_predict[] = "Tree.predict";
static const char __pyx_k_initializing[] = "_initializing";
static const char __pyx_k_is_coroutine[] = "_is_coroutine";
static const char __pyx_k_random_state[] = "random_state";
static const char __pyx_k_scipy_sparse[] = "scipy.sparse";
static const char __pyx_k_stringsource[] = "<stringsource>";
static const char __pyx_k_GiniCriterion[] = "GiniCriterion";
static const char __pyx_k_Tree___reduce[] = "Tree.__reduce__";
static const char __pyx_k_check_dataset[] = "check_dataset";
static const char __pyx_k_decision_path[] = "decision_path";
static const char __pyx_k_feature_value[] = "feature_value";
static const char __pyx_k_reduce_cython[] = "__reduce_cython__";
static const char __pyx_k_n_node_samples[] = "n_node_samples";
static const char __pyx_k_sample_weights[] = "sample_weights";
static const char __pyx_k_min_sample_leaf[] = "min_sample_leaf";
static const char __pyx_k_setstate_cython[] = "__setstate_cython__";
static const char __pyx_k_DISTANCE_MEASURE[] = "_DISTANCE_MEASURE";
static const char __pyx_k_EntropyCriterion[] = "EntropyCriterion";
static const char __pyx_k_ExtraTreeBuilder[] = "ExtraTreeBuilder";
static const char __pyx_k_feature_engineer[] = "feature_engineer";
static const char __pyx_k_min_sample_split[] = "min_sample_split";
static const char __pyx_k_unexpected_dtype[] = "unexpected dtype (";
static const char __pyx_k_unexpected_stride[] = "unexpected stride";
static const char __pyx_k_Tree_decision_path[] = "Tree.decision_path";
static const char __pyx_k_asyncio_coroutines[] = "asyncio.coroutines";
static const char __pyx_k_cline_in_traceback[] = "cline_in_traceback";
static const char __pyx_k_unexpected_dim_r_1[] = "unexpected dim (%r != 1)";
static const char __pyx_k_RegressionCriterion[] = "RegressionCriterion";
static const char __pyx_k_TreeFeatureEngineer[] = "TreeFeatureEngineer";
static const char __pyx_k_wildboar_tree__ctree[] = "wildboar.tree._ctree";
static const char __pyx_k_min_impurity_decrease[] = "min_impurity_decrease";
static const char __pyx_k_TreeBuilder_build_tree[] = "TreeBuilder.build_tree";
static const char __pyx_k_ClassificationCriterion[] = "ClassificationCriterion";
static const char __pyx_k_n_weighted_node_samples[] = "n_weighted_node_samples";
static const char __pyx_k_Criterion___reduce_cython[] = "Criterion.__reduce_cython__";
static const char __pyx_k_DynamicTreeFeatureEngineer[] = "DynamicTreeFeatureEngineer";
static const char __pyx_k_X_should_be_np_ndarray_got[] = "X should be np.ndarray, got ";
static const char __pyx_k_Criterion___setstate_cython[] = "Criterion.__setstate_cython__";
static const char __pyx_k_TreeBuilder___reduce_cython[] = "TreeBuilder.__reduce_cython__";
static const char __pyx_k_MSECriterion___reduce_cython[] = "MSECriterion.__reduce_cython__";
static const char __pyx_k_TreeFeatureEngineer___reduce[] = "TreeFeatureEngineer.__reduce__";
static const char __pyx_k_src_wildboar_tree__ctree_pyx[] = "src/wildboar/tree/_ctree.pyx";
static const char __pyx_k_unexpected_dtype_r_np_double[] = "unexpected dtype (%r != np.double)";
static const char __pyx_k_GiniCriterion___reduce_cython[] = "GiniCriterion.__reduce_cython__";
static const char __pyx_k_TreeBuilder___setstate_cython[] = "TreeBuilder.__setstate_cython__";
static const char __pyx_k_MSECriterion___setstate_cython[] = "MSECriterion.__setstate_cython__";
static const char __pyx_k_GiniCriterion___setstate_cython[] = "GiniCriterion.__setstate_cython__";
static const char __pyx_k_numpy_core_multiarray_failed_to[] = "numpy.core.multiarray failed to import";
static const char __pyx_k_self_sample_weight_self_samples[] = "self.sample_weight,self.samples cannot be converted to a Python object for pickling";
static const char __pyx_k_ClassificationCriterion___reduce[] = "ClassificationCriterion.__reduce_cython__";
static const char __pyx_k_ClassificationCriterion___setsta[] = "ClassificationCriterion.__setstate_cython__";
static const char __pyx_k_DynamicTreeFeatureEngineer___red[] = "DynamicTreeFeatureEngineer.__reduce__";
static const char __pyx_k_EntropyCriterion___reduce_cython[] = "EntropyCriterion.__reduce_cython__";
static const char __pyx_k_EntropyCriterion___setstate_cyth[] = "EntropyCriterion.__setstate_cython__";
static const char __pyx_k_ExtraTreeBuilder___reduce_cython[] = "ExtraTreeBuilder.__reduce_cython__";
static const char __pyx_k_ExtraTreeBuilder___setstate_cyth[] = "ExtraTreeBuilder.__setstate_cython__";
static const char __pyx_k_RegressionCriterion___reduce_cyt[] = "RegressionCriterion.__reduce_cython__";
static const char __pyx_k_RegressionCriterion___setstate_c[] = "RegressionCriterion.__setstate_cython__";
static const char __pyx_k_no_default___reduce___due_to_non[] = "no default __reduce__ due to non-trivial __cinit__";
static const char __pyx_k_numpy_core_umath_failed_to_impor[] = "numpy.core.umath failed to import";
/* #### Code section: decls ### */
static int __pyx_pf_8wildboar_4tree_6_ctree_19TreeFeatureEngineer___init__(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *__pyx_v_feature_engineer); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_2__reduce__(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self); /* proto */
static int __pyx_pf_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer___init__(struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer *__pyx_v_self, struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *__pyx_v_feature_engineer, double __pyx_v_alpha); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_2__reduce__(struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_9Criterion___reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_9Criterion_2__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state); /* proto */
static int __pyx_pf_8wildboar_4tree_6_ctree_23ClassificationCriterion___cinit__(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self, PyArrayObject *__pyx_v_y, Py_ssize_t __pyx_v_n_labels); /* proto */
static void __pyx_pf_8wildboar_4tree_6_ctree_23ClassificationCriterion_2__dealloc__(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_23ClassificationCriterion_4__reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_23ClassificationCriterion_6__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_13GiniCriterion___reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_13GiniCriterion_2__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_16EntropyCriterion___reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_16EntropyCriterion_2__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state); /* proto */
static int __pyx_pf_8wildboar_4tree_6_ctree_19RegressionCriterion___cinit__(struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self, PyArrayObject *__pyx_v_y); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_19RegressionCriterion_2__reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_19RegressionCriterion_4__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_12MSECriterion___reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_12MSECriterion_2__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree__make_tree(CYTHON_UNUSED PyObject *__pyx_self, struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_feature_engineer, Py_ssize_t __pyx_v_n_labels, Py_ssize_t __pyx_v_max_depth, PyObject *__pyx_v_features, PyArrayObject *__pyx_v_threshold, PyArrayObject *__pyx_v_value, PyArrayObject *__pyx_v_left, PyArrayObject *__pyx_v_right, PyArrayObject *__pyx_v_impurity, PyArrayObject *__pyx_v_n_node_samples, PyArrayObject *__pyx_v_n_weighted_node_samples); /* proto */
static int __pyx_pf_8wildboar_4tree_6_ctree_4Tree___cinit__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_feature_engineer, Py_ssize_t __pyx_v_n_labels, Py_ssize_t __pyx_v_capacity); /* proto */
static void __pyx_pf_8wildboar_4tree_6_ctree_4Tree_2__dealloc__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_4__reduce__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_9max_depth___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_5value___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_7feature___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_14n_node_samples___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_23n_weighted_node_samples___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_4left___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_5right___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_9threshold___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_8impurity___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_6predict(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, PyObject *__pyx_v_X); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_8apply(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, PyObject *__pyx_v_X); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_10decision_path(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, PyObject *__pyx_v_X); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_10node_count___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self); /* proto */
static int __pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder___cinit__(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, PyArrayObject *__pyx_v_X, PyArrayObject *__pyx_v_sample_weights, struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_feature_engineer, struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_criterion, struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_tree, PyObject *__pyx_v_random_state, Py_ssize_t __pyx_v_max_depth, Py_ssize_t __pyx_v_min_sample_split, Py_ssize_t __pyx_v_min_sample_leaf, double __pyx_v_min_impurity_decrease); /* proto */
static void __pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_2__dealloc__(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_5tree____get__(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_4build_tree(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_6__reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_8__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_16ExtraTreeBuilder___reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder *__pyx_v_self); /* proto */
static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_2__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state); /* proto */
static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_TreeFeatureEngineer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_Criterion(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_ClassificationCriterion(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_GiniCriterion(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_EntropyCriterion(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_RegressionCriterion(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_MSECriterion(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_Tree(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_TreeBuilder(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_ExtraTreeBuilder(PyTypeObject *t, PyObject *a, PyObject *k); /*proto*/
/* #### Code section: late_includes ### */
/* #### Code section: module_state ### */
typedef struct {
  PyObject *__pyx_d;
  PyObject *__pyx_b;
  PyObject *__pyx_cython_runtime;
  PyObject *__pyx_empty_tuple;
  PyObject *__pyx_empty_bytes;
  PyObject *__pyx_empty_unicode;
  #ifdef __Pyx_CyFunction_USED
  PyTypeObject *__pyx_CyFunctionType;
  #endif
  #ifdef __Pyx_FusedFunction_USED
  PyTypeObject *__pyx_FusedFunctionType;
  #endif
  #ifdef __Pyx_Generator_USED
  PyTypeObject *__pyx_GeneratorType;
  #endif
  #ifdef __Pyx_IterableCoroutine_USED
  PyTypeObject *__pyx_IterableCoroutineType;
  #endif
  #ifdef __Pyx_Coroutine_USED
  PyTypeObject *__pyx_CoroutineAwaitType;
  #endif
  #ifdef __Pyx_Coroutine_USED
  PyTypeObject *__pyx_CoroutineType;
  #endif
  #if CYTHON_USE_MODULE_STATE
  #endif
  #if CYTHON_USE_MODULE_STATE
  #endif
  #if CYTHON_USE_MODULE_STATE
  #endif
  #if CYTHON_USE_MODULE_STATE
  #endif
  PyTypeObject *__pyx_ptype_7cpython_4type_type;
  #if CYTHON_USE_MODULE_STATE
  #endif
  #if CYTHON_USE_MODULE_STATE
  #endif
  #if CYTHON_USE_MODULE_STATE
  #endif
  #if CYTHON_USE_MODULE_STATE
  #endif
  #if CYTHON_USE_MODULE_STATE
  #endif
  PyTypeObject *__pyx_ptype_5numpy_dtype;
  PyTypeObject *__pyx_ptype_5numpy_flatiter;
  PyTypeObject *__pyx_ptype_5numpy_broadcast;
  PyTypeObject *__pyx_ptype_5numpy_ndarray;
  PyTypeObject *__pyx_ptype_5numpy_generic;
  PyTypeObject *__pyx_ptype_5numpy_number;
  PyTypeObject *__pyx_ptype_5numpy_integer;
  PyTypeObject *__pyx_ptype_5numpy_signedinteger;
  PyTypeObject *__pyx_ptype_5numpy_unsignedinteger;
  PyTypeObject *__pyx_ptype_5numpy_inexact;
  PyTypeObject *__pyx_ptype_5numpy_floating;
  PyTypeObject *__pyx_ptype_5numpy_complexfloating;
  PyTypeObject *__pyx_ptype_5numpy_flexible;
  PyTypeObject *__pyx_ptype_5numpy_character;
  PyTypeObject *__pyx_ptype_5numpy_ufunc;
  #if CYTHON_USE_MODULE_STATE
  #endif
  #if CYTHON_USE_MODULE_STATE
  #endif
  #if CYTHON_USE_MODULE_STATE
  #endif
  PyTypeObject *__pyx_ptype_8wildboar_5utils_4data_Dataset;
  #if CYTHON_USE_MODULE_STATE
  #endif
  PyTypeObject *__pyx_ptype_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure;
  PyTypeObject *__pyx_ptype_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure;
  PyTypeObject *__pyx_ptype_8wildboar_8distance_9_distance_DistanceMeasure;
  #if CYTHON_USE_MODULE_STATE
  #endif
  PyTypeObject *__pyx_ptype_8wildboar_9transform_8_feature_FeatureEngineer;
  #if CYTHON_USE_MODULE_STATE
  #endif
  PyTypeObject *__pyx_ptype_8wildboar_5utils_4misc_CList;
  #if CYTHON_USE_MODULE_STATE
  #endif
  #if CYTHON_USE_MODULE_STATE
  PyObject *__pyx_type_8wildboar_4tree_6_ctree_TreeFeatureEngineer;
  PyObject *__pyx_type_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer;
  PyObject *__pyx_type_8wildboar_4tree_6_ctree_Criterion;
  PyObject *__pyx_type_8wildboar_4tree_6_ctree_ClassificationCriterion;
  PyObject *__pyx_type_8wildboar_4tree_6_ctree_GiniCriterion;
  PyObject *__pyx_type_8wildboar_4tree_6_ctree_EntropyCriterion;
  PyObject *__pyx_type_8wildboar_4tree_6_ctree_RegressionCriterion;
  PyObject *__pyx_type_8wildboar_4tree_6_ctree_MSECriterion;
  PyObject *__pyx_type_8wildboar_4tree_6_ctree_Tree;
  PyObject *__pyx_type_8wildboar_4tree_6_ctree_TreeBuilder;
  PyObject *__pyx_type_8wildboar_4tree_6_ctree_ExtraTreeBuilder;
  #endif
  PyTypeObject *__pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer;
  PyTypeObject *__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer;
  PyTypeObject *__pyx_ptype_8wildboar_4tree_6_ctree_Criterion;
  PyTypeObject *__pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion;
  PyTypeObject *__pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion;
  PyTypeObject *__pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion;
  PyTypeObject *__pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion;
  PyTypeObject *__pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion;
  PyTypeObject *__pyx_ptype_8wildboar_4tree_6_ctree_Tree;
  PyTypeObject *__pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder;
  PyTypeObject *__pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder;
  PyObject *__pyx_n_s_ClassificationCriterion;
  PyObject *__pyx_n_s_ClassificationCriterion___reduce;
  PyObject *__pyx_n_s_ClassificationCriterion___setsta;
  PyObject *__pyx_n_s_Criterion;
  PyObject *__pyx_n_s_Criterion___reduce_cython;
  PyObject *__pyx_n_s_Criterion___setstate_cython;
  PyObject *__pyx_n_s_DISTANCE_MEASURE;
  PyObject *__pyx_n_s_DynamicTreeFeatureEngineer;
  PyObject *__pyx_n_s_DynamicTreeFeatureEngineer___red;
  PyObject *__pyx_n_s_EntropyCriterion;
  PyObject *__pyx_n_s_EntropyCriterion___reduce_cython;
  PyObject *__pyx_n_s_EntropyCriterion___setstate_cyth;
  PyObject *__pyx_n_s_ExtraTreeBuilder;
  PyObject *__pyx_n_s_ExtraTreeBuilder___reduce_cython;
  PyObject *__pyx_n_s_ExtraTreeBuilder___setstate_cyth;
  PyObject *__pyx_n_s_GiniCriterion;
  PyObject *__pyx_n_s_GiniCriterion___reduce_cython;
  PyObject *__pyx_n_s_GiniCriterion___setstate_cython;
  PyObject *__pyx_n_s_ImportError;
  PyObject *__pyx_n_s_MSECriterion;
  PyObject *__pyx_n_s_MSECriterion___reduce_cython;
  PyObject *__pyx_n_s_MSECriterion___setstate_cython;
  PyObject *__pyx_n_s_MemoryError;
  PyObject *__pyx_n_s_RegressionCriterion;
  PyObject *__pyx_n_s_RegressionCriterion___reduce_cyt;
  PyObject *__pyx_n_s_RegressionCriterion___setstate_c;
  PyObject *__pyx_n_s_Tree;
  PyObject *__pyx_n_s_TreeBuilder;
  PyObject *__pyx_n_s_TreeBuilder___reduce_cython;
  PyObject *__pyx_n_s_TreeBuilder___setstate_cython;
  PyObject *__pyx_n_s_TreeBuilder_build_tree;
  PyObject *__pyx_n_s_TreeFeatureEngineer;
  PyObject *__pyx_n_s_TreeFeatureEngineer___reduce;
  PyObject *__pyx_n_s_Tree___reduce;
  PyObject *__pyx_n_s_Tree_apply;
  PyObject *__pyx_n_s_Tree_decision_path;
  PyObject *__pyx_n_s_Tree_predict;
  PyObject *__pyx_n_s_TypeError;
  PyObject *__pyx_n_s_ValueError;
  PyObject *__pyx_n_s_X;
  PyObject *__pyx_kp_u_X_should_be_np_ndarray_got;
  PyObject *__pyx_kp_u__3;
  PyObject *__pyx_n_s__38;
  PyObject *__pyx_kp_u__4;
  PyObject *__pyx_n_s__6;
  PyObject *__pyx_kp_u__7;
  PyObject *__pyx_n_s_alpha;
  PyObject *__pyx_n_s_apply;
  PyObject *__pyx_n_s_asyncio_coroutines;
  PyObject *__pyx_n_s_axis;
  PyObject *__pyx_n_s_build_tree;
  PyObject *__pyx_n_u_c;
  PyObject *__pyx_n_s_capacity;
  PyObject *__pyx_n_s_check_dataset;
  PyObject *__pyx_n_s_class;
  PyObject *__pyx_n_s_cline_in_traceback;
  PyObject *__pyx_n_u_clip;
  PyObject *__pyx_n_s_criterion;
  PyObject *__pyx_n_s_csr_matrix;
  PyObject *__pyx_n_s_decision_path;
  PyObject *__pyx_kp_u_disable;
  PyObject *__pyx_n_s_distance;
  PyObject *__pyx_n_s_double;
  PyObject *__pyx_n_s_dtype;
  PyObject *__pyx_n_s_empty;
  PyObject *__pyx_kp_u_enable;
  PyObject *__pyx_n_s_feature;
  PyObject *__pyx_n_s_feature_engineer;
  PyObject *__pyx_n_s_feature_value;
  PyObject *__pyx_n_s_features;
  PyObject *__pyx_kp_u_gc;
  PyObject *__pyx_n_s_getstate;
  PyObject *__pyx_n_s_i;
  PyObject *__pyx_n_s_i_stride;
  PyObject *__pyx_n_s_import;
  PyObject *__pyx_n_s_impurity;
  PyObject *__pyx_n_s_init;
  PyObject *__pyx_n_s_initializing;
  PyObject *__pyx_n_s_intc;
  PyObject *__pyx_n_s_intp;
  PyObject *__pyx_n_s_is_coroutine;
  PyObject *__pyx_kp_u_isenabled;
  PyObject *__pyx_n_s_itemsize;
  PyObject *__pyx_n_s_left;
  PyObject *__pyx_n_s_main;
  PyObject *__pyx_n_s_make_tree;
  PyObject *__pyx_n_s_max_depth;
  PyObject *__pyx_n_s_min_impurity_decrease;
  PyObject *__pyx_n_s_min_sample_leaf;
  PyObject *__pyx_n_s_min_sample_split;
  PyObject *__pyx_n_s_mode;
  PyObject *__pyx_n_s_n_labels;
  PyObject *__pyx_n_s_n_node_samples;
  PyObject *__pyx_n_s_n_stride;
  PyObject *__pyx_n_s_n_weighted_node_samples;
  PyObject *__pyx_n_s_name;
  PyObject *__pyx_kp_s_no_default___reduce___due_to_non;
  PyObject *__pyx_n_s_node_count;
  PyObject *__pyx_n_s_node_index;
  PyObject *__pyx_n_s_np;
  PyObject *__pyx_n_s_numpy;
  PyObject *__pyx_kp_u_numpy_core_multiarray_failed_to;
  PyObject *__pyx_kp_u_numpy_core_umath_failed_to_impor;
  PyObject *__pyx_n_s_order;
  PyObject *__pyx_n_s_out;
  PyObject *__pyx_n_s_out_data;
  PyObject *__pyx_n_s_predict;
  PyObject *__pyx_n_s_pyx_state;
  PyObject *__pyx_n_s_pyx_vtable;
  PyObject *__pyx_n_s_randint;
  PyObject *__pyx_n_s_random_state;
  PyObject *__pyx_n_s_range;
  PyObject *__pyx_n_s_reduce;
  PyObject *__pyx_n_s_reduce_cython;
  PyObject *__pyx_n_s_reduce_ex;
  PyObject *__pyx_n_s_reshape;
  PyObject *__pyx_n_s_right;
  PyObject *__pyx_n_s_sample_weights;
  PyObject *__pyx_n_s_scipy_sparse;
  PyObject *__pyx_n_s_self;
  PyObject *__pyx_kp_s_self_sample_weight_self_samples;
  PyObject *__pyx_n_s_setstate;
  PyObject *__pyx_n_s_setstate_cython;
  PyObject *__pyx_n_s_spec;
  PyObject *__pyx_kp_s_src_wildboar_tree__ctree_pyx;
  PyObject *__pyx_kp_s_stringsource;
  PyObject *__pyx_n_s_super;
  PyObject *__pyx_n_s_take;
  PyObject *__pyx_n_s_test;
  PyObject *__pyx_n_s_threshold;
  PyObject *__pyx_n_s_tree;
  PyObject *__pyx_n_s_ts;
  PyObject *__pyx_kp_u_unexpected_dim_r_1;
  PyObject *__pyx_kp_u_unexpected_dtype;
  PyObject *__pyx_kp_u_unexpected_dtype_r_np_double;
  PyObject *__pyx_kp_u_unexpected_stride;
  PyObject *__pyx_n_s_utils_data;
  PyObject *__pyx_n_s_value;
  PyObject *__pyx_n_s_wildboar_tree__ctree;
  PyObject *__pyx_n_s_y;
  PyObject *__pyx_n_s_zeros;
  PyObject *__pyx_float_0_0;
  PyObject *__pyx_int_0;
  PyObject *__pyx_int_1;
  PyObject *__pyx_int_neg_1;
  PyObject *__pyx_tuple_;
  PyObject *__pyx_tuple__2;
  PyObject *__pyx_tuple__5;
  PyObject *__pyx_tuple__8;
  PyObject *__pyx_tuple__12;
  PyObject *__pyx_tuple__24;
  PyObject *__pyx_tuple__27;
  PyObject *__pyx_tuple__29;
  PyObject *__pyx_tuple__31;
  PyObject *__pyx_codeobj__9;
  PyObject *__pyx_codeobj__10;
  PyObject *__pyx_codeobj__11;
  PyObject *__pyx_codeobj__13;
  PyObject *__pyx_codeobj__14;
  PyObject *__pyx_codeobj__15;
  PyObject *__pyx_codeobj__16;
  PyObject *__pyx_codeobj__17;
  PyObject *__pyx_codeobj__18;
  PyObject *__pyx_codeobj__19;
  PyObject *__pyx_codeobj__20;
  PyObject *__pyx_codeobj__21;
  PyObject *__pyx_codeobj__22;
  PyObject *__pyx_codeobj__23;
  PyObject *__pyx_codeobj__25;
  PyObject *__pyx_codeobj__26;
  PyObject *__pyx_codeobj__28;
  PyObject *__pyx_codeobj__30;
  PyObject *__pyx_codeobj__32;
  PyObject *__pyx_codeobj__33;
  PyObject *__pyx_codeobj__34;
  PyObject *__pyx_codeobj__35;
  PyObject *__pyx_codeobj__36;
  PyObject *__pyx_codeobj__37;
} __pyx_mstate;

#if CYTHON_USE_MODULE_STATE
#ifdef __cplusplus
namespace {
  extern struct PyModuleDef __pyx_moduledef;
} /* anonymous namespace */
#else
static struct PyModuleDef __pyx_moduledef;
#endif

#define __pyx_mstate(o) ((__pyx_mstate *)__Pyx_PyModule_GetState(o))

#define __pyx_mstate_global (__pyx_mstate(PyState_FindModule(&__pyx_moduledef)))

#define __pyx_m (PyState_FindModule(&__pyx_moduledef))
#else
static __pyx_mstate __pyx_mstate_global_static =
#ifdef __cplusplus
    {};
#else
    {0};
#endif
static __pyx_mstate *__pyx_mstate_global = &__pyx_mstate_global_static;
#endif
/* #### Code section: module_state_clear ### */
#if CYTHON_USE_MODULE_STATE
static int __pyx_m_clear(PyObject *m) {
  __pyx_mstate *clear_module_state = __pyx_mstate(m);
  if (!clear_module_state) return 0;
  Py_CLEAR(clear_module_state->__pyx_d);
  Py_CLEAR(clear_module_state->__pyx_b);
  Py_CLEAR(clear_module_state->__pyx_cython_runtime);
  Py_CLEAR(clear_module_state->__pyx_empty_tuple);
  Py_CLEAR(clear_module_state->__pyx_empty_bytes);
  Py_CLEAR(clear_module_state->__pyx_empty_unicode);
  #ifdef __Pyx_CyFunction_USED
  Py_CLEAR(clear_module_state->__pyx_CyFunctionType);
  #endif
  #ifdef __Pyx_FusedFunction_USED
  Py_CLEAR(clear_module_state->__pyx_FusedFunctionType);
  #endif
  Py_CLEAR(clear_module_state->__pyx_ptype_7cpython_4type_type);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_dtype);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_flatiter);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_broadcast);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_ndarray);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_generic);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_number);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_integer);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_signedinteger);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_unsignedinteger);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_inexact);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_floating);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_complexfloating);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_flexible);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_character);
  Py_CLEAR(clear_module_state->__pyx_ptype_5numpy_ufunc);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_5utils_4data_Dataset);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_8distance_9_distance_DistanceMeasure);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_9transform_8_feature_FeatureEngineer);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_5utils_4misc_CList);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer);
  Py_CLEAR(clear_module_state->__pyx_type_8wildboar_4tree_6_ctree_TreeFeatureEngineer);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer);
  Py_CLEAR(clear_module_state->__pyx_type_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_Criterion);
  Py_CLEAR(clear_module_state->__pyx_type_8wildboar_4tree_6_ctree_Criterion);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion);
  Py_CLEAR(clear_module_state->__pyx_type_8wildboar_4tree_6_ctree_ClassificationCriterion);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion);
  Py_CLEAR(clear_module_state->__pyx_type_8wildboar_4tree_6_ctree_GiniCriterion);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion);
  Py_CLEAR(clear_module_state->__pyx_type_8wildboar_4tree_6_ctree_EntropyCriterion);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion);
  Py_CLEAR(clear_module_state->__pyx_type_8wildboar_4tree_6_ctree_RegressionCriterion);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion);
  Py_CLEAR(clear_module_state->__pyx_type_8wildboar_4tree_6_ctree_MSECriterion);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_Tree);
  Py_CLEAR(clear_module_state->__pyx_type_8wildboar_4tree_6_ctree_Tree);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder);
  Py_CLEAR(clear_module_state->__pyx_type_8wildboar_4tree_6_ctree_TreeBuilder);
  Py_CLEAR(clear_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder);
  Py_CLEAR(clear_module_state->__pyx_type_8wildboar_4tree_6_ctree_ExtraTreeBuilder);
  Py_CLEAR(clear_module_state->__pyx_n_s_ClassificationCriterion);
  Py_CLEAR(clear_module_state->__pyx_n_s_ClassificationCriterion___reduce);
  Py_CLEAR(clear_module_state->__pyx_n_s_ClassificationCriterion___setsta);
  Py_CLEAR(clear_module_state->__pyx_n_s_Criterion);
  Py_CLEAR(clear_module_state->__pyx_n_s_Criterion___reduce_cython);
  Py_CLEAR(clear_module_state->__pyx_n_s_Criterion___setstate_cython);
  Py_CLEAR(clear_module_state->__pyx_n_s_DISTANCE_MEASURE);
  Py_CLEAR(clear_module_state->__pyx_n_s_DynamicTreeFeatureEngineer);
  Py_CLEAR(clear_module_state->__pyx_n_s_DynamicTreeFeatureEngineer___red);
  Py_CLEAR(clear_module_state->__pyx_n_s_EntropyCriterion);
  Py_CLEAR(clear_module_state->__pyx_n_s_EntropyCriterion___reduce_cython);
  Py_CLEAR(clear_module_state->__pyx_n_s_EntropyCriterion___setstate_cyth);
  Py_CLEAR(clear_module_state->__pyx_n_s_ExtraTreeBuilder);
  Py_CLEAR(clear_module_state->__pyx_n_s_ExtraTreeBuilder___reduce_cython);
  Py_CLEAR(clear_module_state->__pyx_n_s_ExtraTreeBuilder___setstate_cyth);
  Py_CLEAR(clear_module_state->__pyx_n_s_GiniCriterion);
  Py_CLEAR(clear_module_state->__pyx_n_s_GiniCriterion___reduce_cython);
  Py_CLEAR(clear_module_state->__pyx_n_s_GiniCriterion___setstate_cython);
  Py_CLEAR(clear_module_state->__pyx_n_s_ImportError);
  Py_CLEAR(clear_module_state->__pyx_n_s_MSECriterion);
  Py_CLEAR(clear_module_state->__pyx_n_s_MSECriterion___reduce_cython);
  Py_CLEAR(clear_module_state->__pyx_n_s_MSECriterion___setstate_cython);
  Py_CLEAR(clear_module_state->__pyx_n_s_MemoryError);
  Py_CLEAR(clear_module_state->__pyx_n_s_RegressionCriterion);
  Py_CLEAR(clear_module_state->__pyx_n_s_RegressionCriterion___reduce_cyt);
  Py_CLEAR(clear_module_state->__pyx_n_s_RegressionCriterion___setstate_c);
  Py_CLEAR(clear_module_state->__pyx_n_s_Tree);
  Py_CLEAR(clear_module_state->__pyx_n_s_TreeBuilder);
  Py_CLEAR(clear_module_state->__pyx_n_s_TreeBuilder___reduce_cython);
  Py_CLEAR(clear_module_state->__pyx_n_s_TreeBuilder___setstate_cython);
  Py_CLEAR(clear_module_state->__pyx_n_s_TreeBuilder_build_tree);
  Py_CLEAR(clear_module_state->__pyx_n_s_TreeFeatureEngineer);
  Py_CLEAR(clear_module_state->__pyx_n_s_TreeFeatureEngineer___reduce);
  Py_CLEAR(clear_module_state->__pyx_n_s_Tree___reduce);
  Py_CLEAR(clear_module_state->__pyx_n_s_Tree_apply);
  Py_CLEAR(clear_module_state->__pyx_n_s_Tree_decision_path);
  Py_CLEAR(clear_module_state->__pyx_n_s_Tree_predict);
  Py_CLEAR(clear_module_state->__pyx_n_s_TypeError);
  Py_CLEAR(clear_module_state->__pyx_n_s_ValueError);
  Py_CLEAR(clear_module_state->__pyx_n_s_X);
  Py_CLEAR(clear_module_state->__pyx_kp_u_X_should_be_np_ndarray_got);
  Py_CLEAR(clear_module_state->__pyx_kp_u__3);
  Py_CLEAR(clear_module_state->__pyx_n_s__38);
  Py_CLEAR(clear_module_state->__pyx_kp_u__4);
  Py_CLEAR(clear_module_state->__pyx_n_s__6);
  Py_CLEAR(clear_module_state->__pyx_kp_u__7);
  Py_CLEAR(clear_module_state->__pyx_n_s_alpha);
  Py_CLEAR(clear_module_state->__pyx_n_s_apply);
  Py_CLEAR(clear_module_state->__pyx_n_s_asyncio_coroutines);
  Py_CLEAR(clear_module_state->__pyx_n_s_axis);
  Py_CLEAR(clear_module_state->__pyx_n_s_build_tree);
  Py_CLEAR(clear_module_state->__pyx_n_u_c);
  Py_CLEAR(clear_module_state->__pyx_n_s_capacity);
  Py_CLEAR(clear_module_state->__pyx_n_s_check_dataset);
  Py_CLEAR(clear_module_state->__pyx_n_s_class);
  Py_CLEAR(clear_module_state->__pyx_n_s_cline_in_traceback);
  Py_CLEAR(clear_module_state->__pyx_n_u_clip);
  Py_CLEAR(clear_module_state->__pyx_n_s_criterion);
  Py_CLEAR(clear_module_state->__pyx_n_s_csr_matrix);
  Py_CLEAR(clear_module_state->__pyx_n_s_decision_path);
  Py_CLEAR(clear_module_state->__pyx_kp_u_disable);
  Py_CLEAR(clear_module_state->__pyx_n_s_distance);
  Py_CLEAR(clear_module_state->__pyx_n_s_double);
  Py_CLEAR(clear_module_state->__pyx_n_s_dtype);
  Py_CLEAR(clear_module_state->__pyx_n_s_empty);
  Py_CLEAR(clear_module_state->__pyx_kp_u_enable);
  Py_CLEAR(clear_module_state->__pyx_n_s_feature);
  Py_CLEAR(clear_module_state->__pyx_n_s_feature_engineer);
  Py_CLEAR(clear_module_state->__pyx_n_s_feature_value);
  Py_CLEAR(clear_module_state->__pyx_n_s_features);
  Py_CLEAR(clear_module_state->__pyx_kp_u_gc);
  Py_CLEAR(clear_module_state->__pyx_n_s_getstate);
  Py_CLEAR(clear_module_state->__pyx_n_s_i);
  Py_CLEAR(clear_module_state->__pyx_n_s_i_stride);
  Py_CLEAR(clear_module_state->__pyx_n_s_import);
  Py_CLEAR(clear_module_state->__pyx_n_s_impurity);
  Py_CLEAR(clear_module_state->__pyx_n_s_init);
  Py_CLEAR(clear_module_state->__pyx_n_s_initializing);
  Py_CLEAR(clear_module_state->__pyx_n_s_intc);
  Py_CLEAR(clear_module_state->__pyx_n_s_intp);
  Py_CLEAR(clear_module_state->__pyx_n_s_is_coroutine);
  Py_CLEAR(clear_module_state->__pyx_kp_u_isenabled);
  Py_CLEAR(clear_module_state->__pyx_n_s_itemsize);
  Py_CLEAR(clear_module_state->__pyx_n_s_left);
  Py_CLEAR(clear_module_state->__pyx_n_s_main);
  Py_CLEAR(clear_module_state->__pyx_n_s_make_tree);
  Py_CLEAR(clear_module_state->__pyx_n_s_max_depth);
  Py_CLEAR(clear_module_state->__pyx_n_s_min_impurity_decrease);
  Py_CLEAR(clear_module_state->__pyx_n_s_min_sample_leaf);
  Py_CLEAR(clear_module_state->__pyx_n_s_min_sample_split);
  Py_CLEAR(clear_module_state->__pyx_n_s_mode);
  Py_CLEAR(clear_module_state->__pyx_n_s_n_labels);
  Py_CLEAR(clear_module_state->__pyx_n_s_n_node_samples);
  Py_CLEAR(clear_module_state->__pyx_n_s_n_stride);
  Py_CLEAR(clear_module_state->__pyx_n_s_n_weighted_node_samples);
  Py_CLEAR(clear_module_state->__pyx_n_s_name);
  Py_CLEAR(clear_module_state->__pyx_kp_s_no_default___reduce___due_to_non);
  Py_CLEAR(clear_module_state->__pyx_n_s_node_count);
  Py_CLEAR(clear_module_state->__pyx_n_s_node_index);
  Py_CLEAR(clear_module_state->__pyx_n_s_np);
  Py_CLEAR(clear_module_state->__pyx_n_s_numpy);
  Py_CLEAR(clear_module_state->__pyx_kp_u_numpy_core_multiarray_failed_to);
  Py_CLEAR(clear_module_state->__pyx_kp_u_numpy_core_umath_failed_to_impor);
  Py_CLEAR(clear_module_state->__pyx_n_s_order);
  Py_CLEAR(clear_module_state->__pyx_n_s_out);
  Py_CLEAR(clear_module_state->__pyx_n_s_out_data);
  Py_CLEAR(clear_module_state->__pyx_n_s_predict);
  Py_CLEAR(clear_module_state->__pyx_n_s_pyx_state);
  Py_CLEAR(clear_module_state->__pyx_n_s_pyx_vtable);
  Py_CLEAR(clear_module_state->__pyx_n_s_randint);
  Py_CLEAR(clear_module_state->__pyx_n_s_random_state);
  Py_CLEAR(clear_module_state->__pyx_n_s_range);
  Py_CLEAR(clear_module_state->__pyx_n_s_reduce);
  Py_CLEAR(clear_module_state->__pyx_n_s_reduce_cython);
  Py_CLEAR(clear_module_state->__pyx_n_s_reduce_ex);
  Py_CLEAR(clear_module_state->__pyx_n_s_reshape);
  Py_CLEAR(clear_module_state->__pyx_n_s_right);
  Py_CLEAR(clear_module_state->__pyx_n_s_sample_weights);
  Py_CLEAR(clear_module_state->__pyx_n_s_scipy_sparse);
  Py_CLEAR(clear_module_state->__pyx_n_s_self);
  Py_CLEAR(clear_module_state->__pyx_kp_s_self_sample_weight_self_samples);
  Py_CLEAR(clear_module_state->__pyx_n_s_setstate);
  Py_CLEAR(clear_module_state->__pyx_n_s_setstate_cython);
  Py_CLEAR(clear_module_state->__pyx_n_s_spec);
  Py_CLEAR(clear_module_state->__pyx_kp_s_src_wildboar_tree__ctree_pyx);
  Py_CLEAR(clear_module_state->__pyx_kp_s_stringsource);
  Py_CLEAR(clear_module_state->__pyx_n_s_super);
  Py_CLEAR(clear_module_state->__pyx_n_s_take);
  Py_CLEAR(clear_module_state->__pyx_n_s_test);
  Py_CLEAR(clear_module_state->__pyx_n_s_threshold);
  Py_CLEAR(clear_module_state->__pyx_n_s_tree);
  Py_CLEAR(clear_module_state->__pyx_n_s_ts);
  Py_CLEAR(clear_module_state->__pyx_kp_u_unexpected_dim_r_1);
  Py_CLEAR(clear_module_state->__pyx_kp_u_unexpected_dtype);
  Py_CLEAR(clear_module_state->__pyx_kp_u_unexpected_dtype_r_np_double);
  Py_CLEAR(clear_module_state->__pyx_kp_u_unexpected_stride);
  Py_CLEAR(clear_module_state->__pyx_n_s_utils_data);
  Py_CLEAR(clear_module_state->__pyx_n_s_value);
  Py_CLEAR(clear_module_state->__pyx_n_s_wildboar_tree__ctree);
  Py_CLEAR(clear_module_state->__pyx_n_s_y);
  Py_CLEAR(clear_module_state->__pyx_n_s_zeros);
  Py_CLEAR(clear_module_state->__pyx_float_0_0);
  Py_CLEAR(clear_module_state->__pyx_int_0);
  Py_CLEAR(clear_module_state->__pyx_int_1);
  Py_CLEAR(clear_module_state->__pyx_int_neg_1);
  Py_CLEAR(clear_module_state->__pyx_tuple_);
  Py_CLEAR(clear_module_state->__pyx_tuple__2);
  Py_CLEAR(clear_module_state->__pyx_tuple__5);
  Py_CLEAR(clear_module_state->__pyx_tuple__8);
  Py_CLEAR(clear_module_state->__pyx_tuple__12);
  Py_CLEAR(clear_module_state->__pyx_tuple__24);
  Py_CLEAR(clear_module_state->__pyx_tuple__27);
  Py_CLEAR(clear_module_state->__pyx_tuple__29);
  Py_CLEAR(clear_module_state->__pyx_tuple__31);
  Py_CLEAR(clear_module_state->__pyx_codeobj__9);
  Py_CLEAR(clear_module_state->__pyx_codeobj__10);
  Py_CLEAR(clear_module_state->__pyx_codeobj__11);
  Py_CLEAR(clear_module_state->__pyx_codeobj__13);
  Py_CLEAR(clear_module_state->__pyx_codeobj__14);
  Py_CLEAR(clear_module_state->__pyx_codeobj__15);
  Py_CLEAR(clear_module_state->__pyx_codeobj__16);
  Py_CLEAR(clear_module_state->__pyx_codeobj__17);
  Py_CLEAR(clear_module_state->__pyx_codeobj__18);
  Py_CLEAR(clear_module_state->__pyx_codeobj__19);
  Py_CLEAR(clear_module_state->__pyx_codeobj__20);
  Py_CLEAR(clear_module_state->__pyx_codeobj__21);
  Py_CLEAR(clear_module_state->__pyx_codeobj__22);
  Py_CLEAR(clear_module_state->__pyx_codeobj__23);
  Py_CLEAR(clear_module_state->__pyx_codeobj__25);
  Py_CLEAR(clear_module_state->__pyx_codeobj__26);
  Py_CLEAR(clear_module_state->__pyx_codeobj__28);
  Py_CLEAR(clear_module_state->__pyx_codeobj__30);
  Py_CLEAR(clear_module_state->__pyx_codeobj__32);
  Py_CLEAR(clear_module_state->__pyx_codeobj__33);
  Py_CLEAR(clear_module_state->__pyx_codeobj__34);
  Py_CLEAR(clear_module_state->__pyx_codeobj__35);
  Py_CLEAR(clear_module_state->__pyx_codeobj__36);
  Py_CLEAR(clear_module_state->__pyx_codeobj__37);
  return 0;
}
#endif
/* #### Code section: module_state_traverse ### */
#if CYTHON_USE_MODULE_STATE
static int __pyx_m_traverse(PyObject *m, visitproc visit, void *arg) {
  __pyx_mstate *traverse_module_state = __pyx_mstate(m);
  if (!traverse_module_state) return 0;
  Py_VISIT(traverse_module_state->__pyx_d);
  Py_VISIT(traverse_module_state->__pyx_b);
  Py_VISIT(traverse_module_state->__pyx_cython_runtime);
  Py_VISIT(traverse_module_state->__pyx_empty_tuple);
  Py_VISIT(traverse_module_state->__pyx_empty_bytes);
  Py_VISIT(traverse_module_state->__pyx_empty_unicode);
  #ifdef __Pyx_CyFunction_USED
  Py_VISIT(traverse_module_state->__pyx_CyFunctionType);
  #endif
  #ifdef __Pyx_FusedFunction_USED
  Py_VISIT(traverse_module_state->__pyx_FusedFunctionType);
  #endif
  Py_VISIT(traverse_module_state->__pyx_ptype_7cpython_4type_type);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_dtype);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_flatiter);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_broadcast);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_ndarray);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_generic);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_number);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_integer);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_signedinteger);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_unsignedinteger);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_inexact);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_floating);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_complexfloating);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_flexible);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_character);
  Py_VISIT(traverse_module_state->__pyx_ptype_5numpy_ufunc);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_5utils_4data_Dataset);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_8distance_9_distance_DistanceMeasure);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_9transform_8_feature_FeatureEngineer);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_5utils_4misc_CList);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer);
  Py_VISIT(traverse_module_state->__pyx_type_8wildboar_4tree_6_ctree_TreeFeatureEngineer);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer);
  Py_VISIT(traverse_module_state->__pyx_type_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_Criterion);
  Py_VISIT(traverse_module_state->__pyx_type_8wildboar_4tree_6_ctree_Criterion);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion);
  Py_VISIT(traverse_module_state->__pyx_type_8wildboar_4tree_6_ctree_ClassificationCriterion);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion);
  Py_VISIT(traverse_module_state->__pyx_type_8wildboar_4tree_6_ctree_GiniCriterion);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion);
  Py_VISIT(traverse_module_state->__pyx_type_8wildboar_4tree_6_ctree_EntropyCriterion);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion);
  Py_VISIT(traverse_module_state->__pyx_type_8wildboar_4tree_6_ctree_RegressionCriterion);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion);
  Py_VISIT(traverse_module_state->__pyx_type_8wildboar_4tree_6_ctree_MSECriterion);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_Tree);
  Py_VISIT(traverse_module_state->__pyx_type_8wildboar_4tree_6_ctree_Tree);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder);
  Py_VISIT(traverse_module_state->__pyx_type_8wildboar_4tree_6_ctree_TreeBuilder);
  Py_VISIT(traverse_module_state->__pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder);
  Py_VISIT(traverse_module_state->__pyx_type_8wildboar_4tree_6_ctree_ExtraTreeBuilder);
  Py_VISIT(traverse_module_state->__pyx_n_s_ClassificationCriterion);
  Py_VISIT(traverse_module_state->__pyx_n_s_ClassificationCriterion___reduce);
  Py_VISIT(traverse_module_state->__pyx_n_s_ClassificationCriterion___setsta);
  Py_VISIT(traverse_module_state->__pyx_n_s_Criterion);
  Py_VISIT(traverse_module_state->__pyx_n_s_Criterion___reduce_cython);
  Py_VISIT(traverse_module_state->__pyx_n_s_Criterion___setstate_cython);
  Py_VISIT(traverse_module_state->__pyx_n_s_DISTANCE_MEASURE);
  Py_VISIT(traverse_module_state->__pyx_n_s_DynamicTreeFeatureEngineer);
  Py_VISIT(traverse_module_state->__pyx_n_s_DynamicTreeFeatureEngineer___red);
  Py_VISIT(traverse_module_state->__pyx_n_s_EntropyCriterion);
  Py_VISIT(traverse_module_state->__pyx_n_s_EntropyCriterion___reduce_cython);
  Py_VISIT(traverse_module_state->__pyx_n_s_EntropyCriterion___setstate_cyth);
  Py_VISIT(traverse_module_state->__pyx_n_s_ExtraTreeBuilder);
  Py_VISIT(traverse_module_state->__pyx_n_s_ExtraTreeBuilder___reduce_cython);
  Py_VISIT(traverse_module_state->__pyx_n_s_ExtraTreeBuilder___setstate_cyth);
  Py_VISIT(traverse_module_state->__pyx_n_s_GiniCriterion);
  Py_VISIT(traverse_module_state->__pyx_n_s_GiniCriterion___reduce_cython);
  Py_VISIT(traverse_module_state->__pyx_n_s_GiniCriterion___setstate_cython);
  Py_VISIT(traverse_module_state->__pyx_n_s_ImportError);
  Py_VISIT(traverse_module_state->__pyx_n_s_MSECriterion);
  Py_VISIT(traverse_module_state->__pyx_n_s_MSECriterion___reduce_cython);
  Py_VISIT(traverse_module_state->__pyx_n_s_MSECriterion___setstate_cython);
  Py_VISIT(traverse_module_state->__pyx_n_s_MemoryError);
  Py_VISIT(traverse_module_state->__pyx_n_s_RegressionCriterion);
  Py_VISIT(traverse_module_state->__pyx_n_s_RegressionCriterion___reduce_cyt);
  Py_VISIT(traverse_module_state->__pyx_n_s_RegressionCriterion___setstate_c);
  Py_VISIT(traverse_module_state->__pyx_n_s_Tree);
  Py_VISIT(traverse_module_state->__pyx_n_s_TreeBuilder);
  Py_VISIT(traverse_module_state->__pyx_n_s_TreeBuilder___reduce_cython);
  Py_VISIT(traverse_module_state->__pyx_n_s_TreeBuilder___setstate_cython);
  Py_VISIT(traverse_module_state->__pyx_n_s_TreeBuilder_build_tree);
  Py_VISIT(traverse_module_state->__pyx_n_s_TreeFeatureEngineer);
  Py_VISIT(traverse_module_state->__pyx_n_s_TreeFeatureEngineer___reduce);
  Py_VISIT(traverse_module_state->__pyx_n_s_Tree___reduce);
  Py_VISIT(traverse_module_state->__pyx_n_s_Tree_apply);
  Py_VISIT(traverse_module_state->__pyx_n_s_Tree_decision_path);
  Py_VISIT(traverse_module_state->__pyx_n_s_Tree_predict);
  Py_VISIT(traverse_module_state->__pyx_n_s_TypeError);
  Py_VISIT(traverse_module_state->__pyx_n_s_ValueError);
  Py_VISIT(traverse_module_state->__pyx_n_s_X);
  Py_VISIT(traverse_module_state->__pyx_kp_u_X_should_be_np_ndarray_got);
  Py_VISIT(traverse_module_state->__pyx_kp_u__3);
  Py_VISIT(traverse_module_state->__pyx_n_s__38);
  Py_VISIT(traverse_module_state->__pyx_kp_u__4);
  Py_VISIT(traverse_module_state->__pyx_n_s__6);
  Py_VISIT(traverse_module_state->__pyx_kp_u__7);
  Py_VISIT(traverse_module_state->__pyx_n_s_alpha);
  Py_VISIT(traverse_module_state->__pyx_n_s_apply);
  Py_VISIT(traverse_module_state->__pyx_n_s_asyncio_coroutines);
  Py_VISIT(traverse_module_state->__pyx_n_s_axis);
  Py_VISIT(traverse_module_state->__pyx_n_s_build_tree);
  Py_VISIT(traverse_module_state->__pyx_n_u_c);
  Py_VISIT(traverse_module_state->__pyx_n_s_capacity);
  Py_VISIT(traverse_module_state->__pyx_n_s_check_dataset);
  Py_VISIT(traverse_module_state->__pyx_n_s_class);
  Py_VISIT(traverse_module_state->__pyx_n_s_cline_in_traceback);
  Py_VISIT(traverse_module_state->__pyx_n_u_clip);
  Py_VISIT(traverse_module_state->__pyx_n_s_criterion);
  Py_VISIT(traverse_module_state->__pyx_n_s_csr_matrix);
  Py_VISIT(traverse_module_state->__pyx_n_s_decision_path);
  Py_VISIT(traverse_module_state->__pyx_kp_u_disable);
  Py_VISIT(traverse_module_state->__pyx_n_s_distance);
  Py_VISIT(traverse_module_state->__pyx_n_s_double);
  Py_VISIT(traverse_module_state->__pyx_n_s_dtype);
  Py_VISIT(traverse_module_state->__pyx_n_s_empty);
  Py_VISIT(traverse_module_state->__pyx_kp_u_enable);
  Py_VISIT(traverse_module_state->__pyx_n_s_feature);
  Py_VISIT(traverse_module_state->__pyx_n_s_feature_engineer);
  Py_VISIT(traverse_module_state->__pyx_n_s_feature_value);
  Py_VISIT(traverse_module_state->__pyx_n_s_features);
  Py_VISIT(traverse_module_state->__pyx_kp_u_gc);
  Py_VISIT(traverse_module_state->__pyx_n_s_getstate);
  Py_VISIT(traverse_module_state->__pyx_n_s_i);
  Py_VISIT(traverse_module_state->__pyx_n_s_i_stride);
  Py_VISIT(traverse_module_state->__pyx_n_s_import);
  Py_VISIT(traverse_module_state->__pyx_n_s_impurity);
  Py_VISIT(traverse_module_state->__pyx_n_s_init);
  Py_VISIT(traverse_module_state->__pyx_n_s_initializing);
  Py_VISIT(traverse_module_state->__pyx_n_s_intc);
  Py_VISIT(traverse_module_state->__pyx_n_s_intp);
  Py_VISIT(traverse_module_state->__pyx_n_s_is_coroutine);
  Py_VISIT(traverse_module_state->__pyx_kp_u_isenabled);
  Py_VISIT(traverse_module_state->__pyx_n_s_itemsize);
  Py_VISIT(traverse_module_state->__pyx_n_s_left);
  Py_VISIT(traverse_module_state->__pyx_n_s_main);
  Py_VISIT(traverse_module_state->__pyx_n_s_make_tree);
  Py_VISIT(traverse_module_state->__pyx_n_s_max_depth);
  Py_VISIT(traverse_module_state->__pyx_n_s_min_impurity_decrease);
  Py_VISIT(traverse_module_state->__pyx_n_s_min_sample_leaf);
  Py_VISIT(traverse_module_state->__pyx_n_s_min_sample_split);
  Py_VISIT(traverse_module_state->__pyx_n_s_mode);
  Py_VISIT(traverse_module_state->__pyx_n_s_n_labels);
  Py_VISIT(traverse_module_state->__pyx_n_s_n_node_samples);
  Py_VISIT(traverse_module_state->__pyx_n_s_n_stride);
  Py_VISIT(traverse_module_state->__pyx_n_s_n_weighted_node_samples);
  Py_VISIT(traverse_module_state->__pyx_n_s_name);
  Py_VISIT(traverse_module_state->__pyx_kp_s_no_default___reduce___due_to_non);
  Py_VISIT(traverse_module_state->__pyx_n_s_node_count);
  Py_VISIT(traverse_module_state->__pyx_n_s_node_index);
  Py_VISIT(traverse_module_state->__pyx_n_s_np);
  Py_VISIT(traverse_module_state->__pyx_n_s_numpy);
  Py_VISIT(traverse_module_state->__pyx_kp_u_numpy_core_multiarray_failed_to);
  Py_VISIT(traverse_module_state->__pyx_kp_u_numpy_core_umath_failed_to_impor);
  Py_VISIT(traverse_module_state->__pyx_n_s_order);
  Py_VISIT(traverse_module_state->__pyx_n_s_out);
  Py_VISIT(traverse_module_state->__pyx_n_s_out_data);
  Py_VISIT(traverse_module_state->__pyx_n_s_predict);
  Py_VISIT(traverse_module_state->__pyx_n_s_pyx_state);
  Py_VISIT(traverse_module_state->__pyx_n_s_pyx_vtable);
  Py_VISIT(traverse_module_state->__pyx_n_s_randint);
  Py_VISIT(traverse_module_state->__pyx_n_s_random_state);
  Py_VISIT(traverse_module_state->__pyx_n_s_range);
  Py_VISIT(traverse_module_state->__pyx_n_s_reduce);
  Py_VISIT(traverse_module_state->__pyx_n_s_reduce_cython);
  Py_VISIT(traverse_module_state->__pyx_n_s_reduce_ex);
  Py_VISIT(traverse_module_state->__pyx_n_s_reshape);
  Py_VISIT(traverse_module_state->__pyx_n_s_right);
  Py_VISIT(traverse_module_state->__pyx_n_s_sample_weights);
  Py_VISIT(traverse_module_state->__pyx_n_s_scipy_sparse);
  Py_VISIT(traverse_module_state->__pyx_n_s_self);
  Py_VISIT(traverse_module_state->__pyx_kp_s_self_sample_weight_self_samples);
  Py_VISIT(traverse_module_state->__pyx_n_s_setstate);
  Py_VISIT(traverse_module_state->__pyx_n_s_setstate_cython);
  Py_VISIT(traverse_module_state->__pyx_n_s_spec);
  Py_VISIT(traverse_module_state->__pyx_kp_s_src_wildboar_tree__ctree_pyx);
  Py_VISIT(traverse_module_state->__pyx_kp_s_stringsource);
  Py_VISIT(traverse_module_state->__pyx_n_s_super);
  Py_VISIT(traverse_module_state->__pyx_n_s_take);
  Py_VISIT(traverse_module_state->__pyx_n_s_test);
  Py_VISIT(traverse_module_state->__pyx_n_s_threshold);
  Py_VISIT(traverse_module_state->__pyx_n_s_tree);
  Py_VISIT(traverse_module_state->__pyx_n_s_ts);
  Py_VISIT(traverse_module_state->__pyx_kp_u_unexpected_dim_r_1);
  Py_VISIT(traverse_module_state->__pyx_kp_u_unexpected_dtype);
  Py_VISIT(traverse_module_state->__pyx_kp_u_unexpected_dtype_r_np_double);
  Py_VISIT(traverse_module_state->__pyx_kp_u_unexpected_stride);
  Py_VISIT(traverse_module_state->__pyx_n_s_utils_data);
  Py_VISIT(traverse_module_state->__pyx_n_s_value);
  Py_VISIT(traverse_module_state->__pyx_n_s_wildboar_tree__ctree);
  Py_VISIT(traverse_module_state->__pyx_n_s_y);
  Py_VISIT(traverse_module_state->__pyx_n_s_zeros);
  Py_VISIT(traverse_module_state->__pyx_float_0_0);
  Py_VISIT(traverse_module_state->__pyx_int_0);
  Py_VISIT(traverse_module_state->__pyx_int_1);
  Py_VISIT(traverse_module_state->__pyx_int_neg_1);
  Py_VISIT(traverse_module_state->__pyx_tuple_);
  Py_VISIT(traverse_module_state->__pyx_tuple__2);
  Py_VISIT(traverse_module_state->__pyx_tuple__5);
  Py_VISIT(traverse_module_state->__pyx_tuple__8);
  Py_VISIT(traverse_module_state->__pyx_tuple__12);
  Py_VISIT(traverse_module_state->__pyx_tuple__24);
  Py_VISIT(traverse_module_state->__pyx_tuple__27);
  Py_VISIT(traverse_module_state->__pyx_tuple__29);
  Py_VISIT(traverse_module_state->__pyx_tuple__31);
  Py_VISIT(traverse_module_state->__pyx_codeobj__9);
  Py_VISIT(traverse_module_state->__pyx_codeobj__10);
  Py_VISIT(traverse_module_state->__pyx_codeobj__11);
  Py_VISIT(traverse_module_state->__pyx_codeobj__13);
  Py_VISIT(traverse_module_state->__pyx_codeobj__14);
  Py_VISIT(traverse_module_state->__pyx_codeobj__15);
  Py_VISIT(traverse_module_state->__pyx_codeobj__16);
  Py_VISIT(traverse_module_state->__pyx_codeobj__17);
  Py_VISIT(traverse_module_state->__pyx_codeobj__18);
  Py_VISIT(traverse_module_state->__pyx_codeobj__19);
  Py_VISIT(traverse_module_state->__pyx_codeobj__20);
  Py_VISIT(traverse_module_state->__pyx_codeobj__21);
  Py_VISIT(traverse_module_state->__pyx_codeobj__22);
  Py_VISIT(traverse_module_state->__pyx_codeobj__23);
  Py_VISIT(traverse_module_state->__pyx_codeobj__25);
  Py_VISIT(traverse_module_state->__pyx_codeobj__26);
  Py_VISIT(traverse_module_state->__pyx_codeobj__28);
  Py_VISIT(traverse_module_state->__pyx_codeobj__30);
  Py_VISIT(traverse_module_state->__pyx_codeobj__32);
  Py_VISIT(traverse_module_state->__pyx_codeobj__33);
  Py_VISIT(traverse_module_state->__pyx_codeobj__34);
  Py_VISIT(traverse_module_state->__pyx_codeobj__35);
  Py_VISIT(traverse_module_state->__pyx_codeobj__36);
  Py_VISIT(traverse_module_state->__pyx_codeobj__37);
  return 0;
}
#endif
/* #### Code section: module_state_defines ### */
#define __pyx_d __pyx_mstate_global->__pyx_d
#define __pyx_b __pyx_mstate_global->__pyx_b
#define __pyx_cython_runtime __pyx_mstate_global->__pyx_cython_runtime
#define __pyx_empty_tuple __pyx_mstate_global->__pyx_empty_tuple
#define __pyx_empty_bytes __pyx_mstate_global->__pyx_empty_bytes
#define __pyx_empty_unicode __pyx_mstate_global->__pyx_empty_unicode
#ifdef __Pyx_CyFunction_USED
#define __pyx_CyFunctionType __pyx_mstate_global->__pyx_CyFunctionType
#endif
#ifdef __Pyx_FusedFunction_USED
#define __pyx_FusedFunctionType __pyx_mstate_global->__pyx_FusedFunctionType
#endif
#ifdef __Pyx_Generator_USED
#define __pyx_GeneratorType __pyx_mstate_global->__pyx_GeneratorType
#endif
#ifdef __Pyx_IterableCoroutine_USED
#define __pyx_IterableCoroutineType __pyx_mstate_global->__pyx_IterableCoroutineType
#endif
#ifdef __Pyx_Coroutine_USED
#define __pyx_CoroutineAwaitType __pyx_mstate_global->__pyx_CoroutineAwaitType
#endif
#ifdef __Pyx_Coroutine_USED
#define __pyx_CoroutineType __pyx_mstate_global->__pyx_CoroutineType
#endif
#if CYTHON_USE_MODULE_STATE
#endif
#if CYTHON_USE_MODULE_STATE
#endif
#if CYTHON_USE_MODULE_STATE
#endif
#if CYTHON_USE_MODULE_STATE
#endif
#define __pyx_ptype_7cpython_4type_type __pyx_mstate_global->__pyx_ptype_7cpython_4type_type
#if CYTHON_USE_MODULE_STATE
#endif
#if CYTHON_USE_MODULE_STATE
#endif
#if CYTHON_USE_MODULE_STATE
#endif
#if CYTHON_USE_MODULE_STATE
#endif
#if CYTHON_USE_MODULE_STATE
#endif
#define __pyx_ptype_5numpy_dtype __pyx_mstate_global->__pyx_ptype_5numpy_dtype
#define __pyx_ptype_5numpy_flatiter __pyx_mstate_global->__pyx_ptype_5numpy_flatiter
#define __pyx_ptype_5numpy_broadcast __pyx_mstate_global->__pyx_ptype_5numpy_broadcast
#define __pyx_ptype_5numpy_ndarray __pyx_mstate_global->__pyx_ptype_5numpy_ndarray
#define __pyx_ptype_5numpy_generic __pyx_mstate_global->__pyx_ptype_5numpy_generic
#define __pyx_ptype_5numpy_number __pyx_mstate_global->__pyx_ptype_5numpy_number
#define __pyx_ptype_5numpy_integer __pyx_mstate_global->__pyx_ptype_5numpy_integer
#define __pyx_ptype_5numpy_signedinteger __pyx_mstate_global->__pyx_ptype_5numpy_signedinteger
#define __pyx_ptype_5numpy_unsignedinteger __pyx_mstate_global->__pyx_ptype_5numpy_unsignedinteger
#define __pyx_ptype_5numpy_inexact __pyx_mstate_global->__pyx_ptype_5numpy_inexact
#define __pyx_ptype_5numpy_floating __pyx_mstate_global->__pyx_ptype_5numpy_floating
#define __pyx_ptype_5numpy_complexfloating __pyx_mstate_global->__pyx_ptype_5numpy_complexfloating
#define __pyx_ptype_5numpy_flexible __pyx_mstate_global->__pyx_ptype_5numpy_flexible
#define __pyx_ptype_5numpy_character __pyx_mstate_global->__pyx_ptype_5numpy_character
#define __pyx_ptype_5numpy_ufunc __pyx_mstate_global->__pyx_ptype_5numpy_ufunc
#if CYTHON_USE_MODULE_STATE
#endif
#if CYTHON_USE_MODULE_STATE
#endif
#if CYTHON_USE_MODULE_STATE
#endif
#define __pyx_ptype_8wildboar_5utils_4data_Dataset __pyx_mstate_global->__pyx_ptype_8wildboar_5utils_4data_Dataset
#if CYTHON_USE_MODULE_STATE
#endif
#define __pyx_ptype_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure __pyx_mstate_global->__pyx_ptype_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure
#define __pyx_ptype_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure __pyx_mstate_global->__pyx_ptype_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure
#define __pyx_ptype_8wildboar_8distance_9_distance_DistanceMeasure __pyx_mstate_global->__pyx_ptype_8wildboar_8distance_9_distance_DistanceMeasure
#if CYTHON_USE_MODULE_STATE
#endif
#define __pyx_ptype_8wildboar_9transform_8_feature_FeatureEngineer __pyx_mstate_global->__pyx_ptype_8wildboar_9transform_8_feature_FeatureEngineer
#if CYTHON_USE_MODULE_STATE
#endif
#define __pyx_ptype_8wildboar_5utils_4misc_CList __pyx_mstate_global->__pyx_ptype_8wildboar_5utils_4misc_CList
#if CYTHON_USE_MODULE_STATE
#endif
#if CYTHON_USE_MODULE_STATE
#define __pyx_type_8wildboar_4tree_6_ctree_TreeFeatureEngineer __pyx_mstate_global->__pyx_type_8wildboar_4tree_6_ctree_TreeFeatureEngineer
#define __pyx_type_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer __pyx_mstate_global->__pyx_type_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer
#define __pyx_type_8wildboar_4tree_6_ctree_Criterion __pyx_mstate_global->__pyx_type_8wildboar_4tree_6_ctree_Criterion
#define __pyx_type_8wildboar_4tree_6_ctree_ClassificationCriterion __pyx_mstate_global->__pyx_type_8wildboar_4tree_6_ctree_ClassificationCriterion
#define __pyx_type_8wildboar_4tree_6_ctree_GiniCriterion __pyx_mstate_global->__pyx_type_8wildboar_4tree_6_ctree_GiniCriterion
#define __pyx_type_8wildboar_4tree_6_ctree_EntropyCriterion __pyx_mstate_global->__pyx_type_8wildboar_4tree_6_ctree_EntropyCriterion
#define __pyx_type_8wildboar_4tree_6_ctree_RegressionCriterion __pyx_mstate_global->__pyx_type_8wildboar_4tree_6_ctree_RegressionCriterion
#define __pyx_type_8wildboar_4tree_6_ctree_MSECriterion __pyx_mstate_global->__pyx_type_8wildboar_4tree_6_ctree_MSECriterion
#define __pyx_type_8wildboar_4tree_6_ctree_Tree __pyx_mstate_global->__pyx_type_8wildboar_4tree_6_ctree_Tree
#define __pyx_type_8wildboar_4tree_6_ctree_TreeBuilder __pyx_mstate_global->__pyx_type_8wildboar_4tree_6_ctree_TreeBuilder
#define __pyx_type_8wildboar_4tree_6_ctree_ExtraTreeBuilder __pyx_mstate_global->__pyx_type_8wildboar_4tree_6_ctree_ExtraTreeBuilder
#endif
#define __pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer __pyx_mstate_global->__pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer
#define __pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer __pyx_mstate_global->__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer
#define __pyx_ptype_8wildboar_4tree_6_ctree_Criterion __pyx_mstate_global->__pyx_ptype_8wildboar_4tree_6_ctree_Criterion
#define __pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion __pyx_mstate_global->__pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion
#define __pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion __pyx_mstate_global->__pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion
#define __pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion __pyx_mstate_global->__pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion
#define __pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion __pyx_mstate_global->__pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion
#define __pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion __pyx_mstate_global->__pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion
#define __pyx_ptype_8wildboar_4tree_6_ctree_Tree __pyx_mstate_global->__pyx_ptype_8wildboar_4tree_6_ctree_Tree
#define __pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder __pyx_mstate_global->__pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder
#define __pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder __pyx_mstate_global->__pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder
#define __pyx_n_s_ClassificationCriterion __pyx_mstate_global->__pyx_n_s_ClassificationCriterion
#define __pyx_n_s_ClassificationCriterion___reduce __pyx_mstate_global->__pyx_n_s_ClassificationCriterion___reduce
#define __pyx_n_s_ClassificationCriterion___setsta __pyx_mstate_global->__pyx_n_s_ClassificationCriterion___setsta
#define __pyx_n_s_Criterion __pyx_mstate_global->__pyx_n_s_Criterion
#define __pyx_n_s_Criterion___reduce_cython __pyx_mstate_global->__pyx_n_s_Criterion___reduce_cython
#define __pyx_n_s_Criterion___setstate_cython __pyx_mstate_global->__pyx_n_s_Criterion___setstate_cython
#define __pyx_n_s_DISTANCE_MEASURE __pyx_mstate_global->__pyx_n_s_DISTANCE_MEASURE
#define __pyx_n_s_DynamicTreeFeatureEngineer __pyx_mstate_global->__pyx_n_s_DynamicTreeFeatureEngineer
#define __pyx_n_s_DynamicTreeFeatureEngineer___red __pyx_mstate_global->__pyx_n_s_DynamicTreeFeatureEngineer___red
#define __pyx_n_s_EntropyCriterion __pyx_mstate_global->__pyx_n_s_EntropyCriterion
#define __pyx_n_s_EntropyCriterion___reduce_cython __pyx_mstate_global->__pyx_n_s_EntropyCriterion___reduce_cython
#define __pyx_n_s_EntropyCriterion___setstate_cyth __pyx_mstate_global->__pyx_n_s_EntropyCriterion___setstate_cyth
#define __pyx_n_s_ExtraTreeBuilder __pyx_mstate_global->__pyx_n_s_ExtraTreeBuilder
#define __pyx_n_s_ExtraTreeBuilder___reduce_cython __pyx_mstate_global->__pyx_n_s_ExtraTreeBuilder___reduce_cython
#define __pyx_n_s_ExtraTreeBuilder___setstate_cyth __pyx_mstate_global->__pyx_n_s_ExtraTreeBuilder___setstate_cyth
#define __pyx_n_s_GiniCriterion __pyx_mstate_global->__pyx_n_s_GiniCriterion
#define __pyx_n_s_GiniCriterion___reduce_cython __pyx_mstate_global->__pyx_n_s_GiniCriterion___reduce_cython
#define __pyx_n_s_GiniCriterion___setstate_cython __pyx_mstate_global->__pyx_n_s_GiniCriterion___setstate_cython
#define __pyx_n_s_ImportError __pyx_mstate_global->__pyx_n_s_ImportError
#define __pyx_n_s_MSECriterion __pyx_mstate_global->__pyx_n_s_MSECriterion
#define __pyx_n_s_MSECriterion___reduce_cython __pyx_mstate_global->__pyx_n_s_MSECriterion___reduce_cython
#define __pyx_n_s_MSECriterion___setstate_cython __pyx_mstate_global->__pyx_n_s_MSECriterion___setstate_cython
#define __pyx_n_s_MemoryError __pyx_mstate_global->__pyx_n_s_MemoryError
#define __pyx_n_s_RegressionCriterion __pyx_mstate_global->__pyx_n_s_RegressionCriterion
#define __pyx_n_s_RegressionCriterion___reduce_cyt __pyx_mstate_global->__pyx_n_s_RegressionCriterion___reduce_cyt
#define __pyx_n_s_RegressionCriterion___setstate_c __pyx_mstate_global->__pyx_n_s_RegressionCriterion___setstate_c
#define __pyx_n_s_Tree __pyx_mstate_global->__pyx_n_s_Tree
#define __pyx_n_s_TreeBuilder __pyx_mstate_global->__pyx_n_s_TreeBuilder
#define __pyx_n_s_TreeBuilder___reduce_cython __pyx_mstate_global->__pyx_n_s_TreeBuilder___reduce_cython
#define __pyx_n_s_TreeBuilder___setstate_cython __pyx_mstate_global->__pyx_n_s_TreeBuilder___setstate_cython
#define __pyx_n_s_TreeBuilder_build_tree __pyx_mstate_global->__pyx_n_s_TreeBuilder_build_tree
#define __pyx_n_s_TreeFeatureEngineer __pyx_mstate_global->__pyx_n_s_TreeFeatureEngineer
#define __pyx_n_s_TreeFeatureEngineer___reduce __pyx_mstate_global->__pyx_n_s_TreeFeatureEngineer___reduce
#define __pyx_n_s_Tree___reduce __pyx_mstate_global->__pyx_n_s_Tree___reduce
#define __pyx_n_s_Tree_apply __pyx_mstate_global->__pyx_n_s_Tree_apply
#define __pyx_n_s_Tree_decision_path __pyx_mstate_global->__pyx_n_s_Tree_decision_path
#define __pyx_n_s_Tree_predict __pyx_mstate_global->__pyx_n_s_Tree_predict
#define __pyx_n_s_TypeError __pyx_mstate_global->__pyx_n_s_TypeError
#define __pyx_n_s_ValueError __pyx_mstate_global->__pyx_n_s_ValueError
#define __pyx_n_s_X __pyx_mstate_global->__pyx_n_s_X
#define __pyx_kp_u_X_should_be_np_ndarray_got __pyx_mstate_global->__pyx_kp_u_X_should_be_np_ndarray_got
#define __pyx_kp_u__3 __pyx_mstate_global->__pyx_kp_u__3
#define __pyx_n_s__38 __pyx_mstate_global->__pyx_n_s__38
#define __pyx_kp_u__4 __pyx_mstate_global->__pyx_kp_u__4
#define __pyx_n_s__6 __pyx_mstate_global->__pyx_n_s__6
#define __pyx_kp_u__7 __pyx_mstate_global->__pyx_kp_u__7
#define __pyx_n_s_alpha __pyx_mstate_global->__pyx_n_s_alpha
#define __pyx_n_s_apply __pyx_mstate_global->__pyx_n_s_apply
#define __pyx_n_s_asyncio_coroutines __pyx_mstate_global->__pyx_n_s_asyncio_coroutines
#define __pyx_n_s_axis __pyx_mstate_global->__pyx_n_s_axis
#define __pyx_n_s_build_tree __pyx_mstate_global->__pyx_n_s_build_tree
#define __pyx_n_u_c __pyx_mstate_global->__pyx_n_u_c
#define __pyx_n_s_capacity __pyx_mstate_global->__pyx_n_s_capacity
#define __pyx_n_s_check_dataset __pyx_mstate_global->__pyx_n_s_check_dataset
#define __pyx_n_s_class __pyx_mstate_global->__pyx_n_s_class
#define __pyx_n_s_cline_in_traceback __pyx_mstate_global->__pyx_n_s_cline_in_traceback
#define __pyx_n_u_clip __pyx_mstate_global->__pyx_n_u_clip
#define __pyx_n_s_criterion __pyx_mstate_global->__pyx_n_s_criterion
#define __pyx_n_s_csr_matrix __pyx_mstate_global->__pyx_n_s_csr_matrix
#define __pyx_n_s_decision_path __pyx_mstate_global->__pyx_n_s_decision_path
#define __pyx_kp_u_disable __pyx_mstate_global->__pyx_kp_u_disable
#define __pyx_n_s_distance __pyx_mstate_global->__pyx_n_s_distance
#define __pyx_n_s_double __pyx_mstate_global->__pyx_n_s_double
#define __pyx_n_s_dtype __pyx_mstate_global->__pyx_n_s_dtype
#define __pyx_n_s_empty __pyx_mstate_global->__pyx_n_s_empty
#define __pyx_kp_u_enable __pyx_mstate_global->__pyx_kp_u_enable
#define __pyx_n_s_feature __pyx_mstate_global->__pyx_n_s_feature
#define __pyx_n_s_feature_engineer __pyx_mstate_global->__pyx_n_s_feature_engineer
#define __pyx_n_s_feature_value __pyx_mstate_global->__pyx_n_s_feature_value
#define __pyx_n_s_features __pyx_mstate_global->__pyx_n_s_features
#define __pyx_kp_u_gc __pyx_mstate_global->__pyx_kp_u_gc
#define __pyx_n_s_getstate __pyx_mstate_global->__pyx_n_s_getstate
#define __pyx_n_s_i __pyx_mstate_global->__pyx_n_s_i
#define __pyx_n_s_i_stride __pyx_mstate_global->__pyx_n_s_i_stride
#define __pyx_n_s_import __pyx_mstate_global->__pyx_n_s_import
#define __pyx_n_s_impurity __pyx_mstate_global->__pyx_n_s_impurity
#define __pyx_n_s_init __pyx_mstate_global->__pyx_n_s_init
#define __pyx_n_s_initializing __pyx_mstate_global->__pyx_n_s_initializing
#define __pyx_n_s_intc __pyx_mstate_global->__pyx_n_s_intc
#define __pyx_n_s_intp __pyx_mstate_global->__pyx_n_s_intp
#define __pyx_n_s_is_coroutine __pyx_mstate_global->__pyx_n_s_is_coroutine
#define __pyx_kp_u_isenabled __pyx_mstate_global->__pyx_kp_u_isenabled
#define __pyx_n_s_itemsize __pyx_mstate_global->__pyx_n_s_itemsize
#define __pyx_n_s_left __pyx_mstate_global->__pyx_n_s_left
#define __pyx_n_s_main __pyx_mstate_global->__pyx_n_s_main
#define __pyx_n_s_make_tree __pyx_mstate_global->__pyx_n_s_make_tree
#define __pyx_n_s_max_depth __pyx_mstate_global->__pyx_n_s_max_depth
#define __pyx_n_s_min_impurity_decrease __pyx_mstate_global->__pyx_n_s_min_impurity_decrease
#define __pyx_n_s_min_sample_leaf __pyx_mstate_global->__pyx_n_s_min_sample_leaf
#define __pyx_n_s_min_sample_split __pyx_mstate_global->__pyx_n_s_min_sample_split
#define __pyx_n_s_mode __pyx_mstate_global->__pyx_n_s_mode
#define __pyx_n_s_n_labels __pyx_mstate_global->__pyx_n_s_n_labels
#define __pyx_n_s_n_node_samples __pyx_mstate_global->__pyx_n_s_n_node_samples
#define __pyx_n_s_n_stride __pyx_mstate_global->__pyx_n_s_n_stride
#define __pyx_n_s_n_weighted_node_samples __pyx_mstate_global->__pyx_n_s_n_weighted_node_samples
#define __pyx_n_s_name __pyx_mstate_global->__pyx_n_s_name
#define __pyx_kp_s_no_default___reduce___due_to_non __pyx_mstate_global->__pyx_kp_s_no_default___reduce___due_to_non
#define __pyx_n_s_node_count __pyx_mstate_global->__pyx_n_s_node_count
#define __pyx_n_s_node_index __pyx_mstate_global->__pyx_n_s_node_index
#define __pyx_n_s_np __pyx_mstate_global->__pyx_n_s_np
#define __pyx_n_s_numpy __pyx_mstate_global->__pyx_n_s_numpy
#define __pyx_kp_u_numpy_core_multiarray_failed_to __pyx_mstate_global->__pyx_kp_u_numpy_core_multiarray_failed_to
#define __pyx_kp_u_numpy_core_umath_failed_to_impor __pyx_mstate_global->__pyx_kp_u_numpy_core_umath_failed_to_impor
#define __pyx_n_s_order __pyx_mstate_global->__pyx_n_s_order
#define __pyx_n_s_out __pyx_mstate_global->__pyx_n_s_out
#define __pyx_n_s_out_data __pyx_mstate_global->__pyx_n_s_out_data
#define __pyx_n_s_predict __pyx_mstate_global->__pyx_n_s_predict
#define __pyx_n_s_pyx_state __pyx_mstate_global->__pyx_n_s_pyx_state
#define __pyx_n_s_pyx_vtable __pyx_mstate_global->__pyx_n_s_pyx_vtable
#define __pyx_n_s_randint __pyx_mstate_global->__pyx_n_s_randint
#define __pyx_n_s_random_state __pyx_mstate_global->__pyx_n_s_random_state
#define __pyx_n_s_range __pyx_mstate_global->__pyx_n_s_range
#define __pyx_n_s_reduce __pyx_mstate_global->__pyx_n_s_reduce
#define __pyx_n_s_reduce_cython __pyx_mstate_global->__pyx_n_s_reduce_cython
#define __pyx_n_s_reduce_ex __pyx_mstate_global->__pyx_n_s_reduce_ex
#define __pyx_n_s_reshape __pyx_mstate_global->__pyx_n_s_reshape
#define __pyx_n_s_right __pyx_mstate_global->__pyx_n_s_right
#define __pyx_n_s_sample_weights __pyx_mstate_global->__pyx_n_s_sample_weights
#define __pyx_n_s_scipy_sparse __pyx_mstate_global->__pyx_n_s_scipy_sparse
#define __pyx_n_s_self __pyx_mstate_global->__pyx_n_s_self
#define __pyx_kp_s_self_sample_weight_self_samples __pyx_mstate_global->__pyx_kp_s_self_sample_weight_self_samples
#define __pyx_n_s_setstate __pyx_mstate_global->__pyx_n_s_setstate
#define __pyx_n_s_setstate_cython __pyx_mstate_global->__pyx_n_s_setstate_cython
#define __pyx_n_s_spec __pyx_mstate_global->__pyx_n_s_spec
#define __pyx_kp_s_src_wildboar_tree__ctree_pyx __pyx_mstate_global->__pyx_kp_s_src_wildboar_tree__ctree_pyx
#define __pyx_kp_s_stringsource __pyx_mstate_global->__pyx_kp_s_stringsource
#define __pyx_n_s_super __pyx_mstate_global->__pyx_n_s_super
#define __pyx_n_s_take __pyx_mstate_global->__pyx_n_s_take
#define __pyx_n_s_test __pyx_mstate_global->__pyx_n_s_test
#define __pyx_n_s_threshold __pyx_mstate_global->__pyx_n_s_threshold
#define __pyx_n_s_tree __pyx_mstate_global->__pyx_n_s_tree
#define __pyx_n_s_ts __pyx_mstate_global->__pyx_n_s_ts
#define __pyx_kp_u_unexpected_dim_r_1 __pyx_mstate_global->__pyx_kp_u_unexpected_dim_r_1
#define __pyx_kp_u_unexpected_dtype __pyx_mstate_global->__pyx_kp_u_unexpected_dtype
#define __pyx_kp_u_unexpected_dtype_r_np_double __pyx_mstate_global->__pyx_kp_u_unexpected_dtype_r_np_double
#define __pyx_kp_u_unexpected_stride __pyx_mstate_global->__pyx_kp_u_unexpected_stride
#define __pyx_n_s_utils_data __pyx_mstate_global->__pyx_n_s_utils_data
#define __pyx_n_s_value __pyx_mstate_global->__pyx_n_s_value
#define __pyx_n_s_wildboar_tree__ctree __pyx_mstate_global->__pyx_n_s_wildboar_tree__ctree
#define __pyx_n_s_y __pyx_mstate_global->__pyx_n_s_y
#define __pyx_n_s_zeros __pyx_mstate_global->__pyx_n_s_zeros
#define __pyx_float_0_0 __pyx_mstate_global->__pyx_float_0_0
#define __pyx_int_0 __pyx_mstate_global->__pyx_int_0
#define __pyx_int_1 __pyx_mstate_global->__pyx_int_1
#define __pyx_int_neg_1 __pyx_mstate_global->__pyx_int_neg_1
#define __pyx_tuple_ __pyx_mstate_global->__pyx_tuple_
#define __pyx_tuple__2 __pyx_mstate_global->__pyx_tuple__2
#define __pyx_tuple__5 __pyx_mstate_global->__pyx_tuple__5
#define __pyx_tuple__8 __pyx_mstate_global->__pyx_tuple__8
#define __pyx_tuple__12 __pyx_mstate_global->__pyx_tuple__12
#define __pyx_tuple__24 __pyx_mstate_global->__pyx_tuple__24
#define __pyx_tuple__27 __pyx_mstate_global->__pyx_tuple__27
#define __pyx_tuple__29 __pyx_mstate_global->__pyx_tuple__29
#define __pyx_tuple__31 __pyx_mstate_global->__pyx_tuple__31
#define __pyx_codeobj__9 __pyx_mstate_global->__pyx_codeobj__9
#define __pyx_codeobj__10 __pyx_mstate_global->__pyx_codeobj__10
#define __pyx_codeobj__11 __pyx_mstate_global->__pyx_codeobj__11
#define __pyx_codeobj__13 __pyx_mstate_global->__pyx_codeobj__13
#define __pyx_codeobj__14 __pyx_mstate_global->__pyx_codeobj__14
#define __pyx_codeobj__15 __pyx_mstate_global->__pyx_codeobj__15
#define __pyx_codeobj__16 __pyx_mstate_global->__pyx_codeobj__16
#define __pyx_codeobj__17 __pyx_mstate_global->__pyx_codeobj__17
#define __pyx_codeobj__18 __pyx_mstate_global->__pyx_codeobj__18
#define __pyx_codeobj__19 __pyx_mstate_global->__pyx_codeobj__19
#define __pyx_codeobj__20 __pyx_mstate_global->__pyx_codeobj__20
#define __pyx_codeobj__21 __pyx_mstate_global->__pyx_codeobj__21
#define __pyx_codeobj__22 __pyx_mstate_global->__pyx_codeobj__22
#define __pyx_codeobj__23 __pyx_mstate_global->__pyx_codeobj__23
#define __pyx_codeobj__25 __pyx_mstate_global->__pyx_codeobj__25
#define __pyx_codeobj__26 __pyx_mstate_global->__pyx_codeobj__26
#define __pyx_codeobj__28 __pyx_mstate_global->__pyx_codeobj__28
#define __pyx_codeobj__30 __pyx_mstate_global->__pyx_codeobj__30
#define __pyx_codeobj__32 __pyx_mstate_global->__pyx_codeobj__32
#define __pyx_codeobj__33 __pyx_mstate_global->__pyx_codeobj__33
#define __pyx_codeobj__34 __pyx_mstate_global->__pyx_codeobj__34
#define __pyx_codeobj__35 __pyx_mstate_global->__pyx_codeobj__35
#define __pyx_codeobj__36 __pyx_mstate_global->__pyx_codeobj__36
#define __pyx_codeobj__37 __pyx_mstate_global->__pyx_codeobj__37
/* #### Code section: module_code ### */

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":245
 * 
 *         @property
 *         cdef inline PyObject* base(self) nogil:             # <<<<<<<<<<<<<<
 *             """Returns a borrowed reference to the object owning the data/memory.
 *             """
 */

static CYTHON_INLINE PyObject *__pyx_f_5numpy_7ndarray_4base_base(PyArrayObject *__pyx_v_self) {
  PyObject *__pyx_r;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":248
 *             """Returns a borrowed reference to the object owning the data/memory.
 *             """
 *             return PyArray_BASE(self)             # <<<<<<<<<<<<<<
 * 
 *         @property
 */
  __pyx_r = PyArray_BASE(__pyx_v_self);
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":245
 * 
 *         @property
 *         cdef inline PyObject* base(self) nogil:             # <<<<<<<<<<<<<<
 *             """Returns a borrowed reference to the object owning the data/memory.
 *             """
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":251
 * 
 *         @property
 *         cdef inline dtype descr(self):             # <<<<<<<<<<<<<<
 *             """Returns an owned reference to the dtype of the array.
 *             """
 */

static CYTHON_INLINE PyArray_Descr *__pyx_f_5numpy_7ndarray_5descr_descr(PyArrayObject *__pyx_v_self) {
  PyArray_Descr *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyArray_Descr *__pyx_t_1;
  __Pyx_RefNannySetupContext("descr", 1);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":254
 *             """Returns an owned reference to the dtype of the array.
 *             """
 *             return <dtype>PyArray_DESCR(self)             # <<<<<<<<<<<<<<
 * 
 *         @property
 */
  __Pyx_XDECREF((PyObject *)__pyx_r);
  __pyx_t_1 = PyArray_DESCR(__pyx_v_self);
  __Pyx_INCREF((PyObject *)((PyArray_Descr *)__pyx_t_1));
  __pyx_r = ((PyArray_Descr *)__pyx_t_1);
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":251
 * 
 *         @property
 *         cdef inline dtype descr(self):             # <<<<<<<<<<<<<<
 *             """Returns an owned reference to the dtype of the array.
 *             """
 */

  /* function exit code */
  __pyx_L0:;
  __Pyx_XGIVEREF((PyObject *)__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":257
 * 
 *         @property
 *         cdef inline int ndim(self) nogil:             # <<<<<<<<<<<<<<
 *             """Returns the number of dimensions in the array.
 *             """
 */

static CYTHON_INLINE int __pyx_f_5numpy_7ndarray_4ndim_ndim(PyArrayObject *__pyx_v_self) {
  int __pyx_r;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":260
 *             """Returns the number of dimensions in the array.
 *             """
 *             return PyArray_NDIM(self)             # <<<<<<<<<<<<<<
 * 
 *         @property
 */
  __pyx_r = PyArray_NDIM(__pyx_v_self);
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":257
 * 
 *         @property
 *         cdef inline int ndim(self) nogil:             # <<<<<<<<<<<<<<
 *             """Returns the number of dimensions in the array.
 *             """
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":263
 * 
 *         @property
 *         cdef inline npy_intp *shape(self) nogil:             # <<<<<<<<<<<<<<
 *             """Returns a pointer to the dimensions/shape of the array.
 *             The number of elements matches the number of dimensions of the array (ndim).
 */

static CYTHON_INLINE npy_intp *__pyx_f_5numpy_7ndarray_5shape_shape(PyArrayObject *__pyx_v_self) {
  npy_intp *__pyx_r;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":268
 *             Can return NULL for 0-dimensional arrays.
 *             """
 *             return PyArray_DIMS(self)             # <<<<<<<<<<<<<<
 * 
 *         @property
 */
  __pyx_r = PyArray_DIMS(__pyx_v_self);
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":263
 * 
 *         @property
 *         cdef inline npy_intp *shape(self) nogil:             # <<<<<<<<<<<<<<
 *             """Returns a pointer to the dimensions/shape of the array.
 *             The number of elements matches the number of dimensions of the array (ndim).
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":271
 * 
 *         @property
 *         cdef inline npy_intp *strides(self) nogil:             # <<<<<<<<<<<<<<
 *             """Returns a pointer to the strides of the array.
 *             The number of elements matches the number of dimensions of the array (ndim).
 */

static CYTHON_INLINE npy_intp *__pyx_f_5numpy_7ndarray_7strides_strides(PyArrayObject *__pyx_v_self) {
  npy_intp *__pyx_r;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":275
 *             The number of elements matches the number of dimensions of the array (ndim).
 *             """
 *             return PyArray_STRIDES(self)             # <<<<<<<<<<<<<<
 * 
 *         @property
 */
  __pyx_r = PyArray_STRIDES(__pyx_v_self);
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":271
 * 
 *         @property
 *         cdef inline npy_intp *strides(self) nogil:             # <<<<<<<<<<<<<<
 *             """Returns a pointer to the strides of the array.
 *             The number of elements matches the number of dimensions of the array (ndim).
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":278
 * 
 *         @property
 *         cdef inline npy_intp size(self) nogil:             # <<<<<<<<<<<<<<
 *             """Returns the total size (in number of elements) of the array.
 *             """
 */

static CYTHON_INLINE npy_intp __pyx_f_5numpy_7ndarray_4size_size(PyArrayObject *__pyx_v_self) {
  npy_intp __pyx_r;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":281
 *             """Returns the total size (in number of elements) of the array.
 *             """
 *             return PyArray_SIZE(self)             # <<<<<<<<<<<<<<
 * 
 *         @property
 */
  __pyx_r = PyArray_SIZE(__pyx_v_self);
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":278
 * 
 *         @property
 *         cdef inline npy_intp size(self) nogil:             # <<<<<<<<<<<<<<
 *             """Returns the total size (in number of elements) of the array.
 *             """
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":284
 * 
 *         @property
 *         cdef inline char* data(self) nogil:             # <<<<<<<<<<<<<<
 *             """The pointer to the data buffer as a char*.
 *             This is provided for legacy reasons to avoid direct struct field access.
 */

static CYTHON_INLINE char *__pyx_f_5numpy_7ndarray_4data_data(PyArrayObject *__pyx_v_self) {
  char *__pyx_r;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":290
 *             of `PyArray_DATA()` instead, which returns a 'void*'.
 *             """
 *             return PyArray_BYTES(self)             # <<<<<<<<<<<<<<
 * 
 *     ctypedef unsigned char      npy_bool
 */
  __pyx_r = PyArray_BYTES(__pyx_v_self);
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":284
 * 
 *         @property
 *         cdef inline char* data(self) nogil:             # <<<<<<<<<<<<<<
 *             """The pointer to the data buffer as a char*.
 *             This is provided for legacy reasons to avoid direct struct field access.
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":773
 * ctypedef npy_cdouble     complex_t
 * 
 * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
 *     return PyArray_MultiIterNew(1, <void*>a)
 * 
 */

static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew1(PyObject *__pyx_v_a) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("PyArray_MultiIterNew1", 1);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":774
 * 
 * cdef inline object PyArray_MultiIterNew1(a):
 *     return PyArray_MultiIterNew(1, <void*>a)             # <<<<<<<<<<<<<<
 * 
 * cdef inline object PyArray_MultiIterNew2(a, b):
 */
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = PyArray_MultiIterNew(1, ((void *)__pyx_v_a)); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 774, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_r = __pyx_t_1;
  __pyx_t_1 = 0;
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":773
 * ctypedef npy_cdouble     complex_t
 * 
 * cdef inline object PyArray_MultiIterNew1(a):             # <<<<<<<<<<<<<<
 *     return PyArray_MultiIterNew(1, <void*>a)
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_AddTraceback("numpy.PyArray_MultiIterNew1", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":776
 *     return PyArray_MultiIterNew(1, <void*>a)
 * 
 * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
 *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
 * 
 */

static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew2(PyObject *__pyx_v_a, PyObject *__pyx_v_b) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("PyArray_MultiIterNew2", 1);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":777
 * 
 * cdef inline object PyArray_MultiIterNew2(a, b):
 *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)             # <<<<<<<<<<<<<<
 * 
 * cdef inline object PyArray_MultiIterNew3(a, b, c):
 */
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = PyArray_MultiIterNew(2, ((void *)__pyx_v_a), ((void *)__pyx_v_b)); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 777, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_r = __pyx_t_1;
  __pyx_t_1 = 0;
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":776
 *     return PyArray_MultiIterNew(1, <void*>a)
 * 
 * cdef inline object PyArray_MultiIterNew2(a, b):             # <<<<<<<<<<<<<<
 *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_AddTraceback("numpy.PyArray_MultiIterNew2", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":779
 *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
 * 
 * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
 *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
 * 
 */

static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew3(PyObject *__pyx_v_a, PyObject *__pyx_v_b, PyObject *__pyx_v_c) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("PyArray_MultiIterNew3", 1);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":780
 * 
 * cdef inline object PyArray_MultiIterNew3(a, b, c):
 *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)             # <<<<<<<<<<<<<<
 * 
 * cdef inline object PyArray_MultiIterNew4(a, b, c, d):
 */
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = PyArray_MultiIterNew(3, ((void *)__pyx_v_a), ((void *)__pyx_v_b), ((void *)__pyx_v_c)); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 780, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_r = __pyx_t_1;
  __pyx_t_1 = 0;
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":779
 *     return PyArray_MultiIterNew(2, <void*>a, <void*>b)
 * 
 * cdef inline object PyArray_MultiIterNew3(a, b, c):             # <<<<<<<<<<<<<<
 *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_AddTraceback("numpy.PyArray_MultiIterNew3", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":782
 *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
 * 
 * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
 *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
 * 
 */

static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew4(PyObject *__pyx_v_a, PyObject *__pyx_v_b, PyObject *__pyx_v_c, PyObject *__pyx_v_d) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("PyArray_MultiIterNew4", 1);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":783
 * 
 * cdef inline object PyArray_MultiIterNew4(a, b, c, d):
 *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)             # <<<<<<<<<<<<<<
 * 
 * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):
 */
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = PyArray_MultiIterNew(4, ((void *)__pyx_v_a), ((void *)__pyx_v_b), ((void *)__pyx_v_c), ((void *)__pyx_v_d)); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 783, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_r = __pyx_t_1;
  __pyx_t_1 = 0;
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":782
 *     return PyArray_MultiIterNew(3, <void*>a, <void*>b, <void*> c)
 * 
 * cdef inline object PyArray_MultiIterNew4(a, b, c, d):             # <<<<<<<<<<<<<<
 *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_AddTraceback("numpy.PyArray_MultiIterNew4", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":785
 *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
 * 
 * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
 *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
 * 
 */

static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyArray_MultiIterNew5(PyObject *__pyx_v_a, PyObject *__pyx_v_b, PyObject *__pyx_v_c, PyObject *__pyx_v_d, PyObject *__pyx_v_e) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("PyArray_MultiIterNew5", 1);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":786
 * 
 * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):
 *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)             # <<<<<<<<<<<<<<
 * 
 * cdef inline tuple PyDataType_SHAPE(dtype d):
 */
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = PyArray_MultiIterNew(5, ((void *)__pyx_v_a), ((void *)__pyx_v_b), ((void *)__pyx_v_c), ((void *)__pyx_v_d), ((void *)__pyx_v_e)); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 786, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_r = __pyx_t_1;
  __pyx_t_1 = 0;
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":785
 *     return PyArray_MultiIterNew(4, <void*>a, <void*>b, <void*>c, <void*> d)
 * 
 * cdef inline object PyArray_MultiIterNew5(a, b, c, d, e):             # <<<<<<<<<<<<<<
 *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_AddTraceback("numpy.PyArray_MultiIterNew5", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":788
 *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
 * 
 * cdef inline tuple PyDataType_SHAPE(dtype d):             # <<<<<<<<<<<<<<
 *     if PyDataType_HASSUBARRAY(d):
 *         return <tuple>d.subarray.shape
 */

static CYTHON_INLINE PyObject *__pyx_f_5numpy_PyDataType_SHAPE(PyArray_Descr *__pyx_v_d) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_t_1;
  __Pyx_RefNannySetupContext("PyDataType_SHAPE", 1);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":789
 * 
 * cdef inline tuple PyDataType_SHAPE(dtype d):
 *     if PyDataType_HASSUBARRAY(d):             # <<<<<<<<<<<<<<
 *         return <tuple>d.subarray.shape
 *     else:
 */
  __pyx_t_1 = PyDataType_HASSUBARRAY(__pyx_v_d);
  if (__pyx_t_1) {

    /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":790
 * cdef inline tuple PyDataType_SHAPE(dtype d):
 *     if PyDataType_HASSUBARRAY(d):
 *         return <tuple>d.subarray.shape             # <<<<<<<<<<<<<<
 *     else:
 *         return ()
 */
    __Pyx_XDECREF(__pyx_r);
    __Pyx_INCREF(((PyObject*)__pyx_v_d->subarray->shape));
    __pyx_r = ((PyObject*)__pyx_v_d->subarray->shape);
    goto __pyx_L0;

    /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":789
 * 
 * cdef inline tuple PyDataType_SHAPE(dtype d):
 *     if PyDataType_HASSUBARRAY(d):             # <<<<<<<<<<<<<<
 *         return <tuple>d.subarray.shape
 *     else:
 */
  }

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":792
 *         return <tuple>d.subarray.shape
 *     else:
 *         return ()             # <<<<<<<<<<<<<<
 * 
 * 
 */
  /*else*/ {
    __Pyx_XDECREF(__pyx_r);
    __Pyx_INCREF(__pyx_empty_tuple);
    __pyx_r = __pyx_empty_tuple;
    goto __pyx_L0;
  }

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":788
 *     return PyArray_MultiIterNew(5, <void*>a, <void*>b, <void*>c, <void*> d, <void*> e)
 * 
 * cdef inline tuple PyDataType_SHAPE(dtype d):             # <<<<<<<<<<<<<<
 *     if PyDataType_HASSUBARRAY(d):
 *         return <tuple>d.subarray.shape
 */

  /* function exit code */
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":967
 *     int _import_umath() except -1
 * 
 * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
 *     Py_INCREF(base) # important to do this before stealing the reference below!
 *     PyArray_SetBaseObject(arr, base)
 */

static CYTHON_INLINE void __pyx_f_5numpy_set_array_base(PyArrayObject *__pyx_v_arr, PyObject *__pyx_v_base) {
  int __pyx_t_1;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":968
 * 
 * cdef inline void set_array_base(ndarray arr, object base):
 *     Py_INCREF(base) # important to do this before stealing the reference below!             # <<<<<<<<<<<<<<
 *     PyArray_SetBaseObject(arr, base)
 * 
 */
  Py_INCREF(__pyx_v_base);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":969
 * cdef inline void set_array_base(ndarray arr, object base):
 *     Py_INCREF(base) # important to do this before stealing the reference below!
 *     PyArray_SetBaseObject(arr, base)             # <<<<<<<<<<<<<<
 * 
 * cdef inline object get_array_base(ndarray arr):
 */
  __pyx_t_1 = PyArray_SetBaseObject(__pyx_v_arr, __pyx_v_base); if (unlikely(__pyx_t_1 == ((int)-1))) __PYX_ERR(2, 969, __pyx_L1_error)

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":967
 *     int _import_umath() except -1
 * 
 * cdef inline void set_array_base(ndarray arr, object base):             # <<<<<<<<<<<<<<
 *     Py_INCREF(base) # important to do this before stealing the reference below!
 *     PyArray_SetBaseObject(arr, base)
 */

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_AddTraceback("numpy.set_array_base", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_L0:;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":971
 *     PyArray_SetBaseObject(arr, base)
 * 
 * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
 *     base = PyArray_BASE(arr)
 *     if base is NULL:
 */

static CYTHON_INLINE PyObject *__pyx_f_5numpy_get_array_base(PyArrayObject *__pyx_v_arr) {
  PyObject *__pyx_v_base;
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_t_1;
  __Pyx_RefNannySetupContext("get_array_base", 1);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":972
 * 
 * cdef inline object get_array_base(ndarray arr):
 *     base = PyArray_BASE(arr)             # <<<<<<<<<<<<<<
 *     if base is NULL:
 *         return None
 */
  __pyx_v_base = PyArray_BASE(__pyx_v_arr);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":973
 * cdef inline object get_array_base(ndarray arr):
 *     base = PyArray_BASE(arr)
 *     if base is NULL:             # <<<<<<<<<<<<<<
 *         return None
 *     return <object>base
 */
  __pyx_t_1 = (__pyx_v_base == NULL);
  if (__pyx_t_1) {

    /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":974
 *     base = PyArray_BASE(arr)
 *     if base is NULL:
 *         return None             # <<<<<<<<<<<<<<
 *     return <object>base
 * 
 */
    __Pyx_XDECREF(__pyx_r);
    __pyx_r = Py_None; __Pyx_INCREF(Py_None);
    goto __pyx_L0;

    /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":973
 * cdef inline object get_array_base(ndarray arr):
 *     base = PyArray_BASE(arr)
 *     if base is NULL:             # <<<<<<<<<<<<<<
 *         return None
 *     return <object>base
 */
  }

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":975
 *     if base is NULL:
 *         return None
 *     return <object>base             # <<<<<<<<<<<<<<
 * 
 * # Versions of the import_* functions which are more suitable for
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_INCREF(((PyObject *)__pyx_v_base));
  __pyx_r = ((PyObject *)__pyx_v_base);
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":971
 *     PyArray_SetBaseObject(arr, base)
 * 
 * cdef inline object get_array_base(ndarray arr):             # <<<<<<<<<<<<<<
 *     base = PyArray_BASE(arr)
 *     if base is NULL:
 */

  /* function exit code */
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":979
 * # Versions of the import_* functions which are more suitable for
 * # Cython code.
 * cdef inline int import_array() except -1:             # <<<<<<<<<<<<<<
 *     try:
 *         __pyx_import_array()
 */

static CYTHON_INLINE int __pyx_f_5numpy_import_array(void) {
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  int __pyx_t_4;
  PyObject *__pyx_t_5 = NULL;
  PyObject *__pyx_t_6 = NULL;
  PyObject *__pyx_t_7 = NULL;
  PyObject *__pyx_t_8 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("import_array", 1);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":980
 * # Cython code.
 * cdef inline int import_array() except -1:
 *     try:             # <<<<<<<<<<<<<<
 *         __pyx_import_array()
 *     except Exception:
 */
  {
    __Pyx_PyThreadState_declare
    __Pyx_PyThreadState_assign
    __Pyx_ExceptionSave(&__pyx_t_1, &__pyx_t_2, &__pyx_t_3);
    __Pyx_XGOTREF(__pyx_t_1);
    __Pyx_XGOTREF(__pyx_t_2);
    __Pyx_XGOTREF(__pyx_t_3);
    /*try:*/ {

      /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":981
 * cdef inline int import_array() except -1:
 *     try:
 *         __pyx_import_array()             # <<<<<<<<<<<<<<
 *     except Exception:
 *         raise ImportError("numpy.core.multiarray failed to import")
 */
      __pyx_t_4 = _import_array(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(2, 981, __pyx_L3_error)

      /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":980
 * # Cython code.
 * cdef inline int import_array() except -1:
 *     try:             # <<<<<<<<<<<<<<
 *         __pyx_import_array()
 *     except Exception:
 */
    }
    __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
    __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
    __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
    goto __pyx_L8_try_end;
    __pyx_L3_error:;

    /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":982
 *     try:
 *         __pyx_import_array()
 *     except Exception:             # <<<<<<<<<<<<<<
 *         raise ImportError("numpy.core.multiarray failed to import")
 * 
 */
    __pyx_t_4 = __Pyx_PyErr_ExceptionMatches(((PyObject *)(&((PyTypeObject*)PyExc_Exception)[0])));
    if (__pyx_t_4) {
      __Pyx_AddTraceback("numpy.import_array", __pyx_clineno, __pyx_lineno, __pyx_filename);
      if (__Pyx_GetException(&__pyx_t_5, &__pyx_t_6, &__pyx_t_7) < 0) __PYX_ERR(2, 982, __pyx_L5_except_error)
      __Pyx_XGOTREF(__pyx_t_5);
      __Pyx_XGOTREF(__pyx_t_6);
      __Pyx_XGOTREF(__pyx_t_7);

      /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":983
 *         __pyx_import_array()
 *     except Exception:
 *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
 * 
 * cdef inline int import_umath() except -1:
 */
      __pyx_t_8 = __Pyx_PyObject_Call(__pyx_builtin_ImportError, __pyx_tuple_, NULL); if (unlikely(!__pyx_t_8)) __PYX_ERR(2, 983, __pyx_L5_except_error)
      __Pyx_GOTREF(__pyx_t_8);
      __Pyx_Raise(__pyx_t_8, 0, 0, 0);
      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
      __PYX_ERR(2, 983, __pyx_L5_except_error)
    }
    goto __pyx_L5_except_error;

    /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":980
 * # Cython code.
 * cdef inline int import_array() except -1:
 *     try:             # <<<<<<<<<<<<<<
 *         __pyx_import_array()
 *     except Exception:
 */
    __pyx_L5_except_error:;
    __Pyx_XGIVEREF(__pyx_t_1);
    __Pyx_XGIVEREF(__pyx_t_2);
    __Pyx_XGIVEREF(__pyx_t_3);
    __Pyx_ExceptionReset(__pyx_t_1, __pyx_t_2, __pyx_t_3);
    goto __pyx_L1_error;
    __pyx_L8_try_end:;
  }

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":979
 * # Versions of the import_* functions which are more suitable for
 * # Cython code.
 * cdef inline int import_array() except -1:             # <<<<<<<<<<<<<<
 *     try:
 *         __pyx_import_array()
 */

  /* function exit code */
  __pyx_r = 0;
  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_5);
  __Pyx_XDECREF(__pyx_t_6);
  __Pyx_XDECREF(__pyx_t_7);
  __Pyx_XDECREF(__pyx_t_8);
  __Pyx_AddTraceback("numpy.import_array", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = -1;
  __pyx_L0:;
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":985
 *         raise ImportError("numpy.core.multiarray failed to import")
 * 
 * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
 *     try:
 *         _import_umath()
 */

static CYTHON_INLINE int __pyx_f_5numpy_import_umath(void) {
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  int __pyx_t_4;
  PyObject *__pyx_t_5 = NULL;
  PyObject *__pyx_t_6 = NULL;
  PyObject *__pyx_t_7 = NULL;
  PyObject *__pyx_t_8 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("import_umath", 1);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":986
 * 
 * cdef inline int import_umath() except -1:
 *     try:             # <<<<<<<<<<<<<<
 *         _import_umath()
 *     except Exception:
 */
  {
    __Pyx_PyThreadState_declare
    __Pyx_PyThreadState_assign
    __Pyx_ExceptionSave(&__pyx_t_1, &__pyx_t_2, &__pyx_t_3);
    __Pyx_XGOTREF(__pyx_t_1);
    __Pyx_XGOTREF(__pyx_t_2);
    __Pyx_XGOTREF(__pyx_t_3);
    /*try:*/ {

      /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":987
 * cdef inline int import_umath() except -1:
 *     try:
 *         _import_umath()             # <<<<<<<<<<<<<<
 *     except Exception:
 *         raise ImportError("numpy.core.umath failed to import")
 */
      __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(2, 987, __pyx_L3_error)

      /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":986
 * 
 * cdef inline int import_umath() except -1:
 *     try:             # <<<<<<<<<<<<<<
 *         _import_umath()
 *     except Exception:
 */
    }
    __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
    __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
    __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
    goto __pyx_L8_try_end;
    __pyx_L3_error:;

    /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":988
 *     try:
 *         _import_umath()
 *     except Exception:             # <<<<<<<<<<<<<<
 *         raise ImportError("numpy.core.umath failed to import")
 * 
 */
    __pyx_t_4 = __Pyx_PyErr_ExceptionMatches(((PyObject *)(&((PyTypeObject*)PyExc_Exception)[0])));
    if (__pyx_t_4) {
      __Pyx_AddTraceback("numpy.import_umath", __pyx_clineno, __pyx_lineno, __pyx_filename);
      if (__Pyx_GetException(&__pyx_t_5, &__pyx_t_6, &__pyx_t_7) < 0) __PYX_ERR(2, 988, __pyx_L5_except_error)
      __Pyx_XGOTREF(__pyx_t_5);
      __Pyx_XGOTREF(__pyx_t_6);
      __Pyx_XGOTREF(__pyx_t_7);

      /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":989
 *         _import_umath()
 *     except Exception:
 *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
 * 
 * cdef inline int import_ufunc() except -1:
 */
      __pyx_t_8 = __Pyx_PyObject_Call(__pyx_builtin_ImportError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_8)) __PYX_ERR(2, 989, __pyx_L5_except_error)
      __Pyx_GOTREF(__pyx_t_8);
      __Pyx_Raise(__pyx_t_8, 0, 0, 0);
      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
      __PYX_ERR(2, 989, __pyx_L5_except_error)
    }
    goto __pyx_L5_except_error;

    /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":986
 * 
 * cdef inline int import_umath() except -1:
 *     try:             # <<<<<<<<<<<<<<
 *         _import_umath()
 *     except Exception:
 */
    __pyx_L5_except_error:;
    __Pyx_XGIVEREF(__pyx_t_1);
    __Pyx_XGIVEREF(__pyx_t_2);
    __Pyx_XGIVEREF(__pyx_t_3);
    __Pyx_ExceptionReset(__pyx_t_1, __pyx_t_2, __pyx_t_3);
    goto __pyx_L1_error;
    __pyx_L8_try_end:;
  }

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":985
 *         raise ImportError("numpy.core.multiarray failed to import")
 * 
 * cdef inline int import_umath() except -1:             # <<<<<<<<<<<<<<
 *     try:
 *         _import_umath()
 */

  /* function exit code */
  __pyx_r = 0;
  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_5);
  __Pyx_XDECREF(__pyx_t_6);
  __Pyx_XDECREF(__pyx_t_7);
  __Pyx_XDECREF(__pyx_t_8);
  __Pyx_AddTraceback("numpy.import_umath", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = -1;
  __pyx_L0:;
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":991
 *         raise ImportError("numpy.core.umath failed to import")
 * 
 * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
 *     try:
 *         _import_umath()
 */

static CYTHON_INLINE int __pyx_f_5numpy_import_ufunc(void) {
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  int __pyx_t_4;
  PyObject *__pyx_t_5 = NULL;
  PyObject *__pyx_t_6 = NULL;
  PyObject *__pyx_t_7 = NULL;
  PyObject *__pyx_t_8 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("import_ufunc", 1);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":992
 * 
 * cdef inline int import_ufunc() except -1:
 *     try:             # <<<<<<<<<<<<<<
 *         _import_umath()
 *     except Exception:
 */
  {
    __Pyx_PyThreadState_declare
    __Pyx_PyThreadState_assign
    __Pyx_ExceptionSave(&__pyx_t_1, &__pyx_t_2, &__pyx_t_3);
    __Pyx_XGOTREF(__pyx_t_1);
    __Pyx_XGOTREF(__pyx_t_2);
    __Pyx_XGOTREF(__pyx_t_3);
    /*try:*/ {

      /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":993
 * cdef inline int import_ufunc() except -1:
 *     try:
 *         _import_umath()             # <<<<<<<<<<<<<<
 *     except Exception:
 *         raise ImportError("numpy.core.umath failed to import")
 */
      __pyx_t_4 = _import_umath(); if (unlikely(__pyx_t_4 == ((int)-1))) __PYX_ERR(2, 993, __pyx_L3_error)

      /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":992
 * 
 * cdef inline int import_ufunc() except -1:
 *     try:             # <<<<<<<<<<<<<<
 *         _import_umath()
 *     except Exception:
 */
    }
    __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
    __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
    __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
    goto __pyx_L8_try_end;
    __pyx_L3_error:;

    /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":994
 *     try:
 *         _import_umath()
 *     except Exception:             # <<<<<<<<<<<<<<
 *         raise ImportError("numpy.core.umath failed to import")
 * 
 */
    __pyx_t_4 = __Pyx_PyErr_ExceptionMatches(((PyObject *)(&((PyTypeObject*)PyExc_Exception)[0])));
    if (__pyx_t_4) {
      __Pyx_AddTraceback("numpy.import_ufunc", __pyx_clineno, __pyx_lineno, __pyx_filename);
      if (__Pyx_GetException(&__pyx_t_5, &__pyx_t_6, &__pyx_t_7) < 0) __PYX_ERR(2, 994, __pyx_L5_except_error)
      __Pyx_XGOTREF(__pyx_t_5);
      __Pyx_XGOTREF(__pyx_t_6);
      __Pyx_XGOTREF(__pyx_t_7);

      /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":995
 *         _import_umath()
 *     except Exception:
 *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
 * 
 * 
 */
      __pyx_t_8 = __Pyx_PyObject_Call(__pyx_builtin_ImportError, __pyx_tuple__2, NULL); if (unlikely(!__pyx_t_8)) __PYX_ERR(2, 995, __pyx_L5_except_error)
      __Pyx_GOTREF(__pyx_t_8);
      __Pyx_Raise(__pyx_t_8, 0, 0, 0);
      __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
      __PYX_ERR(2, 995, __pyx_L5_except_error)
    }
    goto __pyx_L5_except_error;

    /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":992
 * 
 * cdef inline int import_ufunc() except -1:
 *     try:             # <<<<<<<<<<<<<<
 *         _import_umath()
 *     except Exception:
 */
    __pyx_L5_except_error:;
    __Pyx_XGIVEREF(__pyx_t_1);
    __Pyx_XGIVEREF(__pyx_t_2);
    __Pyx_XGIVEREF(__pyx_t_3);
    __Pyx_ExceptionReset(__pyx_t_1, __pyx_t_2, __pyx_t_3);
    goto __pyx_L1_error;
    __pyx_L8_try_end:;
  }

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":991
 *         raise ImportError("numpy.core.umath failed to import")
 * 
 * cdef inline int import_ufunc() except -1:             # <<<<<<<<<<<<<<
 *     try:
 *         _import_umath()
 */

  /* function exit code */
  __pyx_r = 0;
  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_5);
  __Pyx_XDECREF(__pyx_t_6);
  __Pyx_XDECREF(__pyx_t_7);
  __Pyx_XDECREF(__pyx_t_8);
  __Pyx_AddTraceback("numpy.import_ufunc", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = -1;
  __pyx_L0:;
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":998
 * 
 * 
 * cdef inline bint is_timedelta64_object(object obj):             # <<<<<<<<<<<<<<
 *     """
 *     Cython equivalent of `isinstance(obj, np.timedelta64)`
 */

static CYTHON_INLINE int __pyx_f_5numpy_is_timedelta64_object(PyObject *__pyx_v_obj) {
  int __pyx_r;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1010
 *     bool
 *     """
 *     return PyObject_TypeCheck(obj, &PyTimedeltaArrType_Type)             # <<<<<<<<<<<<<<
 * 
 * 
 */
  __pyx_r = PyObject_TypeCheck(__pyx_v_obj, (&PyTimedeltaArrType_Type));
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":998
 * 
 * 
 * cdef inline bint is_timedelta64_object(object obj):             # <<<<<<<<<<<<<<
 *     """
 *     Cython equivalent of `isinstance(obj, np.timedelta64)`
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1013
 * 
 * 
 * cdef inline bint is_datetime64_object(object obj):             # <<<<<<<<<<<<<<
 *     """
 *     Cython equivalent of `isinstance(obj, np.datetime64)`
 */

static CYTHON_INLINE int __pyx_f_5numpy_is_datetime64_object(PyObject *__pyx_v_obj) {
  int __pyx_r;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1025
 *     bool
 *     """
 *     return PyObject_TypeCheck(obj, &PyDatetimeArrType_Type)             # <<<<<<<<<<<<<<
 * 
 * 
 */
  __pyx_r = PyObject_TypeCheck(__pyx_v_obj, (&PyDatetimeArrType_Type));
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1013
 * 
 * 
 * cdef inline bint is_datetime64_object(object obj):             # <<<<<<<<<<<<<<
 *     """
 *     Cython equivalent of `isinstance(obj, np.datetime64)`
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1028
 * 
 * 
 * cdef inline npy_datetime get_datetime64_value(object obj) nogil:             # <<<<<<<<<<<<<<
 *     """
 *     returns the int64 value underlying scalar numpy datetime64 object
 */

static CYTHON_INLINE npy_datetime __pyx_f_5numpy_get_datetime64_value(PyObject *__pyx_v_obj) {
  npy_datetime __pyx_r;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1035
 *     also needed.  That can be found using `get_datetime64_unit`.
 *     """
 *     return (<PyDatetimeScalarObject*>obj).obval             # <<<<<<<<<<<<<<
 * 
 * 
 */
  __pyx_r = ((PyDatetimeScalarObject *)__pyx_v_obj)->obval;
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1028
 * 
 * 
 * cdef inline npy_datetime get_datetime64_value(object obj) nogil:             # <<<<<<<<<<<<<<
 *     """
 *     returns the int64 value underlying scalar numpy datetime64 object
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1038
 * 
 * 
 * cdef inline npy_timedelta get_timedelta64_value(object obj) nogil:             # <<<<<<<<<<<<<<
 *     """
 *     returns the int64 value underlying scalar numpy timedelta64 object
 */

static CYTHON_INLINE npy_timedelta __pyx_f_5numpy_get_timedelta64_value(PyObject *__pyx_v_obj) {
  npy_timedelta __pyx_r;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1042
 *     returns the int64 value underlying scalar numpy timedelta64 object
 *     """
 *     return (<PyTimedeltaScalarObject*>obj).obval             # <<<<<<<<<<<<<<
 * 
 * 
 */
  __pyx_r = ((PyTimedeltaScalarObject *)__pyx_v_obj)->obval;
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1038
 * 
 * 
 * cdef inline npy_timedelta get_timedelta64_value(object obj) nogil:             # <<<<<<<<<<<<<<
 *     """
 *     returns the int64 value underlying scalar numpy timedelta64 object
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1045
 * 
 * 
 * cdef inline NPY_DATETIMEUNIT get_datetime64_unit(object obj) nogil:             # <<<<<<<<<<<<<<
 *     """
 *     returns the unit part of the dtype for a numpy datetime64 object.
 */

static CYTHON_INLINE NPY_DATETIMEUNIT __pyx_f_5numpy_get_datetime64_unit(PyObject *__pyx_v_obj) {
  NPY_DATETIMEUNIT __pyx_r;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1049
 *     returns the unit part of the dtype for a numpy datetime64 object.
 *     """
 *     return <NPY_DATETIMEUNIT>(<PyDatetimeScalarObject*>obj).obmeta.base             # <<<<<<<<<<<<<<
 */
  __pyx_r = ((NPY_DATETIMEUNIT)((PyDatetimeScalarObject *)__pyx_v_obj)->obmeta.base);
  goto __pyx_L0;

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":1045
 * 
 * 
 * cdef inline NPY_DATETIMEUNIT get_datetime64_unit(object obj) nogil:             # <<<<<<<<<<<<<<
 *     """
 *     returns the unit part of the dtype for a numpy datetime64 object.
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":44
 *     cdef FeatureEngineer feature_engineer
 * 
 *     def __init__(self, FeatureEngineer feature_engineer):             # <<<<<<<<<<<<<<
 *         self.feature_engineer = feature_engineer
 * 
 */

/* Python wrapper */
static int __pyx_pw_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
static int __pyx_pw_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
  struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *__pyx_v_feature_engineer = 0;
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__init__ (wrapper)", 0);
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return -1;
  #endif
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_feature_engineer,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_VARARGS(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_VARARGS(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_feature_engineer)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 44, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__init__") < 0)) __PYX_ERR(0, 44, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_VARARGS(__pyx_args, 0);
    }
    __pyx_v_feature_engineer = ((struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *)values[0]);
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__init__", 1, 1, 1, __pyx_nargs); __PYX_ERR(0, 44, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_VARARGS(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return -1;
  __pyx_L4_argument_unpacking_done:;
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_feature_engineer), __pyx_ptype_8wildboar_9transform_8_feature_FeatureEngineer, 1, "feature_engineer", 0))) __PYX_ERR(0, 44, __pyx_L1_error)
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_19TreeFeatureEngineer___init__(((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self), __pyx_v_feature_engineer);

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  __pyx_r = -1;
  __pyx_L0:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_VARARGS(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static int __pyx_pf_8wildboar_4tree_6_ctree_19TreeFeatureEngineer___init__(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *__pyx_v_feature_engineer) {
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__init__", 1);

  /* "wildboar/tree/_ctree.pyx":45
 * 
 *     def __init__(self, FeatureEngineer feature_engineer):
 *         self.feature_engineer = feature_engineer             # <<<<<<<<<<<<<<
 * 
 *     def __reduce__(self):
 */
  __Pyx_INCREF((PyObject *)__pyx_v_feature_engineer);
  __Pyx_GIVEREF((PyObject *)__pyx_v_feature_engineer);
  __Pyx_GOTREF((PyObject *)__pyx_v_self->feature_engineer);
  __Pyx_DECREF((PyObject *)__pyx_v_self->feature_engineer);
  __pyx_v_self->feature_engineer = __pyx_v_feature_engineer;

  /* "wildboar/tree/_ctree.pyx":44
 *     cdef FeatureEngineer feature_engineer
 * 
 *     def __init__(self, FeatureEngineer feature_engineer):             # <<<<<<<<<<<<<<
 *         self.feature_engineer = feature_engineer
 * 
 */

  /* function exit code */
  __pyx_r = 0;
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":47
 *         self.feature_engineer = feature_engineer
 * 
 *     def __reduce__(self):             # <<<<<<<<<<<<<<
 *         return self.__class__, (self.feature_engineer, )
 * 
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_3__reduce__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_3__reduce__ = {"__reduce__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_3__reduce__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_3__reduce__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__reduce__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  if (unlikely(__pyx_nargs > 0)) {
    __Pyx_RaiseArgtupleInvalid("__reduce__", 1, 0, 0, __pyx_nargs); return NULL;}
  if (unlikely(__pyx_kwds) && __Pyx_NumKwargs_FASTCALL(__pyx_kwds) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__reduce__", 0))) return NULL;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_2__reduce__(((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_2__reduce__(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__reduce__", 1);

  /* "wildboar/tree/_ctree.pyx":48
 * 
 *     def __reduce__(self):
 *         return self.__class__, (self.feature_engineer, )             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t reset(self, Dataset td) nogil:
 */
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_class); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 48, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = PyTuple_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 48, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_INCREF((PyObject *)__pyx_v_self->feature_engineer);
  __Pyx_GIVEREF((PyObject *)__pyx_v_self->feature_engineer);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_v_self->feature_engineer))) __PYX_ERR(0, 48, __pyx_L1_error);
  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 48, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_GIVEREF(__pyx_t_1);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1)) __PYX_ERR(0, 48, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_2);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_2)) __PYX_ERR(0, 48, __pyx_L1_error);
  __pyx_t_1 = 0;
  __pyx_t_2 = 0;
  __pyx_r = __pyx_t_3;
  __pyx_t_3 = 0;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":47
 *         self.feature_engineer = feature_engineer
 * 
 *     def __reduce__(self):             # <<<<<<<<<<<<<<
 *         return self.__class__, (self.feature_engineer, )
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.__reduce__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":50
 *         return self.__class__, (self.feature_engineer, )
 * 
 *     cdef Py_ssize_t reset(self, Dataset td) nogil:             # <<<<<<<<<<<<<<
 *         return self.feature_engineer.reset(td)
 * 
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_reset(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td) {
  Py_ssize_t __pyx_r;
  Py_ssize_t __pyx_t_1;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":51
 * 
 *     cdef Py_ssize_t reset(self, Dataset td) nogil:
 *         return self.feature_engineer.reset(td)             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t get_n_features(self, Dataset td, Py_ssize_t depth) nogil:
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->reset(__pyx_v_self->feature_engineer, __pyx_v_td); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 51, __pyx_L1_error)
  __pyx_r = __pyx_t_1;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":50
 *         return self.__class__, (self.feature_engineer, )
 * 
 *     cdef Py_ssize_t reset(self, Dataset td) nogil:             # <<<<<<<<<<<<<<
 *         return self.feature_engineer.reset(td)
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.reset", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":53
 *         return self.feature_engineer.reset(td)
 * 
 *     cdef Py_ssize_t get_n_features(self, Dataset td, Py_ssize_t depth) nogil:             # <<<<<<<<<<<<<<
 *         return self.feature_engineer.get_n_features(td)
 * 
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_get_n_features(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, CYTHON_UNUSED Py_ssize_t __pyx_v_depth) {
  Py_ssize_t __pyx_r;
  Py_ssize_t __pyx_t_1;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":54
 * 
 *     cdef Py_ssize_t get_n_features(self, Dataset td, Py_ssize_t depth) nogil:
 *         return self.feature_engineer.get_n_features(td)             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t next_feature(
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->get_n_features(__pyx_v_self->feature_engineer, __pyx_v_td); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 54, __pyx_L1_error)
  __pyx_r = __pyx_t_1;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":53
 *         return self.feature_engineer.reset(td)
 * 
 *     cdef Py_ssize_t get_n_features(self, Dataset td, Py_ssize_t depth) nogil:             # <<<<<<<<<<<<<<
 *         return self.feature_engineer.get_n_features(td)
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.get_n_features", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":56
 *         return self.feature_engineer.get_n_features(td)
 * 
 *     cdef Py_ssize_t next_feature(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t feature_id,
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_next_feature(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, Py_ssize_t __pyx_v_feature_id, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, Py_ssize_t *__pyx_v_samples, Py_ssize_t __pyx_v_n_samples, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_transient, size_t *__pyx_v_seed) {
  Py_ssize_t __pyx_r;
  Py_ssize_t __pyx_t_1;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":65
 *         size_t *seed
 *     ) nogil:
 *         return self.feature_engineer.next_feature(             # <<<<<<<<<<<<<<
 *             feature_id, td, samples, n_samples, transient, seed
 *         )
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->next_feature(__pyx_v_self->feature_engineer, __pyx_v_feature_id, __pyx_v_td, __pyx_v_samples, __pyx_v_n_samples, __pyx_v_transient, __pyx_v_seed); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 65, __pyx_L1_error)
  __pyx_r = __pyx_t_1;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":56
 *         return self.feature_engineer.get_n_features(td)
 * 
 *     cdef Py_ssize_t next_feature(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t feature_id,
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.next_feature", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":69
 *         )
 * 
 *     cdef Py_ssize_t init_persistent_feature(             # <<<<<<<<<<<<<<
 *         self,
 *         Dataset td,
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_init_persistent_feature(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_transient, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_persistent) {
  Py_ssize_t __pyx_r;
  Py_ssize_t __pyx_t_1;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":75
 *         Feature *persistent
 *     ) nogil:
 *         return self.feature_engineer.init_persistent_feature(td, transient, persistent)             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t free_transient_feature(self, Feature *feature) nogil:
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->init_persistent_feature(__pyx_v_self->feature_engineer, __pyx_v_td, __pyx_v_transient, __pyx_v_persistent); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 75, __pyx_L1_error)
  __pyx_r = __pyx_t_1;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":69
 *         )
 * 
 *     cdef Py_ssize_t init_persistent_feature(             # <<<<<<<<<<<<<<
 *         self,
 *         Dataset td,
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.init_persistent_feature", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":77
 *         return self.feature_engineer.init_persistent_feature(td, transient, persistent)
 * 
 *     cdef Py_ssize_t free_transient_feature(self, Feature *feature) nogil:             # <<<<<<<<<<<<<<
 *         return self.feature_engineer.free_transient_feature(feature)
 * 
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_free_transient_feature(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature) {
  Py_ssize_t __pyx_r;
  Py_ssize_t __pyx_t_1;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":78
 * 
 *     cdef Py_ssize_t free_transient_feature(self, Feature *feature) nogil:
 *         return self.feature_engineer.free_transient_feature(feature)             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t free_persistent_feature(self, Feature *feature) nogil:
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->free_transient_feature(__pyx_v_self->feature_engineer, __pyx_v_feature); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 78, __pyx_L1_error)
  __pyx_r = __pyx_t_1;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":77
 *         return self.feature_engineer.init_persistent_feature(td, transient, persistent)
 * 
 *     cdef Py_ssize_t free_transient_feature(self, Feature *feature) nogil:             # <<<<<<<<<<<<<<
 *         return self.feature_engineer.free_transient_feature(feature)
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.free_transient_feature", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":80
 *         return self.feature_engineer.free_transient_feature(feature)
 * 
 *     cdef Py_ssize_t free_persistent_feature(self, Feature *feature) nogil:             # <<<<<<<<<<<<<<
 *         return self.feature_engineer.free_persistent_feature(feature)
 * 
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_free_persistent_feature(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature) {
  Py_ssize_t __pyx_r;
  Py_ssize_t __pyx_t_1;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":81
 * 
 *     cdef Py_ssize_t free_persistent_feature(self, Feature *feature) nogil:
 *         return self.feature_engineer.free_persistent_feature(feature)             # <<<<<<<<<<<<<<
 * 
 *     cdef double transient_feature_value(
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->free_persistent_feature(__pyx_v_self->feature_engineer, __pyx_v_feature); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 81, __pyx_L1_error)
  __pyx_r = __pyx_t_1;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":80
 *         return self.feature_engineer.free_transient_feature(feature)
 * 
 *     cdef Py_ssize_t free_persistent_feature(self, Feature *feature) nogil:             # <<<<<<<<<<<<<<
 *         return self.feature_engineer.free_persistent_feature(feature)
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.free_persistent_feature", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":83
 *         return self.feature_engineer.free_persistent_feature(feature)
 * 
 *     cdef double transient_feature_value(             # <<<<<<<<<<<<<<
 *         self,
 *         Feature *feature,
 */

static double __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_transient_feature_value(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, Py_ssize_t __pyx_v_sample) {
  double __pyx_r;
  double __pyx_t_1;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":89
 *         Py_ssize_t sample
 *     ) nogil:
 *         return self.feature_engineer.transient_feature_value(feature, td, sample)             # <<<<<<<<<<<<<<
 * 
 *     cdef double persistent_feature_value(
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->transient_feature_value(__pyx_v_self->feature_engineer, __pyx_v_feature, __pyx_v_td, __pyx_v_sample); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 89, __pyx_L1_error)
  __pyx_r = __pyx_t_1;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":83
 *         return self.feature_engineer.free_persistent_feature(feature)
 * 
 *     cdef double transient_feature_value(             # <<<<<<<<<<<<<<
 *         self,
 *         Feature *feature,
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.transient_feature_value", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":91
 *         return self.feature_engineer.transient_feature_value(feature, td, sample)
 * 
 *     cdef double persistent_feature_value(             # <<<<<<<<<<<<<<
 *         self,
 *         Feature *feature,
 */

static double __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_persistent_feature_value(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, Py_ssize_t __pyx_v_sample) {
  double __pyx_r;
  double __pyx_t_1;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":97
 *         Py_ssize_t sample
 *     ) nogil:
 *         return self.feature_engineer.persistent_feature_value(feature, td, sample)             # <<<<<<<<<<<<<<
 * 
 *     cdef void transient_feature_values(
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->persistent_feature_value(__pyx_v_self->feature_engineer, __pyx_v_feature, __pyx_v_td, __pyx_v_sample); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 97, __pyx_L1_error)
  __pyx_r = __pyx_t_1;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":91
 *         return self.feature_engineer.transient_feature_value(feature, td, sample)
 * 
 *     cdef double persistent_feature_value(             # <<<<<<<<<<<<<<
 *         self,
 *         Feature *feature,
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.persistent_feature_value", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":99
 *         return self.feature_engineer.persistent_feature_value(feature, td, sample)
 * 
 *     cdef void transient_feature_values(             # <<<<<<<<<<<<<<
 *         self,
 *         Feature *feature,
 */

static void __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_transient_feature_values(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, Py_ssize_t *__pyx_v_samples, Py_ssize_t __pyx_v_n_samples, double *__pyx_v_values) {
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":107
 *         double* values
 *     ) nogil:
 *         self.feature_engineer.transient_feature_values(             # <<<<<<<<<<<<<<
 *             feature, td, samples, n_samples, values
 *         )
 */
  ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->transient_feature_values(__pyx_v_self->feature_engineer, __pyx_v_feature, __pyx_v_td, __pyx_v_samples, __pyx_v_n_samples, __pyx_v_values); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 107, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":99
 *         return self.feature_engineer.persistent_feature_value(feature, td, sample)
 * 
 *     cdef void transient_feature_values(             # <<<<<<<<<<<<<<
 *         self,
 *         Feature *feature,
 */

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.transient_feature_values", __pyx_clineno, __pyx_lineno, __pyx_filename);
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
}

/* "wildboar/tree/_ctree.pyx":111
 *         )
 * 
 *     cdef void persistent_feature_values(             # <<<<<<<<<<<<<<
 *         self,
 *         Feature *feature,
 */

static void __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_persistent_feature_values(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, Py_ssize_t *__pyx_v_samples, Py_ssize_t __pyx_v_n_samples, double *__pyx_v_values) {
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":119
 *         double* values
 *     ) nogil:
 *         self.feature_engineer.persistent_feature_values(             # <<<<<<<<<<<<<<
 *             feature, td, samples, n_samples, values
 *         )
 */
  ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->persistent_feature_values(__pyx_v_self->feature_engineer, __pyx_v_feature, __pyx_v_td, __pyx_v_samples, __pyx_v_n_samples, __pyx_v_values); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 119, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":111
 *         )
 * 
 *     cdef void persistent_feature_values(             # <<<<<<<<<<<<<<
 *         self,
 *         Feature *feature,
 */

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.persistent_feature_values", __pyx_clineno, __pyx_lineno, __pyx_filename);
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
}

/* "wildboar/tree/_ctree.pyx":123
 *         )
 * 
 *     cdef object persistent_feature_to_object(self, Feature *feature):             # <<<<<<<<<<<<<<
 *         return self.feature_engineer.persistent_feature_to_object(feature)
 * 
 */

static PyObject *__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_persistent_feature_to_object(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("persistent_feature_to_object", 1);

  /* "wildboar/tree/_ctree.pyx":124
 * 
 *     cdef object persistent_feature_to_object(self, Feature *feature):
 *         return self.feature_engineer.persistent_feature_to_object(feature)             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t persistent_feature_from_object(self, object object, Feature *feature):
 */
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->persistent_feature_to_object(__pyx_v_self->feature_engineer, __pyx_v_feature); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 124, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_r = __pyx_t_1;
  __pyx_t_1 = 0;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":123
 *         )
 * 
 *     cdef object persistent_feature_to_object(self, Feature *feature):             # <<<<<<<<<<<<<<
 *         return self.feature_engineer.persistent_feature_to_object(feature)
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.persistent_feature_to_object", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":126
 *         return self.feature_engineer.persistent_feature_to_object(feature)
 * 
 *     cdef Py_ssize_t persistent_feature_from_object(self, object object, Feature *feature):             # <<<<<<<<<<<<<<
 *         return self.feature_engineer.persistent_feature_from_object(object, feature)
 * 
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_persistent_feature_from_object(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_self, PyObject *__pyx_v_object, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature) {
  Py_ssize_t __pyx_r;
  Py_ssize_t __pyx_t_1;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;

  /* "wildboar/tree/_ctree.pyx":127
 * 
 *     cdef Py_ssize_t persistent_feature_from_object(self, object object, Feature *feature):
 *         return self.feature_engineer.persistent_feature_from_object(object, feature)             # <<<<<<<<<<<<<<
 * 
 * 
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->persistent_feature_from_object(__pyx_v_self->feature_engineer, __pyx_v_object, __pyx_v_feature); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 127, __pyx_L1_error)
  __pyx_r = __pyx_t_1;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":126
 *         return self.feature_engineer.persistent_feature_to_object(feature)
 * 
 *     cdef Py_ssize_t persistent_feature_from_object(self, object object, Feature *feature):             # <<<<<<<<<<<<<<
 *         return self.feature_engineer.persistent_feature_from_object(object, feature)
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeFeatureEngineer.persistent_feature_from_object", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":134
 *     cdef double alpha
 * 
 *     def __init__(self, FeatureEngineer feature_engineer, double alpha):             # <<<<<<<<<<<<<<
 *         super().__init__(feature_engineer)
 *         self.alpha = alpha
 */

/* Python wrapper */
static int __pyx_pw_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
static int __pyx_pw_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_1__init__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
  struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *__pyx_v_feature_engineer = 0;
  double __pyx_v_alpha;
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[2] = {0,0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__init__ (wrapper)", 0);
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return -1;
  #endif
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_feature_engineer,&__pyx_n_s_alpha,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  2: values[1] = __Pyx_Arg_VARARGS(__pyx_args, 1);
        CYTHON_FALLTHROUGH;
        case  1: values[0] = __Pyx_Arg_VARARGS(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_VARARGS(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_feature_engineer)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
        CYTHON_FALLTHROUGH;
        case  1:
        if (likely((values[1] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_alpha)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[1]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("__init__", 1, 2, 2, 1); __PYX_ERR(0, 134, __pyx_L3_error)
        }
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__init__") < 0)) __PYX_ERR(0, 134, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 2)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_VARARGS(__pyx_args, 0);
      values[1] = __Pyx_Arg_VARARGS(__pyx_args, 1);
    }
    __pyx_v_feature_engineer = ((struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *)values[0]);
    __pyx_v_alpha = __pyx_PyFloat_AsDouble(values[1]); if (unlikely((__pyx_v_alpha == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 134, __pyx_L3_error)
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__init__", 1, 2, 2, __pyx_nargs); __PYX_ERR(0, 134, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_VARARGS(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.DynamicTreeFeatureEngineer.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return -1;
  __pyx_L4_argument_unpacking_done:;
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_feature_engineer), __pyx_ptype_8wildboar_9transform_8_feature_FeatureEngineer, 1, "feature_engineer", 0))) __PYX_ERR(0, 134, __pyx_L1_error)
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer___init__(((struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer *)__pyx_v_self), __pyx_v_feature_engineer, __pyx_v_alpha);

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  __pyx_r = -1;
  __pyx_L0:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_VARARGS(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static int __pyx_pf_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer___init__(struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer *__pyx_v_self, struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *__pyx_v_feature_engineer, double __pyx_v_alpha) {
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  int __pyx_t_4;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__init__", 1);

  /* "wildboar/tree/_ctree.pyx":135
 * 
 *     def __init__(self, FeatureEngineer feature_engineer, double alpha):
 *         super().__init__(feature_engineer)             # <<<<<<<<<<<<<<
 *         self.alpha = alpha
 * 
 */
  __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 135, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_INCREF((PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer);
  __Pyx_GIVEREF((PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer))) __PYX_ERR(0, 135, __pyx_L1_error);
  __Pyx_INCREF((PyObject *)__pyx_v_self);
  __Pyx_GIVEREF((PyObject *)__pyx_v_self);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_2, 1, ((PyObject *)__pyx_v_self))) __PYX_ERR(0, 135, __pyx_L1_error);
  __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_super, __pyx_t_2, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 135, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_init); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 135, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __pyx_t_3 = NULL;
  __pyx_t_4 = 0;
  #if CYTHON_UNPACK_METHODS
  if (likely(PyMethod_Check(__pyx_t_2))) {
    __pyx_t_3 = PyMethod_GET_SELF(__pyx_t_2);
    if (likely(__pyx_t_3)) {
      PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_2);
      __Pyx_INCREF(__pyx_t_3);
      __Pyx_INCREF(function);
      __Pyx_DECREF_SET(__pyx_t_2, function);
      __pyx_t_4 = 1;
    }
  }
  #endif
  {
    PyObject *__pyx_callargs[2] = {__pyx_t_3, ((PyObject *)__pyx_v_feature_engineer)};
    __pyx_t_1 = __Pyx_PyObject_FastCall(__pyx_t_2, __pyx_callargs+1-__pyx_t_4, 1+__pyx_t_4);
    __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
    if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 135, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_1);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  }
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;

  /* "wildboar/tree/_ctree.pyx":136
 *     def __init__(self, FeatureEngineer feature_engineer, double alpha):
 *         super().__init__(feature_engineer)
 *         self.alpha = alpha             # <<<<<<<<<<<<<<
 * 
 *     def __reduce__(self):
 */
  __pyx_v_self->alpha = __pyx_v_alpha;

  /* "wildboar/tree/_ctree.pyx":134
 *     cdef double alpha
 * 
 *     def __init__(self, FeatureEngineer feature_engineer, double alpha):             # <<<<<<<<<<<<<<
 *         super().__init__(feature_engineer)
 *         self.alpha = alpha
 */

  /* function exit code */
  __pyx_r = 0;
  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_AddTraceback("wildboar.tree._ctree.DynamicTreeFeatureEngineer.__init__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = -1;
  __pyx_L0:;
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":138
 *         self.alpha = alpha
 * 
 *     def __reduce__(self):             # <<<<<<<<<<<<<<
 *         return self.__class__, (self.feature_engineer, self.alpha)
 * 
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_3__reduce__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_3__reduce__ = {"__reduce__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_3__reduce__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_3__reduce__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__reduce__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  if (unlikely(__pyx_nargs > 0)) {
    __Pyx_RaiseArgtupleInvalid("__reduce__", 1, 0, 0, __pyx_nargs); return NULL;}
  if (unlikely(__pyx_kwds) && __Pyx_NumKwargs_FASTCALL(__pyx_kwds) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__reduce__", 0))) return NULL;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_2__reduce__(((struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_2__reduce__(struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__reduce__", 1);

  /* "wildboar/tree/_ctree.pyx":139
 * 
 *     def __reduce__(self):
 *         return self.__class__, (self.feature_engineer, self.alpha)             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t get_n_features(self, Dataset td, Py_ssize_t depth) nogil:
 */
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_class); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 139, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = PyFloat_FromDouble(__pyx_v_self->alpha); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 139, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 139, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_INCREF((PyObject *)__pyx_v_self->__pyx_base.feature_engineer);
  __Pyx_GIVEREF((PyObject *)__pyx_v_self->__pyx_base.feature_engineer);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 0, ((PyObject *)__pyx_v_self->__pyx_base.feature_engineer))) __PYX_ERR(0, 139, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_2);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 1, __pyx_t_2)) __PYX_ERR(0, 139, __pyx_L1_error);
  __pyx_t_2 = 0;
  __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 139, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_GIVEREF(__pyx_t_1);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_t_1)) __PYX_ERR(0, 139, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_3);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_3)) __PYX_ERR(0, 139, __pyx_L1_error);
  __pyx_t_1 = 0;
  __pyx_t_3 = 0;
  __pyx_r = __pyx_t_2;
  __pyx_t_2 = 0;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":138
 *         self.alpha = alpha
 * 
 *     def __reduce__(self):             # <<<<<<<<<<<<<<
 *         return self.__class__, (self.feature_engineer, self.alpha)
 * 
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_AddTraceback("wildboar.tree._ctree.DynamicTreeFeatureEngineer.__reduce__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":141
 *         return self.__class__, (self.feature_engineer, self.alpha)
 * 
 *     cdef Py_ssize_t get_n_features(self, Dataset td, Py_ssize_t depth) nogil:             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t n_features = self.feature_engineer.get_n_features(td)
 *         cdef double weight = 1.0 - exp(-fabs(self.alpha) * depth)
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_get_n_features(struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer *__pyx_v_self, struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_td, Py_ssize_t __pyx_v_depth) {
  Py_ssize_t __pyx_v_n_features;
  double __pyx_v_weight;
  Py_ssize_t __pyx_r;
  Py_ssize_t __pyx_t_1;
  int __pyx_t_2;
  double __pyx_t_3;
  long __pyx_t_4;
  double __pyx_t_5;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":142
 * 
 *     cdef Py_ssize_t get_n_features(self, Dataset td, Py_ssize_t depth) nogil:
 *         cdef Py_ssize_t n_features = self.feature_engineer.get_n_features(td)             # <<<<<<<<<<<<<<
 *         cdef double weight = 1.0 - exp(-fabs(self.alpha) * depth)
 *         if self.alpha < 0:
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer *)__pyx_v_self->__pyx_base.feature_engineer->__pyx_vtab)->get_n_features(__pyx_v_self->__pyx_base.feature_engineer, __pyx_v_td); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 142, __pyx_L1_error)
  __pyx_v_n_features = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":143
 *     cdef Py_ssize_t get_n_features(self, Dataset td, Py_ssize_t depth) nogil:
 *         cdef Py_ssize_t n_features = self.feature_engineer.get_n_features(td)
 *         cdef double weight = 1.0 - exp(-fabs(self.alpha) * depth)             # <<<<<<<<<<<<<<
 *         if self.alpha < 0:
 *             weight = 1 - weight
 */
  __pyx_v_weight = (1.0 - exp(((-fabs(__pyx_v_self->alpha)) * __pyx_v_depth)));

  /* "wildboar/tree/_ctree.pyx":144
 *         cdef Py_ssize_t n_features = self.feature_engineer.get_n_features(td)
 *         cdef double weight = 1.0 - exp(-fabs(self.alpha) * depth)
 *         if self.alpha < 0:             # <<<<<<<<<<<<<<
 *             weight = 1 - weight
 * 
 */
  __pyx_t_2 = (__pyx_v_self->alpha < 0.0);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":145
 *         cdef double weight = 1.0 - exp(-fabs(self.alpha) * depth)
 *         if self.alpha < 0:
 *             weight = 1 - weight             # <<<<<<<<<<<<<<
 * 
 *         return <Py_ssize_t> max(1, ceil(n_features * weight))
 */
    __pyx_v_weight = (1.0 - __pyx_v_weight);

    /* "wildboar/tree/_ctree.pyx":144
 *         cdef Py_ssize_t n_features = self.feature_engineer.get_n_features(td)
 *         cdef double weight = 1.0 - exp(-fabs(self.alpha) * depth)
 *         if self.alpha < 0:             # <<<<<<<<<<<<<<
 *             weight = 1 - weight
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":147
 *             weight = 1 - weight
 * 
 *         return <Py_ssize_t> max(1, ceil(n_features * weight))             # <<<<<<<<<<<<<<
 * 
 * 
 */
  __pyx_t_3 = ceil((__pyx_v_n_features * __pyx_v_weight));
  __pyx_t_4 = 1;
  __pyx_t_2 = (__pyx_t_3 > __pyx_t_4);
  if (__pyx_t_2) {
    __pyx_t_5 = __pyx_t_3;
  } else {
    __pyx_t_5 = __pyx_t_4;
  }
  __pyx_r = ((Py_ssize_t)__pyx_t_5);
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":141
 *         return self.__class__, (self.feature_engineer, self.alpha)
 * 
 *     cdef Py_ssize_t get_n_features(self, Dataset td, Py_ssize_t depth) nogil:             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t n_features = self.feature_engineer.get_n_features(td)
 *         cdef double weight = 1.0 - exp(-fabs(self.alpha) * depth)
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.DynamicTreeFeatureEngineer.get_n_features", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":160
 *     cdef double *sample_weight
 * 
 *     cdef void init(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

static void __pyx_f_8wildboar_4tree_6_ctree_9Criterion_init(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t *__pyx_v_samples, double *__pyx_v_sample_weights) {

  /* "wildboar/tree/_ctree.pyx":167
 *         double *sample_weights,
 *     ) nogil:
 *         self.start = start             # <<<<<<<<<<<<<<
 *         self.end = end
 *         self.samples = samples
 */
  __pyx_v_self->start = __pyx_v_start;

  /* "wildboar/tree/_ctree.pyx":168
 *     ) nogil:
 *         self.start = start
 *         self.end = end             # <<<<<<<<<<<<<<
 *         self.samples = samples
 *         self.sample_weight = sample_weights
 */
  __pyx_v_self->end = __pyx_v_end;

  /* "wildboar/tree/_ctree.pyx":169
 *         self.start = start
 *         self.end = end
 *         self.samples = samples             # <<<<<<<<<<<<<<
 *         self.sample_weight = sample_weights
 * 
 */
  __pyx_v_self->samples = __pyx_v_samples;

  /* "wildboar/tree/_ctree.pyx":170
 *         self.end = end
 *         self.samples = samples
 *         self.sample_weight = sample_weights             # <<<<<<<<<<<<<<
 * 
 *     cdef void reset(self) nogil:
 */
  __pyx_v_self->sample_weight = __pyx_v_sample_weights;

  /* "wildboar/tree/_ctree.pyx":160
 *     cdef double *sample_weight
 * 
 *     cdef void init(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

  /* function exit code */
}

/* "wildboar/tree/_ctree.pyx":172
 *         self.sample_weight = sample_weights
 * 
 *     cdef void reset(self) nogil:             # <<<<<<<<<<<<<<
 *         pass
 * 
 */

static void __pyx_f_8wildboar_4tree_6_ctree_9Criterion_reset(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self) {

  /* function exit code */
}

/* "wildboar/tree/_ctree.pyx":175
 *         pass
 * 
 *     cdef void update(self, Py_ssize_t pos, Py_ssize_t new_pos) nogil:             # <<<<<<<<<<<<<<
 *         pass
 * 
 */

static void __pyx_f_8wildboar_4tree_6_ctree_9Criterion_update(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self, CYTHON_UNUSED Py_ssize_t __pyx_v_pos, CYTHON_UNUSED Py_ssize_t __pyx_v_new_pos) {

  /* function exit code */
}

/* "wildboar/tree/_ctree.pyx":178
 *         pass
 * 
 *     cdef double proxy_impurity(self) nogil:             # <<<<<<<<<<<<<<
 *         cdef double left_impurity
 *         cdef double right_impurity
 */

static double __pyx_f_8wildboar_4tree_6_ctree_9Criterion_proxy_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self) {
  double __pyx_v_left_impurity;
  double __pyx_v_right_impurity;
  double __pyx_r;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":181
 *         cdef double left_impurity
 *         cdef double right_impurity
 *         self.child_impurity(&left_impurity, &right_impurity)             # <<<<<<<<<<<<<<
 *         return -self.weighted_n_right * right_impurity - self.weighted_n_left * left_impurity
 * 
 */
  ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self->__pyx_vtab)->child_impurity(__pyx_v_self, (&__pyx_v_left_impurity), (&__pyx_v_right_impurity)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 181, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":182
 *         cdef double right_impurity
 *         self.child_impurity(&left_impurity, &right_impurity)
 *         return -self.weighted_n_right * right_impurity - self.weighted_n_left * left_impurity             # <<<<<<<<<<<<<<
 * 
 *     cdef double impurity(self) nogil:
 */
  __pyx_r = (((-__pyx_v_self->weighted_n_right) * __pyx_v_right_impurity) - (__pyx_v_self->weighted_n_left * __pyx_v_left_impurity));
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":178
 *         pass
 * 
 *     cdef double proxy_impurity(self) nogil:             # <<<<<<<<<<<<<<
 *         cdef double left_impurity
 *         cdef double right_impurity
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.Criterion.proxy_impurity", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":184
 *         return -self.weighted_n_right * right_impurity - self.weighted_n_left * left_impurity
 * 
 *     cdef double impurity(self) nogil:             # <<<<<<<<<<<<<<
 *         pass
 * 
 */

static double __pyx_f_8wildboar_4tree_6_ctree_9Criterion_impurity(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self) {
  double __pyx_r;

  /* function exit code */
  __pyx_r = 0;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":187
 *         pass
 * 
 *     cdef void child_impurity(self, double *left, double *right) nogil:             # <<<<<<<<<<<<<<
 *         pass
 * 
 */

static void __pyx_f_8wildboar_4tree_6_ctree_9Criterion_child_impurity(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self, CYTHON_UNUSED double *__pyx_v_left, CYTHON_UNUSED double *__pyx_v_right) {

  /* function exit code */
}

/* "wildboar/tree/_ctree.pyx":190
 *         pass
 * 
 *     cdef double impurity_improvement(             # <<<<<<<<<<<<<<
 *         self,
 *         double impurity_parent,
 */

static double __pyx_f_8wildboar_4tree_6_ctree_9Criterion_impurity_improvement(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self, double __pyx_v_impurity_parent, double __pyx_v_impurity_left, double __pyx_v_impurity_right, double __pyx_v_weighted_n_samples) {
  double __pyx_r;

  /* "wildboar/tree/_ctree.pyx":197
 *         double weighted_n_samples,
 *     ) nogil:
 *         return ((self.weighted_n_total / weighted_n_samples) *             # <<<<<<<<<<<<<<
 *                 (impurity_parent - (self.weighted_n_right / self.weighted_n_total * impurity_right)
 *                                  - (self.weighted_n_left / self.weighted_n_total * impurity_left)))
 */
  __pyx_r = ((__pyx_v_self->weighted_n_total / __pyx_v_weighted_n_samples) * ((__pyx_v_impurity_parent - ((__pyx_v_self->weighted_n_right / __pyx_v_self->weighted_n_total) * __pyx_v_impurity_right)) - ((__pyx_v_self->weighted_n_left / __pyx_v_self->weighted_n_total) * __pyx_v_impurity_left)));
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":190
 *         pass
 * 
 *     cdef double impurity_improvement(             # <<<<<<<<<<<<<<
 *         self,
 *         double impurity_parent,
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":201
 *                                  - (self.weighted_n_left / self.weighted_n_total * impurity_left)))
 * 
 *     cdef void leaf_value(self, Tree tree, Py_ssize_t node_id) nogil:             # <<<<<<<<<<<<<<
 *         pass
 * 
 */

static void __pyx_f_8wildboar_4tree_6_ctree_9Criterion_leaf_value(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self, CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_tree, CYTHON_UNUSED Py_ssize_t __pyx_v_node_id) {

  /* function exit code */
}

/* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 * def __setstate_cython__(self, __pyx_state):
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_9Criterion_1__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_9Criterion_1__reduce_cython__ = {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_9Criterion_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_9Criterion_1__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__reduce_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  if (unlikely(__pyx_nargs > 0)) {
    __Pyx_RaiseArgtupleInvalid("__reduce_cython__", 1, 0, 0, __pyx_nargs); return NULL;}
  if (unlikely(__pyx_kwds) && __Pyx_NumKwargs_FASTCALL(__pyx_kwds) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__reduce_cython__", 0))) return NULL;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_9Criterion___reduce_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_9Criterion___reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__reduce_cython__", 1);

  /* "(tree fragment)":2
 * def __reduce_cython__(self):
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"             # <<<<<<<<<<<<<<
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_self_sample_weight_self_samples, 0, 0);
  __PYX_ERR(1, 2, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 * def __setstate_cython__(self, __pyx_state):
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.Criterion.__reduce_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_9Criterion_3__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_9Criterion_3__setstate_cython__ = {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_9Criterion_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_9Criterion_3__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  CYTHON_UNUSED PyObject *__pyx_v___pyx_state = 0;
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__setstate_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_pyx_state,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_FASTCALL(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_pyx_state)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(1, 3, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__setstate_cython__") < 0)) __PYX_ERR(1, 3, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
    }
    __pyx_v___pyx_state = values[0];
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__setstate_cython__", 1, 1, 1, __pyx_nargs); __PYX_ERR(1, 3, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.Criterion.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return NULL;
  __pyx_L4_argument_unpacking_done:;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_9Criterion_2__setstate_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self), __pyx_v___pyx_state);

  /* function exit code */
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_9Criterion_2__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__setstate_cython__", 1);

  /* "(tree fragment)":4
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"             # <<<<<<<<<<<<<<
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_self_sample_weight_self_samples, 0, 0);
  __PYX_ERR(1, 4, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.Criterion.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":213
 *     cdef double *sum_total
 * 
 *     def __cinit__(self, np.ndarray y, Py_ssize_t n_labels):             # <<<<<<<<<<<<<<
 *         if y.dtype != np.intp:
 *             raise ValueError("unexpected dtype (%r != %r)" % (y.dtype, np.intp))
 */

/* Python wrapper */
static int __pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
static int __pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
  PyArrayObject *__pyx_v_y = 0;
  Py_ssize_t __pyx_v_n_labels;
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[2] = {0,0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__cinit__ (wrapper)", 0);
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return -1;
  #endif
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_y,&__pyx_n_s_n_labels,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  2: values[1] = __Pyx_Arg_VARARGS(__pyx_args, 1);
        CYTHON_FALLTHROUGH;
        case  1: values[0] = __Pyx_Arg_VARARGS(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_VARARGS(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_y)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 213, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
        CYTHON_FALLTHROUGH;
        case  1:
        if (likely((values[1] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_n_labels)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[1]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 213, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("__cinit__", 1, 2, 2, 1); __PYX_ERR(0, 213, __pyx_L3_error)
        }
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__cinit__") < 0)) __PYX_ERR(0, 213, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 2)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_VARARGS(__pyx_args, 0);
      values[1] = __Pyx_Arg_VARARGS(__pyx_args, 1);
    }
    __pyx_v_y = ((PyArrayObject *)values[0]);
    __pyx_v_n_labels = __Pyx_PyIndex_AsSsize_t(values[1]); if (unlikely((__pyx_v_n_labels == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 213, __pyx_L3_error)
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__cinit__", 1, 2, 2, __pyx_nargs); __PYX_ERR(0, 213, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_VARARGS(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.ClassificationCriterion.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return -1;
  __pyx_L4_argument_unpacking_done:;
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_y), __pyx_ptype_5numpy_ndarray, 1, "y", 0))) __PYX_ERR(0, 213, __pyx_L1_error)
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_23ClassificationCriterion___cinit__(((struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *)__pyx_v_self), __pyx_v_y, __pyx_v_n_labels);

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  __pyx_r = -1;
  __pyx_L0:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_VARARGS(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static int __pyx_pf_8wildboar_4tree_6_ctree_23ClassificationCriterion___cinit__(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self, PyArrayObject *__pyx_v_y, Py_ssize_t __pyx_v_n_labels) {
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  int __pyx_t_4;
  Py_ssize_t __pyx_t_5;
  Py_UCS4 __pyx_t_6;
  int __pyx_t_7;
  char *__pyx_t_8;
  npy_intp *__pyx_t_9;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__cinit__", 1);

  /* "wildboar/tree/_ctree.pyx":214
 * 
 *     def __cinit__(self, np.ndarray y, Py_ssize_t n_labels):
 *         if y.dtype != np.intp:             # <<<<<<<<<<<<<<
 *             raise ValueError("unexpected dtype (%r != %r)" % (y.dtype, np.intp))
 * 
 */
  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_y), __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 214, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __Pyx_GetModuleGlobalName(__pyx_t_2, __pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 214, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_intp); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 214, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __pyx_t_2 = PyObject_RichCompare(__pyx_t_1, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 214, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely((__pyx_t_4 < 0))) __PYX_ERR(0, 214, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  if (unlikely(__pyx_t_4)) {

    /* "wildboar/tree/_ctree.pyx":215
 *     def __cinit__(self, np.ndarray y, Py_ssize_t n_labels):
 *         if y.dtype != np.intp:
 *             raise ValueError("unexpected dtype (%r != %r)" % (y.dtype, np.intp))             # <<<<<<<<<<<<<<
 * 
 *         if y.ndim != 1:
 */
    __pyx_t_2 = PyTuple_New(5); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 215, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_2);
    __pyx_t_5 = 0;
    __pyx_t_6 = 127;
    __Pyx_INCREF(__pyx_kp_u_unexpected_dtype);
    __pyx_t_5 += 18;
    __Pyx_GIVEREF(__pyx_kp_u_unexpected_dtype);
    PyTuple_SET_ITEM(__pyx_t_2, 0, __pyx_kp_u_unexpected_dtype);
    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_y), __pyx_n_s_dtype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 215, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_3);
    __pyx_t_1 = __Pyx_PyObject_FormatSimpleAndDecref(PyObject_Repr(__pyx_t_3), __pyx_empty_unicode); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 215, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_1);
    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
    __pyx_t_6 = (__Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_1) > __pyx_t_6) ? __Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_1) : __pyx_t_6;
    __pyx_t_5 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_1);
    __Pyx_GIVEREF(__pyx_t_1);
    PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_1);
    __pyx_t_1 = 0;
    __Pyx_INCREF(__pyx_kp_u__3);
    __pyx_t_5 += 4;
    __Pyx_GIVEREF(__pyx_kp_u__3);
    PyTuple_SET_ITEM(__pyx_t_2, 2, __pyx_kp_u__3);
    __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 215, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_1);
    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_intp); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 215, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_3);
    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
    __pyx_t_1 = __Pyx_PyObject_FormatSimpleAndDecref(PyObject_Repr(__pyx_t_3), __pyx_empty_unicode); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 215, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_1);
    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
    __pyx_t_6 = (__Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_1) > __pyx_t_6) ? __Pyx_PyUnicode_MAX_CHAR_VALUE(__pyx_t_1) : __pyx_t_6;
    __pyx_t_5 += __Pyx_PyUnicode_GET_LENGTH(__pyx_t_1);
    __Pyx_GIVEREF(__pyx_t_1);
    PyTuple_SET_ITEM(__pyx_t_2, 3, __pyx_t_1);
    __pyx_t_1 = 0;
    __Pyx_INCREF(__pyx_kp_u__4);
    __pyx_t_5 += 1;
    __Pyx_GIVEREF(__pyx_kp_u__4);
    PyTuple_SET_ITEM(__pyx_t_2, 4, __pyx_kp_u__4);
    __pyx_t_1 = __Pyx_PyUnicode_Join(__pyx_t_2, 5, __pyx_t_5, __pyx_t_6); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 215, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_1);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
    __pyx_t_2 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 215, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_2);
    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
    __Pyx_Raise(__pyx_t_2, 0, 0, 0);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
    __PYX_ERR(0, 215, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":214
 * 
 *     def __cinit__(self, np.ndarray y, Py_ssize_t n_labels):
 *         if y.dtype != np.intp:             # <<<<<<<<<<<<<<
 *             raise ValueError("unexpected dtype (%r != %r)" % (y.dtype, np.intp))
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":217
 *             raise ValueError("unexpected dtype (%r != %r)" % (y.dtype, np.intp))
 * 
 *         if y.ndim != 1:             # <<<<<<<<<<<<<<
 *             raise ValueError("unexpected dim (%r != 1)" % y.ndim)
 *         self.labels = <Py_ssize_t*> y.data
 */
  __pyx_t_7 = __pyx_f_5numpy_7ndarray_4ndim_ndim(__pyx_v_y); if (unlikely(__pyx_t_7 == ((int)-1) && PyErr_Occurred())) __PYX_ERR(0, 217, __pyx_L1_error)
  __pyx_t_4 = (__pyx_t_7 != 1);
  if (unlikely(__pyx_t_4)) {

    /* "wildboar/tree/_ctree.pyx":218
 * 
 *         if y.ndim != 1:
 *             raise ValueError("unexpected dim (%r != 1)" % y.ndim)             # <<<<<<<<<<<<<<
 *         self.labels = <Py_ssize_t*> y.data
 *         self.label_stride = <Py_ssize_t> y.strides[0] / <Py_ssize_t> y.itemsize
 */
    __pyx_t_7 = __pyx_f_5numpy_7ndarray_4ndim_ndim(__pyx_v_y); if (unlikely(__pyx_t_7 == ((int)-1) && PyErr_Occurred())) __PYX_ERR(0, 218, __pyx_L1_error)
    __pyx_t_2 = __Pyx_PyInt_From_int(__pyx_t_7); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 218, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_2);
    __pyx_t_1 = PyUnicode_Format(__pyx_kp_u_unexpected_dim_r_1, __pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 218, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_1);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
    __pyx_t_2 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 218, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_2);
    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
    __Pyx_Raise(__pyx_t_2, 0, 0, 0);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
    __PYX_ERR(0, 218, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":217
 *             raise ValueError("unexpected dtype (%r != %r)" % (y.dtype, np.intp))
 * 
 *         if y.ndim != 1:             # <<<<<<<<<<<<<<
 *             raise ValueError("unexpected dim (%r != 1)" % y.ndim)
 *         self.labels = <Py_ssize_t*> y.data
 */
  }

  /* "wildboar/tree/_ctree.pyx":219
 *         if y.ndim != 1:
 *             raise ValueError("unexpected dim (%r != 1)" % y.ndim)
 *         self.labels = <Py_ssize_t*> y.data             # <<<<<<<<<<<<<<
 *         self.label_stride = <Py_ssize_t> y.strides[0] / <Py_ssize_t> y.itemsize
 *         self.n_labels = n_labels
 */
  __pyx_t_8 = __pyx_f_5numpy_7ndarray_4data_data(__pyx_v_y); if (unlikely(__pyx_t_8 == ((char *)NULL) && PyErr_Occurred())) __PYX_ERR(0, 219, __pyx_L1_error)
  __pyx_v_self->labels = ((Py_ssize_t *)__pyx_t_8);

  /* "wildboar/tree/_ctree.pyx":220
 *             raise ValueError("unexpected dim (%r != 1)" % y.ndim)
 *         self.labels = <Py_ssize_t*> y.data
 *         self.label_stride = <Py_ssize_t> y.strides[0] / <Py_ssize_t> y.itemsize             # <<<<<<<<<<<<<<
 *         self.n_labels = n_labels
 *         self.sum_left = <double*> calloc(n_labels, sizeof(double))
 */
  __pyx_t_9 = __pyx_f_5numpy_7ndarray_7strides_strides(__pyx_v_y); if (unlikely(__pyx_t_9 == ((npy_intp *)NULL) && PyErr_Occurred())) __PYX_ERR(0, 220, __pyx_L1_error)
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_y), __pyx_n_s_itemsize); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 220, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __pyx_t_5 = __Pyx_PyIndex_AsSsize_t(__pyx_t_2); if (unlikely((__pyx_t_5 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 220, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __pyx_v_self->label_stride = (((Py_ssize_t)(__pyx_t_9[0])) / ((Py_ssize_t)__pyx_t_5));

  /* "wildboar/tree/_ctree.pyx":221
 *         self.labels = <Py_ssize_t*> y.data
 *         self.label_stride = <Py_ssize_t> y.strides[0] / <Py_ssize_t> y.itemsize
 *         self.n_labels = n_labels             # <<<<<<<<<<<<<<
 *         self.sum_left = <double*> calloc(n_labels, sizeof(double))
 *         self.sum_right = <double*> calloc(n_labels, sizeof(double))
 */
  __pyx_v_self->n_labels = __pyx_v_n_labels;

  /* "wildboar/tree/_ctree.pyx":222
 *         self.label_stride = <Py_ssize_t> y.strides[0] / <Py_ssize_t> y.itemsize
 *         self.n_labels = n_labels
 *         self.sum_left = <double*> calloc(n_labels, sizeof(double))             # <<<<<<<<<<<<<<
 *         self.sum_right = <double*> calloc(n_labels, sizeof(double))
 *         self.sum_total = <double*> calloc(n_labels, sizeof(double))
 */
  __pyx_v_self->sum_left = ((double *)calloc(__pyx_v_n_labels, (sizeof(double))));

  /* "wildboar/tree/_ctree.pyx":223
 *         self.n_labels = n_labels
 *         self.sum_left = <double*> calloc(n_labels, sizeof(double))
 *         self.sum_right = <double*> calloc(n_labels, sizeof(double))             # <<<<<<<<<<<<<<
 *         self.sum_total = <double*> calloc(n_labels, sizeof(double))
 * 
 */
  __pyx_v_self->sum_right = ((double *)calloc(__pyx_v_n_labels, (sizeof(double))));

  /* "wildboar/tree/_ctree.pyx":224
 *         self.sum_left = <double*> calloc(n_labels, sizeof(double))
 *         self.sum_right = <double*> calloc(n_labels, sizeof(double))
 *         self.sum_total = <double*> calloc(n_labels, sizeof(double))             # <<<<<<<<<<<<<<
 * 
 *     def __dealloc__(self):
 */
  __pyx_v_self->sum_total = ((double *)calloc(__pyx_v_n_labels, (sizeof(double))));

  /* "wildboar/tree/_ctree.pyx":213
 *     cdef double *sum_total
 * 
 *     def __cinit__(self, np.ndarray y, Py_ssize_t n_labels):             # <<<<<<<<<<<<<<
 *         if y.dtype != np.intp:
 *             raise ValueError("unexpected dtype (%r != %r)" % (y.dtype, np.intp))
 */

  /* function exit code */
  __pyx_r = 0;
  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_AddTraceback("wildboar.tree._ctree.ClassificationCriterion.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = -1;
  __pyx_L0:;
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":226
 *         self.sum_total = <double*> calloc(n_labels, sizeof(double))
 * 
 *     def __dealloc__(self):             # <<<<<<<<<<<<<<
 *         free(self.sum_total)
 *         free(self.sum_left)
 */

/* Python wrapper */
static void __pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_3__dealloc__(PyObject *__pyx_v_self); /*proto*/
static void __pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_3__dealloc__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__dealloc__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_pf_8wildboar_4tree_6_ctree_23ClassificationCriterion_2__dealloc__(((struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
}

static void __pyx_pf_8wildboar_4tree_6_ctree_23ClassificationCriterion_2__dealloc__(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self) {

  /* "wildboar/tree/_ctree.pyx":227
 * 
 *     def __dealloc__(self):
 *         free(self.sum_total)             # <<<<<<<<<<<<<<
 *         free(self.sum_left)
 *         free(self.sum_right)
 */
  free(__pyx_v_self->sum_total);

  /* "wildboar/tree/_ctree.pyx":228
 *     def __dealloc__(self):
 *         free(self.sum_total)
 *         free(self.sum_left)             # <<<<<<<<<<<<<<
 *         free(self.sum_right)
 * 
 */
  free(__pyx_v_self->sum_left);

  /* "wildboar/tree/_ctree.pyx":229
 *         free(self.sum_total)
 *         free(self.sum_left)
 *         free(self.sum_right)             # <<<<<<<<<<<<<<
 * 
 *     cdef void init(
 */
  free(__pyx_v_self->sum_right);

  /* "wildboar/tree/_ctree.pyx":226
 *         self.sum_total = <double*> calloc(n_labels, sizeof(double))
 * 
 *     def __dealloc__(self):             # <<<<<<<<<<<<<<
 *         free(self.sum_total)
 *         free(self.sum_left)
 */

  /* function exit code */
}

/* "wildboar/tree/_ctree.pyx":231
 *         free(self.sum_right)
 * 
 *     cdef void init(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

static void __pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_init(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t *__pyx_v_samples, double *__pyx_v_sample_weights) {
  Py_ssize_t __pyx_v_i;
  Py_ssize_t __pyx_v_j;
  Py_ssize_t __pyx_v_p;
  double __pyx_v_w;
  Py_ssize_t __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  int __pyx_t_4;
  Py_ssize_t __pyx_t_5;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":238
 *         double *sample_weights,
 *     ) nogil:
 *         Criterion.init(self, start, end, samples, sample_weights)             # <<<<<<<<<<<<<<
 *         self.weighted_n_total = 0
 * 
 */
  __pyx_f_8wildboar_4tree_6_ctree_9Criterion_init(((struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self), __pyx_v_start, __pyx_v_end, __pyx_v_samples, __pyx_v_sample_weights); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 238, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":239
 *     ) nogil:
 *         Criterion.init(self, start, end, samples, sample_weights)
 *         self.weighted_n_total = 0             # <<<<<<<<<<<<<<
 * 
 *         memset(self.sum_total, 0, self.n_labels * sizeof(double))
 */
  __pyx_v_self->__pyx_base.weighted_n_total = 0.0;

  /* "wildboar/tree/_ctree.pyx":241
 *         self.weighted_n_total = 0
 * 
 *         memset(self.sum_total, 0, self.n_labels * sizeof(double))             # <<<<<<<<<<<<<<
 * 
 *         cdef Py_ssize_t i, j, p
 */
  (void)(memset(__pyx_v_self->sum_total, 0, (__pyx_v_self->n_labels * (sizeof(double)))));

  /* "wildboar/tree/_ctree.pyx":244
 * 
 *         cdef Py_ssize_t i, j, p
 *         cdef double w = 1.0             # <<<<<<<<<<<<<<
 *         for i in range(start, end):
 *             j = samples[i]
 */
  __pyx_v_w = 1.0;

  /* "wildboar/tree/_ctree.pyx":245
 *         cdef Py_ssize_t i, j, p
 *         cdef double w = 1.0
 *         for i in range(start, end):             # <<<<<<<<<<<<<<
 *             j = samples[i]
 *             p = j * self.label_stride
 */
  __pyx_t_1 = __pyx_v_end;
  __pyx_t_2 = __pyx_t_1;
  for (__pyx_t_3 = __pyx_v_start; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
    __pyx_v_i = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":246
 *         cdef double w = 1.0
 *         for i in range(start, end):
 *             j = samples[i]             # <<<<<<<<<<<<<<
 *             p = j * self.label_stride
 * 
 */
    __pyx_v_j = (__pyx_v_samples[__pyx_v_i]);

    /* "wildboar/tree/_ctree.pyx":247
 *         for i in range(start, end):
 *             j = samples[i]
 *             p = j * self.label_stride             # <<<<<<<<<<<<<<
 * 
 *             if sample_weights != NULL:
 */
    __pyx_v_p = (__pyx_v_j * __pyx_v_self->label_stride);

    /* "wildboar/tree/_ctree.pyx":249
 *             p = j * self.label_stride
 * 
 *             if sample_weights != NULL:             # <<<<<<<<<<<<<<
 *                 w = sample_weights[j]
 * 
 */
    __pyx_t_4 = (__pyx_v_sample_weights != NULL);
    if (__pyx_t_4) {

      /* "wildboar/tree/_ctree.pyx":250
 * 
 *             if sample_weights != NULL:
 *                 w = sample_weights[j]             # <<<<<<<<<<<<<<
 * 
 *             self.sum_total[self.labels[p]] += w
 */
      __pyx_v_w = (__pyx_v_sample_weights[__pyx_v_j]);

      /* "wildboar/tree/_ctree.pyx":249
 *             p = j * self.label_stride
 * 
 *             if sample_weights != NULL:             # <<<<<<<<<<<<<<
 *                 w = sample_weights[j]
 * 
 */
    }

    /* "wildboar/tree/_ctree.pyx":252
 *                 w = sample_weights[j]
 * 
 *             self.sum_total[self.labels[p]] += w             # <<<<<<<<<<<<<<
 *             self.weighted_n_total += w
 * 
 */
    __pyx_t_5 = (__pyx_v_self->labels[__pyx_v_p]);
    (__pyx_v_self->sum_total[__pyx_t_5]) = ((__pyx_v_self->sum_total[__pyx_t_5]) + __pyx_v_w);

    /* "wildboar/tree/_ctree.pyx":253
 * 
 *             self.sum_total[self.labels[p]] += w
 *             self.weighted_n_total += w             # <<<<<<<<<<<<<<
 * 
 *         self.reset()
 */
    __pyx_v_self->__pyx_base.weighted_n_total = (__pyx_v_self->__pyx_base.weighted_n_total + __pyx_v_w);
  }

  /* "wildboar/tree/_ctree.pyx":255
 *             self.weighted_n_total += w
 * 
 *         self.reset()             # <<<<<<<<<<<<<<
 * 
 *     cdef void reset(self) nogil:
 */
  ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_ClassificationCriterion *)__pyx_v_self->__pyx_base.__pyx_vtab)->__pyx_base.reset(((struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 255, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":231
 *         free(self.sum_right)
 * 
 *     cdef void init(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.ClassificationCriterion.init", __pyx_clineno, __pyx_lineno, __pyx_filename);
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
}

/* "wildboar/tree/_ctree.pyx":257
 *         self.reset()
 * 
 *     cdef void reset(self) nogil:             # <<<<<<<<<<<<<<
 *         self.weighted_n_left = 0
 *         self.weighted_n_right = self.weighted_n_total
 */

static void __pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_reset(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self) {
  double __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":258
 * 
 *     cdef void reset(self) nogil:
 *         self.weighted_n_left = 0             # <<<<<<<<<<<<<<
 *         self.weighted_n_right = self.weighted_n_total
 *         memset(self.sum_left, 0, self.n_labels * sizeof(double))
 */
  __pyx_v_self->__pyx_base.weighted_n_left = 0.0;

  /* "wildboar/tree/_ctree.pyx":259
 *     cdef void reset(self) nogil:
 *         self.weighted_n_left = 0
 *         self.weighted_n_right = self.weighted_n_total             # <<<<<<<<<<<<<<
 *         memset(self.sum_left, 0, self.n_labels * sizeof(double))
 *         memcpy(self.sum_right, self.sum_total, self.n_labels * sizeof(double))
 */
  __pyx_t_1 = __pyx_v_self->__pyx_base.weighted_n_total;
  __pyx_v_self->__pyx_base.weighted_n_right = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":260
 *         self.weighted_n_left = 0
 *         self.weighted_n_right = self.weighted_n_total
 *         memset(self.sum_left, 0, self.n_labels * sizeof(double))             # <<<<<<<<<<<<<<
 *         memcpy(self.sum_right, self.sum_total, self.n_labels * sizeof(double))
 * 
 */
  (void)(memset(__pyx_v_self->sum_left, 0, (__pyx_v_self->n_labels * (sizeof(double)))));

  /* "wildboar/tree/_ctree.pyx":261
 *         self.weighted_n_right = self.weighted_n_total
 *         memset(self.sum_left, 0, self.n_labels * sizeof(double))
 *         memcpy(self.sum_right, self.sum_total, self.n_labels * sizeof(double))             # <<<<<<<<<<<<<<
 * 
 *     cdef void update(self, Py_ssize_t pos, Py_ssize_t new_pos) nogil:
 */
  (void)(memcpy(__pyx_v_self->sum_right, __pyx_v_self->sum_total, (__pyx_v_self->n_labels * (sizeof(double)))));

  /* "wildboar/tree/_ctree.pyx":257
 *         self.reset()
 * 
 *     cdef void reset(self) nogil:             # <<<<<<<<<<<<<<
 *         self.weighted_n_left = 0
 *         self.weighted_n_right = self.weighted_n_total
 */

  /* function exit code */
}

/* "wildboar/tree/_ctree.pyx":263
 *         memcpy(self.sum_right, self.sum_total, self.n_labels * sizeof(double))
 * 
 *     cdef void update(self, Py_ssize_t pos, Py_ssize_t new_pos) nogil:             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i, j, p
 *         cdef double w = 1.0
 */

static void __pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_update(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self, Py_ssize_t __pyx_v_pos, Py_ssize_t __pyx_v_new_pos) {
  Py_ssize_t __pyx_v_i;
  Py_ssize_t __pyx_v_j;
  Py_ssize_t __pyx_v_p;
  double __pyx_v_w;
  Py_ssize_t __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  int __pyx_t_4;
  Py_ssize_t __pyx_t_5;

  /* "wildboar/tree/_ctree.pyx":265
 *     cdef void update(self, Py_ssize_t pos, Py_ssize_t new_pos) nogil:
 *         cdef Py_ssize_t i, j, p
 *         cdef double w = 1.0             # <<<<<<<<<<<<<<
 * 
 *         for i in range(pos, new_pos):
 */
  __pyx_v_w = 1.0;

  /* "wildboar/tree/_ctree.pyx":267
 *         cdef double w = 1.0
 * 
 *         for i in range(pos, new_pos):             # <<<<<<<<<<<<<<
 *             j = self.samples[i]
 *             p = j * self.label_stride
 */
  __pyx_t_1 = __pyx_v_new_pos;
  __pyx_t_2 = __pyx_t_1;
  for (__pyx_t_3 = __pyx_v_pos; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
    __pyx_v_i = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":268
 * 
 *         for i in range(pos, new_pos):
 *             j = self.samples[i]             # <<<<<<<<<<<<<<
 *             p = j * self.label_stride
 * 
 */
    __pyx_v_j = (__pyx_v_self->__pyx_base.samples[__pyx_v_i]);

    /* "wildboar/tree/_ctree.pyx":269
 *         for i in range(pos, new_pos):
 *             j = self.samples[i]
 *             p = j * self.label_stride             # <<<<<<<<<<<<<<
 * 
 *             if self.sample_weight != NULL:
 */
    __pyx_v_p = (__pyx_v_j * __pyx_v_self->label_stride);

    /* "wildboar/tree/_ctree.pyx":271
 *             p = j * self.label_stride
 * 
 *             if self.sample_weight != NULL:             # <<<<<<<<<<<<<<
 *                 w = self.sample_weight[j]
 * 
 */
    __pyx_t_4 = (__pyx_v_self->__pyx_base.sample_weight != NULL);
    if (__pyx_t_4) {

      /* "wildboar/tree/_ctree.pyx":272
 * 
 *             if self.sample_weight != NULL:
 *                 w = self.sample_weight[j]             # <<<<<<<<<<<<<<
 * 
 *             self.sum_left[self.labels[p]] += w
 */
      __pyx_v_w = (__pyx_v_self->__pyx_base.sample_weight[__pyx_v_j]);

      /* "wildboar/tree/_ctree.pyx":271
 *             p = j * self.label_stride
 * 
 *             if self.sample_weight != NULL:             # <<<<<<<<<<<<<<
 *                 w = self.sample_weight[j]
 * 
 */
    }

    /* "wildboar/tree/_ctree.pyx":274
 *                 w = self.sample_weight[j]
 * 
 *             self.sum_left[self.labels[p]] += w             # <<<<<<<<<<<<<<
 *             self.weighted_n_left += w
 * 
 */
    __pyx_t_5 = (__pyx_v_self->labels[__pyx_v_p]);
    (__pyx_v_self->sum_left[__pyx_t_5]) = ((__pyx_v_self->sum_left[__pyx_t_5]) + __pyx_v_w);

    /* "wildboar/tree/_ctree.pyx":275
 * 
 *             self.sum_left[self.labels[p]] += w
 *             self.weighted_n_left += w             # <<<<<<<<<<<<<<
 * 
 *         self.weighted_n_right = self.weighted_n_total - self.weighted_n_left
 */
    __pyx_v_self->__pyx_base.weighted_n_left = (__pyx_v_self->__pyx_base.weighted_n_left + __pyx_v_w);
  }

  /* "wildboar/tree/_ctree.pyx":277
 *             self.weighted_n_left += w
 * 
 *         self.weighted_n_right = self.weighted_n_total - self.weighted_n_left             # <<<<<<<<<<<<<<
 *         for i in range(self.n_labels):
 *             self.sum_right[i] = self.sum_total[i] - self.sum_left[i]
 */
  __pyx_v_self->__pyx_base.weighted_n_right = (__pyx_v_self->__pyx_base.weighted_n_total - __pyx_v_self->__pyx_base.weighted_n_left);

  /* "wildboar/tree/_ctree.pyx":278
 * 
 *         self.weighted_n_right = self.weighted_n_total - self.weighted_n_left
 *         for i in range(self.n_labels):             # <<<<<<<<<<<<<<
 *             self.sum_right[i] = self.sum_total[i] - self.sum_left[i]
 * 
 */
  __pyx_t_1 = __pyx_v_self->n_labels;
  __pyx_t_2 = __pyx_t_1;
  for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
    __pyx_v_i = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":279
 *         self.weighted_n_right = self.weighted_n_total - self.weighted_n_left
 *         for i in range(self.n_labels):
 *             self.sum_right[i] = self.sum_total[i] - self.sum_left[i]             # <<<<<<<<<<<<<<
 * 
 *     cdef double impurity(self) nogil:
 */
    (__pyx_v_self->sum_right[__pyx_v_i]) = ((__pyx_v_self->sum_total[__pyx_v_i]) - (__pyx_v_self->sum_left[__pyx_v_i]));
  }

  /* "wildboar/tree/_ctree.pyx":263
 *         memcpy(self.sum_right, self.sum_total, self.n_labels * sizeof(double))
 * 
 *     cdef void update(self, Py_ssize_t pos, Py_ssize_t new_pos) nogil:             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i, j, p
 *         cdef double w = 1.0
 */

  /* function exit code */
}

/* "wildboar/tree/_ctree.pyx":281
 *             self.sum_right[i] = self.sum_total[i] - self.sum_left[i]
 * 
 *     cdef double impurity(self) nogil:             # <<<<<<<<<<<<<<
 *         pass
 * 
 */

static double __pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_impurity(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self) {
  double __pyx_r;

  /* function exit code */
  __pyx_r = 0;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":284
 *         pass
 * 
 *     cdef void child_impurity(self, double* left, double *right) nogil:             # <<<<<<<<<<<<<<
 *         pass
 * 
 */

static void __pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_child_impurity(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self, CYTHON_UNUSED double *__pyx_v_left, CYTHON_UNUSED double *__pyx_v_right) {

  /* function exit code */
}

/* "wildboar/tree/_ctree.pyx":287
 *         pass
 * 
 *     cdef void leaf_value(self, Tree tree, Py_ssize_t node_id) nogil:             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         cdef double prob
 */

static void __pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_leaf_value(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self, struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_tree, Py_ssize_t __pyx_v_node_id) {
  Py_ssize_t __pyx_v_i;
  double __pyx_v_prob;
  Py_ssize_t __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":290
 *         cdef Py_ssize_t i
 *         cdef double prob
 *         for i in range(self.n_labels):             # <<<<<<<<<<<<<<
 *             prob = self.sum_total[i] / self.weighted_n_total
 *             tree.set_leaf_value(node_id, i, prob)
 */
  __pyx_t_1 = __pyx_v_self->n_labels;
  __pyx_t_2 = __pyx_t_1;
  for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
    __pyx_v_i = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":291
 *         cdef double prob
 *         for i in range(self.n_labels):
 *             prob = self.sum_total[i] / self.weighted_n_total             # <<<<<<<<<<<<<<
 *             tree.set_leaf_value(node_id, i, prob)
 * 
 */
    __pyx_v_prob = ((__pyx_v_self->sum_total[__pyx_v_i]) / __pyx_v_self->__pyx_base.weighted_n_total);

    /* "wildboar/tree/_ctree.pyx":292
 *         for i in range(self.n_labels):
 *             prob = self.sum_total[i] / self.weighted_n_total
 *             tree.set_leaf_value(node_id, i, prob)             # <<<<<<<<<<<<<<
 * 
 * cdef class GiniCriterion(ClassificationCriterion):
 */
    ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Tree *)__pyx_v_tree->__pyx_vtab)->set_leaf_value(__pyx_v_tree, __pyx_v_node_id, __pyx_v_i, __pyx_v_prob); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 292, __pyx_L1_error)
  }

  /* "wildboar/tree/_ctree.pyx":287
 *         pass
 * 
 *     cdef void leaf_value(self, Tree tree, Py_ssize_t node_id) nogil:             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         cdef double prob
 */

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.ClassificationCriterion.leaf_value", __pyx_clineno, __pyx_lineno, __pyx_filename);
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
}

/* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_5__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_23ClassificationCriterion_5__reduce_cython__ = {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_5__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_5__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__reduce_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  if (unlikely(__pyx_nargs > 0)) {
    __Pyx_RaiseArgtupleInvalid("__reduce_cython__", 1, 0, 0, __pyx_nargs); return NULL;}
  if (unlikely(__pyx_kwds) && __Pyx_NumKwargs_FASTCALL(__pyx_kwds) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__reduce_cython__", 0))) return NULL;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_23ClassificationCriterion_4__reduce_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_23ClassificationCriterion_4__reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__reduce_cython__", 1);

  /* "(tree fragment)":2
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 2, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.ClassificationCriterion.__reduce_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_7__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_23ClassificationCriterion_7__setstate_cython__ = {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_7__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_7__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  CYTHON_UNUSED PyObject *__pyx_v___pyx_state = 0;
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__setstate_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_pyx_state,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_FASTCALL(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_pyx_state)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(1, 3, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__setstate_cython__") < 0)) __PYX_ERR(1, 3, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
    }
    __pyx_v___pyx_state = values[0];
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__setstate_cython__", 1, 1, 1, __pyx_nargs); __PYX_ERR(1, 3, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.ClassificationCriterion.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return NULL;
  __pyx_L4_argument_unpacking_done:;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_23ClassificationCriterion_6__setstate_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *)__pyx_v_self), __pyx_v___pyx_state);

  /* function exit code */
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_23ClassificationCriterion_6__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__setstate_cython__", 1);

  /* "(tree fragment)":4
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 4, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.ClassificationCriterion.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":296
 * cdef class GiniCriterion(ClassificationCriterion):
 * 
 *     cdef double impurity(self) nogil:             # <<<<<<<<<<<<<<
 *         cdef double sq_count = 0.0
 *         cdef double c
 */

static double __pyx_f_8wildboar_4tree_6_ctree_13GiniCriterion_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion *__pyx_v_self) {
  double __pyx_v_sq_count;
  double __pyx_v_c;
  Py_ssize_t __pyx_v_i;
  double __pyx_r;
  Py_ssize_t __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;

  /* "wildboar/tree/_ctree.pyx":297
 * 
 *     cdef double impurity(self) nogil:
 *         cdef double sq_count = 0.0             # <<<<<<<<<<<<<<
 *         cdef double c
 *         cdef Py_ssize_t i
 */
  __pyx_v_sq_count = 0.0;

  /* "wildboar/tree/_ctree.pyx":300
 *         cdef double c
 *         cdef Py_ssize_t i
 *         for i in range(self.n_labels):             # <<<<<<<<<<<<<<
 *             c = self.sum_total[i]
 *             sq_count += c * c
 */
  __pyx_t_1 = __pyx_v_self->__pyx_base.n_labels;
  __pyx_t_2 = __pyx_t_1;
  for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
    __pyx_v_i = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":301
 *         cdef Py_ssize_t i
 *         for i in range(self.n_labels):
 *             c = self.sum_total[i]             # <<<<<<<<<<<<<<
 *             sq_count += c * c
 * 
 */
    __pyx_v_c = (__pyx_v_self->__pyx_base.sum_total[__pyx_v_i]);

    /* "wildboar/tree/_ctree.pyx":302
 *         for i in range(self.n_labels):
 *             c = self.sum_total[i]
 *             sq_count += c * c             # <<<<<<<<<<<<<<
 * 
 *         return 1.0 - sq_count / (self.weighted_n_total * self.weighted_n_total)
 */
    __pyx_v_sq_count = (__pyx_v_sq_count + (__pyx_v_c * __pyx_v_c));
  }

  /* "wildboar/tree/_ctree.pyx":304
 *             sq_count += c * c
 * 
 *         return 1.0 - sq_count / (self.weighted_n_total * self.weighted_n_total)             # <<<<<<<<<<<<<<
 * 
 *     cdef void child_impurity(self, double *left, double *right) nogil:
 */
  __pyx_r = (1.0 - (__pyx_v_sq_count / (__pyx_v_self->__pyx_base.__pyx_base.weighted_n_total * __pyx_v_self->__pyx_base.__pyx_base.weighted_n_total)));
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":296
 * cdef class GiniCriterion(ClassificationCriterion):
 * 
 *     cdef double impurity(self) nogil:             # <<<<<<<<<<<<<<
 *         cdef double sq_count = 0.0
 *         cdef double c
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":306
 *         return 1.0 - sq_count / (self.weighted_n_total * self.weighted_n_total)
 * 
 *     cdef void child_impurity(self, double *left, double *right) nogil:             # <<<<<<<<<<<<<<
 *         cdef double sq_left = 0
 *         cdef double sq_right = 0
 */

static void __pyx_f_8wildboar_4tree_6_ctree_13GiniCriterion_child_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion *__pyx_v_self, double *__pyx_v_left, double *__pyx_v_right) {
  double __pyx_v_sq_left;
  double __pyx_v_sq_right;
  double __pyx_v_v;
  Py_ssize_t __pyx_v_i;
  Py_ssize_t __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;

  /* "wildboar/tree/_ctree.pyx":307
 * 
 *     cdef void child_impurity(self, double *left, double *right) nogil:
 *         cdef double sq_left = 0             # <<<<<<<<<<<<<<
 *         cdef double sq_right = 0
 *         cdef double v
 */
  __pyx_v_sq_left = 0.0;

  /* "wildboar/tree/_ctree.pyx":308
 *     cdef void child_impurity(self, double *left, double *right) nogil:
 *         cdef double sq_left = 0
 *         cdef double sq_right = 0             # <<<<<<<<<<<<<<
 *         cdef double v
 *         cdef Py_ssize_t i
 */
  __pyx_v_sq_right = 0.0;

  /* "wildboar/tree/_ctree.pyx":312
 *         cdef Py_ssize_t i
 * 
 *         for i in range(self.n_labels):             # <<<<<<<<<<<<<<
 *             v = self.sum_left[i]
 *             sq_left += v * v
 */
  __pyx_t_1 = __pyx_v_self->__pyx_base.n_labels;
  __pyx_t_2 = __pyx_t_1;
  for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
    __pyx_v_i = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":313
 * 
 *         for i in range(self.n_labels):
 *             v = self.sum_left[i]             # <<<<<<<<<<<<<<
 *             sq_left += v * v
 * 
 */
    __pyx_v_v = (__pyx_v_self->__pyx_base.sum_left[__pyx_v_i]);

    /* "wildboar/tree/_ctree.pyx":314
 *         for i in range(self.n_labels):
 *             v = self.sum_left[i]
 *             sq_left += v * v             # <<<<<<<<<<<<<<
 * 
 *             v = self.sum_right[i]
 */
    __pyx_v_sq_left = (__pyx_v_sq_left + (__pyx_v_v * __pyx_v_v));

    /* "wildboar/tree/_ctree.pyx":316
 *             sq_left += v * v
 * 
 *             v = self.sum_right[i]             # <<<<<<<<<<<<<<
 *             sq_right += v * v
 * 
 */
    __pyx_v_v = (__pyx_v_self->__pyx_base.sum_right[__pyx_v_i]);

    /* "wildboar/tree/_ctree.pyx":317
 * 
 *             v = self.sum_right[i]
 *             sq_right += v * v             # <<<<<<<<<<<<<<
 * 
 *         left[0] = 1 - sq_left / (self.weighted_n_left * self.weighted_n_left)
 */
    __pyx_v_sq_right = (__pyx_v_sq_right + (__pyx_v_v * __pyx_v_v));
  }

  /* "wildboar/tree/_ctree.pyx":319
 *             sq_right += v * v
 * 
 *         left[0] = 1 - sq_left / (self.weighted_n_left * self.weighted_n_left)             # <<<<<<<<<<<<<<
 *         right[0] = 1 - sq_right / (self.weighted_n_right * self.weighted_n_right)
 * 
 */
  (__pyx_v_left[0]) = (1.0 - (__pyx_v_sq_left / (__pyx_v_self->__pyx_base.__pyx_base.weighted_n_left * __pyx_v_self->__pyx_base.__pyx_base.weighted_n_left)));

  /* "wildboar/tree/_ctree.pyx":320
 * 
 *         left[0] = 1 - sq_left / (self.weighted_n_left * self.weighted_n_left)
 *         right[0] = 1 - sq_right / (self.weighted_n_right * self.weighted_n_right)             # <<<<<<<<<<<<<<
 * 
 * cdef class EntropyCriterion(ClassificationCriterion):
 */
  (__pyx_v_right[0]) = (1.0 - (__pyx_v_sq_right / (__pyx_v_self->__pyx_base.__pyx_base.weighted_n_right * __pyx_v_self->__pyx_base.__pyx_base.weighted_n_right)));

  /* "wildboar/tree/_ctree.pyx":306
 *         return 1.0 - sq_count / (self.weighted_n_total * self.weighted_n_total)
 * 
 *     cdef void child_impurity(self, double *left, double *right) nogil:             # <<<<<<<<<<<<<<
 *         cdef double sq_left = 0
 *         cdef double sq_right = 0
 */

  /* function exit code */
}

/* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_13GiniCriterion_1__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_13GiniCriterion_1__reduce_cython__ = {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_13GiniCriterion_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_13GiniCriterion_1__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__reduce_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  if (unlikely(__pyx_nargs > 0)) {
    __Pyx_RaiseArgtupleInvalid("__reduce_cython__", 1, 0, 0, __pyx_nargs); return NULL;}
  if (unlikely(__pyx_kwds) && __Pyx_NumKwargs_FASTCALL(__pyx_kwds) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__reduce_cython__", 0))) return NULL;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_13GiniCriterion___reduce_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_13GiniCriterion___reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__reduce_cython__", 1);

  /* "(tree fragment)":2
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 2, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.GiniCriterion.__reduce_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_13GiniCriterion_3__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_13GiniCriterion_3__setstate_cython__ = {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_13GiniCriterion_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_13GiniCriterion_3__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  CYTHON_UNUSED PyObject *__pyx_v___pyx_state = 0;
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__setstate_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_pyx_state,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_FASTCALL(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_pyx_state)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(1, 3, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__setstate_cython__") < 0)) __PYX_ERR(1, 3, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
    }
    __pyx_v___pyx_state = values[0];
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__setstate_cython__", 1, 1, 1, __pyx_nargs); __PYX_ERR(1, 3, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.GiniCriterion.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return NULL;
  __pyx_L4_argument_unpacking_done:;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_13GiniCriterion_2__setstate_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion *)__pyx_v_self), __pyx_v___pyx_state);

  /* function exit code */
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_13GiniCriterion_2__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__setstate_cython__", 1);

  /* "(tree fragment)":4
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 4, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.GiniCriterion.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":324
 * cdef class EntropyCriterion(ClassificationCriterion):
 * 
 *     cdef double impurity(self) nogil:             # <<<<<<<<<<<<<<
 *         cdef double c
 *         cdef double entropy = 0
 */

static double __pyx_f_8wildboar_4tree_6_ctree_16EntropyCriterion_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion *__pyx_v_self) {
  double __pyx_v_c;
  double __pyx_v_entropy;
  Py_ssize_t __pyx_v_i;
  double __pyx_r;
  Py_ssize_t __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  int __pyx_t_4;

  /* "wildboar/tree/_ctree.pyx":326
 *     cdef double impurity(self) nogil:
 *         cdef double c
 *         cdef double entropy = 0             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         for i in range(self.n_labels):
 */
  __pyx_v_entropy = 0.0;

  /* "wildboar/tree/_ctree.pyx":328
 *         cdef double entropy = 0
 *         cdef Py_ssize_t i
 *         for i in range(self.n_labels):             # <<<<<<<<<<<<<<
 *             c = self.sum_total[i]
 *             if c > 0:
 */
  __pyx_t_1 = __pyx_v_self->__pyx_base.n_labels;
  __pyx_t_2 = __pyx_t_1;
  for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
    __pyx_v_i = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":329
 *         cdef Py_ssize_t i
 *         for i in range(self.n_labels):
 *             c = self.sum_total[i]             # <<<<<<<<<<<<<<
 *             if c > 0:
 *                 c /= self.weighted_n_total
 */
    __pyx_v_c = (__pyx_v_self->__pyx_base.sum_total[__pyx_v_i]);

    /* "wildboar/tree/_ctree.pyx":330
 *         for i in range(self.n_labels):
 *             c = self.sum_total[i]
 *             if c > 0:             # <<<<<<<<<<<<<<
 *                 c /= self.weighted_n_total
 *                 entropy -= c * log2(c)
 */
    __pyx_t_4 = (__pyx_v_c > 0.0);
    if (__pyx_t_4) {

      /* "wildboar/tree/_ctree.pyx":331
 *             c = self.sum_total[i]
 *             if c > 0:
 *                 c /= self.weighted_n_total             # <<<<<<<<<<<<<<
 *                 entropy -= c * log2(c)
 * 
 */
      __pyx_v_c = (__pyx_v_c / __pyx_v_self->__pyx_base.__pyx_base.weighted_n_total);

      /* "wildboar/tree/_ctree.pyx":332
 *             if c > 0:
 *                 c /= self.weighted_n_total
 *                 entropy -= c * log2(c)             # <<<<<<<<<<<<<<
 * 
 *         return entropy
 */
      __pyx_v_entropy = (__pyx_v_entropy - (__pyx_v_c * log2(__pyx_v_c)));

      /* "wildboar/tree/_ctree.pyx":330
 *         for i in range(self.n_labels):
 *             c = self.sum_total[i]
 *             if c > 0:             # <<<<<<<<<<<<<<
 *                 c /= self.weighted_n_total
 *                 entropy -= c * log2(c)
 */
    }
  }

  /* "wildboar/tree/_ctree.pyx":334
 *                 entropy -= c * log2(c)
 * 
 *         return entropy             # <<<<<<<<<<<<<<
 * 
 *     cdef void child_impurity(self, double *left, double *right) nogil:
 */
  __pyx_r = __pyx_v_entropy;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":324
 * cdef class EntropyCriterion(ClassificationCriterion):
 * 
 *     cdef double impurity(self) nogil:             # <<<<<<<<<<<<<<
 *         cdef double c
 *         cdef double entropy = 0
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":336
 *         return entropy
 * 
 *     cdef void child_impurity(self, double *left, double *right) nogil:             # <<<<<<<<<<<<<<
 *         left[0] = 0
 *         right[0] = 0
 */

static void __pyx_f_8wildboar_4tree_6_ctree_16EntropyCriterion_child_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion *__pyx_v_self, double *__pyx_v_left, double *__pyx_v_right) {
  double __pyx_v_v;
  Py_ssize_t __pyx_v_i;
  Py_ssize_t __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  int __pyx_t_4;
  long __pyx_t_5;

  /* "wildboar/tree/_ctree.pyx":337
 * 
 *     cdef void child_impurity(self, double *left, double *right) nogil:
 *         left[0] = 0             # <<<<<<<<<<<<<<
 *         right[0] = 0
 *         cdef double v
 */
  (__pyx_v_left[0]) = 0.0;

  /* "wildboar/tree/_ctree.pyx":338
 *     cdef void child_impurity(self, double *left, double *right) nogil:
 *         left[0] = 0
 *         right[0] = 0             # <<<<<<<<<<<<<<
 *         cdef double v
 *         cdef Py_ssize_t i
 */
  (__pyx_v_right[0]) = 0.0;

  /* "wildboar/tree/_ctree.pyx":342
 *         cdef Py_ssize_t i
 * 
 *         for i in range(self.n_labels):             # <<<<<<<<<<<<<<
 *             v = self.sum_left[i]
 *             if v > 0:
 */
  __pyx_t_1 = __pyx_v_self->__pyx_base.n_labels;
  __pyx_t_2 = __pyx_t_1;
  for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
    __pyx_v_i = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":343
 * 
 *         for i in range(self.n_labels):
 *             v = self.sum_left[i]             # <<<<<<<<<<<<<<
 *             if v > 0:
 *                 v /= self.weighted_n_left
 */
    __pyx_v_v = (__pyx_v_self->__pyx_base.sum_left[__pyx_v_i]);

    /* "wildboar/tree/_ctree.pyx":344
 *         for i in range(self.n_labels):
 *             v = self.sum_left[i]
 *             if v > 0:             # <<<<<<<<<<<<<<
 *                 v /= self.weighted_n_left
 *                 left[0] -= v * log2(v)
 */
    __pyx_t_4 = (__pyx_v_v > 0.0);
    if (__pyx_t_4) {

      /* "wildboar/tree/_ctree.pyx":345
 *             v = self.sum_left[i]
 *             if v > 0:
 *                 v /= self.weighted_n_left             # <<<<<<<<<<<<<<
 *                 left[0] -= v * log2(v)
 * 
 */
      __pyx_v_v = (__pyx_v_v / __pyx_v_self->__pyx_base.__pyx_base.weighted_n_left);

      /* "wildboar/tree/_ctree.pyx":346
 *             if v > 0:
 *                 v /= self.weighted_n_left
 *                 left[0] -= v * log2(v)             # <<<<<<<<<<<<<<
 * 
 *             v = self.sum_right[i]
 */
      __pyx_t_5 = 0;
      (__pyx_v_left[__pyx_t_5]) = ((__pyx_v_left[__pyx_t_5]) - (__pyx_v_v * log2(__pyx_v_v)));

      /* "wildboar/tree/_ctree.pyx":344
 *         for i in range(self.n_labels):
 *             v = self.sum_left[i]
 *             if v > 0:             # <<<<<<<<<<<<<<
 *                 v /= self.weighted_n_left
 *                 left[0] -= v * log2(v)
 */
    }

    /* "wildboar/tree/_ctree.pyx":348
 *                 left[0] -= v * log2(v)
 * 
 *             v = self.sum_right[i]             # <<<<<<<<<<<<<<
 *             if v > 0:
 *                 v /= self.weighted_n_right
 */
    __pyx_v_v = (__pyx_v_self->__pyx_base.sum_right[__pyx_v_i]);

    /* "wildboar/tree/_ctree.pyx":349
 * 
 *             v = self.sum_right[i]
 *             if v > 0:             # <<<<<<<<<<<<<<
 *                 v /= self.weighted_n_right
 *                 right[0] -= v * log2(v)
 */
    __pyx_t_4 = (__pyx_v_v > 0.0);
    if (__pyx_t_4) {

      /* "wildboar/tree/_ctree.pyx":350
 *             v = self.sum_right[i]
 *             if v > 0:
 *                 v /= self.weighted_n_right             # <<<<<<<<<<<<<<
 *                 right[0] -= v * log2(v)
 * 
 */
      __pyx_v_v = (__pyx_v_v / __pyx_v_self->__pyx_base.__pyx_base.weighted_n_right);

      /* "wildboar/tree/_ctree.pyx":351
 *             if v > 0:
 *                 v /= self.weighted_n_right
 *                 right[0] -= v * log2(v)             # <<<<<<<<<<<<<<
 * 
 * cdef class RegressionCriterion(Criterion):
 */
      __pyx_t_5 = 0;
      (__pyx_v_right[__pyx_t_5]) = ((__pyx_v_right[__pyx_t_5]) - (__pyx_v_v * log2(__pyx_v_v)));

      /* "wildboar/tree/_ctree.pyx":349
 * 
 *             v = self.sum_right[i]
 *             if v > 0:             # <<<<<<<<<<<<<<
 *                 v /= self.weighted_n_right
 *                 right[0] -= v * log2(v)
 */
    }
  }

  /* "wildboar/tree/_ctree.pyx":336
 *         return entropy
 * 
 *     cdef void child_impurity(self, double *left, double *right) nogil:             # <<<<<<<<<<<<<<
 *         left[0] = 0
 *         right[0] = 0
 */

  /* function exit code */
}

/* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_16EntropyCriterion_1__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_16EntropyCriterion_1__reduce_cython__ = {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_16EntropyCriterion_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_16EntropyCriterion_1__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__reduce_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  if (unlikely(__pyx_nargs > 0)) {
    __Pyx_RaiseArgtupleInvalid("__reduce_cython__", 1, 0, 0, __pyx_nargs); return NULL;}
  if (unlikely(__pyx_kwds) && __Pyx_NumKwargs_FASTCALL(__pyx_kwds) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__reduce_cython__", 0))) return NULL;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_16EntropyCriterion___reduce_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_16EntropyCriterion___reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__reduce_cython__", 1);

  /* "(tree fragment)":2
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 2, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.EntropyCriterion.__reduce_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_16EntropyCriterion_3__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_16EntropyCriterion_3__setstate_cython__ = {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_16EntropyCriterion_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_16EntropyCriterion_3__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  CYTHON_UNUSED PyObject *__pyx_v___pyx_state = 0;
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__setstate_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_pyx_state,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_FASTCALL(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_pyx_state)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(1, 3, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__setstate_cython__") < 0)) __PYX_ERR(1, 3, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
    }
    __pyx_v___pyx_state = values[0];
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__setstate_cython__", 1, 1, 1, __pyx_nargs); __PYX_ERR(1, 3, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.EntropyCriterion.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return NULL;
  __pyx_L4_argument_unpacking_done:;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_16EntropyCriterion_2__setstate_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion *)__pyx_v_self), __pyx_v___pyx_state);

  /* function exit code */
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_16EntropyCriterion_2__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__setstate_cython__", 1);

  /* "(tree fragment)":4
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 4, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.EntropyCriterion.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":362
 *     cdef Py_ssize_t pos
 * 
 *     def __cinit__(self, np.ndarray y):             # <<<<<<<<<<<<<<
 *         if y.dtype != np.double:
 *             raise ValueError("unexpected dtype (%r != np.double)" % y.dtype)
 */

/* Python wrapper */
static int __pyx_pw_8wildboar_4tree_6_ctree_19RegressionCriterion_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
static int __pyx_pw_8wildboar_4tree_6_ctree_19RegressionCriterion_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
  PyArrayObject *__pyx_v_y = 0;
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__cinit__ (wrapper)", 0);
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return -1;
  #endif
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_y,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_VARARGS(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_VARARGS(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_y)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 362, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__cinit__") < 0)) __PYX_ERR(0, 362, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_VARARGS(__pyx_args, 0);
    }
    __pyx_v_y = ((PyArrayObject *)values[0]);
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__cinit__", 1, 1, 1, __pyx_nargs); __PYX_ERR(0, 362, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_VARARGS(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.RegressionCriterion.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return -1;
  __pyx_L4_argument_unpacking_done:;
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_y), __pyx_ptype_5numpy_ndarray, 1, "y", 0))) __PYX_ERR(0, 362, __pyx_L1_error)
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_19RegressionCriterion___cinit__(((struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *)__pyx_v_self), __pyx_v_y);

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  __pyx_r = -1;
  __pyx_L0:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_VARARGS(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static int __pyx_pf_8wildboar_4tree_6_ctree_19RegressionCriterion___cinit__(struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self, PyArrayObject *__pyx_v_y) {
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  int __pyx_t_4;
  int __pyx_t_5;
  npy_intp *__pyx_t_6;
  Py_ssize_t __pyx_t_7;
  char *__pyx_t_8;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__cinit__", 1);

  /* "wildboar/tree/_ctree.pyx":363
 * 
 *     def __cinit__(self, np.ndarray y):
 *         if y.dtype != np.double:             # <<<<<<<<<<<<<<
 *             raise ValueError("unexpected dtype (%r != np.double)" % y.dtype)
 * 
 */
  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_y), __pyx_n_s_dtype); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 363, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __Pyx_GetModuleGlobalName(__pyx_t_2, __pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 363, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __pyx_t_3 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_double); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 363, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __pyx_t_2 = PyObject_RichCompare(__pyx_t_1, __pyx_t_3, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 363, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __pyx_t_4 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely((__pyx_t_4 < 0))) __PYX_ERR(0, 363, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  if (unlikely(__pyx_t_4)) {

    /* "wildboar/tree/_ctree.pyx":364
 *     def __cinit__(self, np.ndarray y):
 *         if y.dtype != np.double:
 *             raise ValueError("unexpected dtype (%r != np.double)" % y.dtype)             # <<<<<<<<<<<<<<
 * 
 *         if y.ndim != 1:
 */
    __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_y), __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 364, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_2);
    __pyx_t_3 = __Pyx_PyUnicode_FormatSafe(__pyx_kp_u_unexpected_dtype_r_np_double, __pyx_t_2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 364, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_3);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
    __pyx_t_2 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_3); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 364, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_2);
    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
    __Pyx_Raise(__pyx_t_2, 0, 0, 0);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
    __PYX_ERR(0, 364, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":363
 * 
 *     def __cinit__(self, np.ndarray y):
 *         if y.dtype != np.double:             # <<<<<<<<<<<<<<
 *             raise ValueError("unexpected dtype (%r != np.double)" % y.dtype)
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":366
 *             raise ValueError("unexpected dtype (%r != np.double)" % y.dtype)
 * 
 *         if y.ndim != 1:             # <<<<<<<<<<<<<<
 *             raise ValueError("unexpected dim (%r != 1)" % y.ndim)
 * 
 */
  __pyx_t_5 = __pyx_f_5numpy_7ndarray_4ndim_ndim(__pyx_v_y); if (unlikely(__pyx_t_5 == ((int)-1) && PyErr_Occurred())) __PYX_ERR(0, 366, __pyx_L1_error)
  __pyx_t_4 = (__pyx_t_5 != 1);
  if (unlikely(__pyx_t_4)) {

    /* "wildboar/tree/_ctree.pyx":367
 * 
 *         if y.ndim != 1:
 *             raise ValueError("unexpected dim (%r != 1)" % y.ndim)             # <<<<<<<<<<<<<<
 * 
 *         self.label_stride = <Py_ssize_t> y.strides[0] / <Py_ssize_t> y.itemsize
 */
    __pyx_t_5 = __pyx_f_5numpy_7ndarray_4ndim_ndim(__pyx_v_y); if (unlikely(__pyx_t_5 == ((int)-1) && PyErr_Occurred())) __PYX_ERR(0, 367, __pyx_L1_error)
    __pyx_t_2 = __Pyx_PyInt_From_int(__pyx_t_5); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 367, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_2);
    __pyx_t_3 = PyUnicode_Format(__pyx_kp_u_unexpected_dim_r_1, __pyx_t_2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 367, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_3);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
    __pyx_t_2 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_3); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 367, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_2);
    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
    __Pyx_Raise(__pyx_t_2, 0, 0, 0);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
    __PYX_ERR(0, 367, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":366
 *             raise ValueError("unexpected dtype (%r != np.double)" % y.dtype)
 * 
 *         if y.ndim != 1:             # <<<<<<<<<<<<<<
 *             raise ValueError("unexpected dim (%r != 1)" % y.ndim)
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":369
 *             raise ValueError("unexpected dim (%r != 1)" % y.ndim)
 * 
 *         self.label_stride = <Py_ssize_t> y.strides[0] / <Py_ssize_t> y.itemsize             # <<<<<<<<<<<<<<
 *         self.labels = <double*> y.data
 * 
 */
  __pyx_t_6 = __pyx_f_5numpy_7ndarray_7strides_strides(__pyx_v_y); if (unlikely(__pyx_t_6 == ((npy_intp *)NULL) && PyErr_Occurred())) __PYX_ERR(0, 369, __pyx_L1_error)
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_y), __pyx_n_s_itemsize); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 369, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __pyx_t_7 = __Pyx_PyIndex_AsSsize_t(__pyx_t_2); if (unlikely((__pyx_t_7 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 369, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __pyx_v_self->label_stride = (((Py_ssize_t)(__pyx_t_6[0])) / ((Py_ssize_t)__pyx_t_7));

  /* "wildboar/tree/_ctree.pyx":370
 * 
 *         self.label_stride = <Py_ssize_t> y.strides[0] / <Py_ssize_t> y.itemsize
 *         self.labels = <double*> y.data             # <<<<<<<<<<<<<<
 * 
 *         self.sum_left = 0
 */
  __pyx_t_8 = __pyx_f_5numpy_7ndarray_4data_data(__pyx_v_y); if (unlikely(__pyx_t_8 == ((char *)NULL) && PyErr_Occurred())) __PYX_ERR(0, 370, __pyx_L1_error)
  __pyx_v_self->labels = ((double *)__pyx_t_8);

  /* "wildboar/tree/_ctree.pyx":372
 *         self.labels = <double*> y.data
 * 
 *         self.sum_left = 0             # <<<<<<<<<<<<<<
 *         self.sum_right = 0
 *         self.sum_total = 0
 */
  __pyx_v_self->sum_left = 0.0;

  /* "wildboar/tree/_ctree.pyx":373
 * 
 *         self.sum_left = 0
 *         self.sum_right = 0             # <<<<<<<<<<<<<<
 *         self.sum_total = 0
 *         self.sum_sq_total = 0
 */
  __pyx_v_self->sum_right = 0.0;

  /* "wildboar/tree/_ctree.pyx":374
 *         self.sum_left = 0
 *         self.sum_right = 0
 *         self.sum_total = 0             # <<<<<<<<<<<<<<
 *         self.sum_sq_total = 0
 * 
 */
  __pyx_v_self->sum_total = 0.0;

  /* "wildboar/tree/_ctree.pyx":375
 *         self.sum_right = 0
 *         self.sum_total = 0
 *         self.sum_sq_total = 0             # <<<<<<<<<<<<<<
 * 
 *     cdef void init(
 */
  __pyx_v_self->sum_sq_total = 0.0;

  /* "wildboar/tree/_ctree.pyx":362
 *     cdef Py_ssize_t pos
 * 
 *     def __cinit__(self, np.ndarray y):             # <<<<<<<<<<<<<<
 *         if y.dtype != np.double:
 *             raise ValueError("unexpected dtype (%r != np.double)" % y.dtype)
 */

  /* function exit code */
  __pyx_r = 0;
  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_AddTraceback("wildboar.tree._ctree.RegressionCriterion.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = -1;
  __pyx_L0:;
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":377
 *         self.sum_sq_total = 0
 * 
 *     cdef void init(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

static void __pyx_f_8wildboar_4tree_6_ctree_19RegressionCriterion_init(struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t *__pyx_v_samples, double *__pyx_v_sample_weights) {
  Py_ssize_t __pyx_v_i;
  Py_ssize_t __pyx_v_j;
  Py_ssize_t __pyx_v_p;
  double __pyx_v_x;
  double __pyx_v_w;
  Py_ssize_t __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  int __pyx_t_4;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":384
 *         double *sample_weights,
 *     ) nogil:
 *         Criterion.init(self, start, end, samples, sample_weights)             # <<<<<<<<<<<<<<
 *         self.sum_total = 0
 *         self.sum_sq_total = 0
 */
  __pyx_f_8wildboar_4tree_6_ctree_9Criterion_init(((struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self), __pyx_v_start, __pyx_v_end, __pyx_v_samples, __pyx_v_sample_weights); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 384, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":385
 *     ) nogil:
 *         Criterion.init(self, start, end, samples, sample_weights)
 *         self.sum_total = 0             # <<<<<<<<<<<<<<
 *         self.sum_sq_total = 0
 *         self.weighted_n_total = 0
 */
  __pyx_v_self->sum_total = 0.0;

  /* "wildboar/tree/_ctree.pyx":386
 *         Criterion.init(self, start, end, samples, sample_weights)
 *         self.sum_total = 0
 *         self.sum_sq_total = 0             # <<<<<<<<<<<<<<
 *         self.weighted_n_total = 0
 * 
 */
  __pyx_v_self->sum_sq_total = 0.0;

  /* "wildboar/tree/_ctree.pyx":387
 *         self.sum_total = 0
 *         self.sum_sq_total = 0
 *         self.weighted_n_total = 0             # <<<<<<<<<<<<<<
 * 
 *         cdef Py_ssize_t i, j, p
 */
  __pyx_v_self->__pyx_base.weighted_n_total = 0.0;

  /* "wildboar/tree/_ctree.pyx":391
 *         cdef Py_ssize_t i, j, p
 *         cdef double x
 *         cdef double w = 1.0             # <<<<<<<<<<<<<<
 * 
 *         for i in range(start, end):
 */
  __pyx_v_w = 1.0;

  /* "wildboar/tree/_ctree.pyx":393
 *         cdef double w = 1.0
 * 
 *         for i in range(start, end):             # <<<<<<<<<<<<<<
 *             j = samples[i]
 *             p = j * self.label_stride
 */
  __pyx_t_1 = __pyx_v_end;
  __pyx_t_2 = __pyx_t_1;
  for (__pyx_t_3 = __pyx_v_start; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
    __pyx_v_i = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":394
 * 
 *         for i in range(start, end):
 *             j = samples[i]             # <<<<<<<<<<<<<<
 *             p = j * self.label_stride
 *             if sample_weights != NULL:
 */
    __pyx_v_j = (__pyx_v_samples[__pyx_v_i]);

    /* "wildboar/tree/_ctree.pyx":395
 *         for i in range(start, end):
 *             j = samples[i]
 *             p = j * self.label_stride             # <<<<<<<<<<<<<<
 *             if sample_weights != NULL:
 *                 w = sample_weights[j]
 */
    __pyx_v_p = (__pyx_v_j * __pyx_v_self->label_stride);

    /* "wildboar/tree/_ctree.pyx":396
 *             j = samples[i]
 *             p = j * self.label_stride
 *             if sample_weights != NULL:             # <<<<<<<<<<<<<<
 *                 w = sample_weights[j]
 * 
 */
    __pyx_t_4 = (__pyx_v_sample_weights != NULL);
    if (__pyx_t_4) {

      /* "wildboar/tree/_ctree.pyx":397
 *             p = j * self.label_stride
 *             if sample_weights != NULL:
 *                 w = sample_weights[j]             # <<<<<<<<<<<<<<
 * 
 *             x = w * self.labels[p]
 */
      __pyx_v_w = (__pyx_v_sample_weights[__pyx_v_j]);

      /* "wildboar/tree/_ctree.pyx":396
 *             j = samples[i]
 *             p = j * self.label_stride
 *             if sample_weights != NULL:             # <<<<<<<<<<<<<<
 *                 w = sample_weights[j]
 * 
 */
    }

    /* "wildboar/tree/_ctree.pyx":399
 *                 w = sample_weights[j]
 * 
 *             x = w * self.labels[p]             # <<<<<<<<<<<<<<
 *             self.sum_total += x
 *             self.sum_sq_total += x * x
 */
    __pyx_v_x = (__pyx_v_w * (__pyx_v_self->labels[__pyx_v_p]));

    /* "wildboar/tree/_ctree.pyx":400
 * 
 *             x = w * self.labels[p]
 *             self.sum_total += x             # <<<<<<<<<<<<<<
 *             self.sum_sq_total += x * x
 *             self.weighted_n_total += w
 */
    __pyx_v_self->sum_total = (__pyx_v_self->sum_total + __pyx_v_x);

    /* "wildboar/tree/_ctree.pyx":401
 *             x = w * self.labels[p]
 *             self.sum_total += x
 *             self.sum_sq_total += x * x             # <<<<<<<<<<<<<<
 *             self.weighted_n_total += w
 * 
 */
    __pyx_v_self->sum_sq_total = (__pyx_v_self->sum_sq_total + (__pyx_v_x * __pyx_v_x));

    /* "wildboar/tree/_ctree.pyx":402
 *             self.sum_total += x
 *             self.sum_sq_total += x * x
 *             self.weighted_n_total += w             # <<<<<<<<<<<<<<
 * 
 *         self.reset()
 */
    __pyx_v_self->__pyx_base.weighted_n_total = (__pyx_v_self->__pyx_base.weighted_n_total + __pyx_v_w);
  }

  /* "wildboar/tree/_ctree.pyx":404
 *             self.weighted_n_total += w
 * 
 *         self.reset()             # <<<<<<<<<<<<<<
 *         self.start = start
 * 
 */
  ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_RegressionCriterion *)__pyx_v_self->__pyx_base.__pyx_vtab)->__pyx_base.reset(((struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 404, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":405
 * 
 *         self.reset()
 *         self.start = start             # <<<<<<<<<<<<<<
 * 
 *     cdef void reset(self) nogil:
 */
  __pyx_v_self->__pyx_base.start = __pyx_v_start;

  /* "wildboar/tree/_ctree.pyx":377
 *         self.sum_sq_total = 0
 * 
 *     cdef void init(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.RegressionCriterion.init", __pyx_clineno, __pyx_lineno, __pyx_filename);
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
}

/* "wildboar/tree/_ctree.pyx":407
 *         self.start = start
 * 
 *     cdef void reset(self) nogil:             # <<<<<<<<<<<<<<
 *         self.weighted_n_left = 0
 *         self.weighted_n_right = self.weighted_n_total
 */

static void __pyx_f_8wildboar_4tree_6_ctree_19RegressionCriterion_reset(struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self) {
  double __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":408
 * 
 *     cdef void reset(self) nogil:
 *         self.weighted_n_left = 0             # <<<<<<<<<<<<<<
 *         self.weighted_n_right = self.weighted_n_total
 *         self.sum_left = 0
 */
  __pyx_v_self->__pyx_base.weighted_n_left = 0.0;

  /* "wildboar/tree/_ctree.pyx":409
 *     cdef void reset(self) nogil:
 *         self.weighted_n_left = 0
 *         self.weighted_n_right = self.weighted_n_total             # <<<<<<<<<<<<<<
 *         self.sum_left = 0
 *         self.sum_right = self.sum_total
 */
  __pyx_t_1 = __pyx_v_self->__pyx_base.weighted_n_total;
  __pyx_v_self->__pyx_base.weighted_n_right = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":410
 *         self.weighted_n_left = 0
 *         self.weighted_n_right = self.weighted_n_total
 *         self.sum_left = 0             # <<<<<<<<<<<<<<
 *         self.sum_right = self.sum_total
 *         self.pos = 0
 */
  __pyx_v_self->sum_left = 0.0;

  /* "wildboar/tree/_ctree.pyx":411
 *         self.weighted_n_right = self.weighted_n_total
 *         self.sum_left = 0
 *         self.sum_right = self.sum_total             # <<<<<<<<<<<<<<
 *         self.pos = 0
 * 
 */
  __pyx_t_1 = __pyx_v_self->sum_total;
  __pyx_v_self->sum_right = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":412
 *         self.sum_left = 0
 *         self.sum_right = self.sum_total
 *         self.pos = 0             # <<<<<<<<<<<<<<
 * 
 *     cdef void update(self, Py_ssize_t pos, Py_ssize_t new_pos) nogil:
 */
  __pyx_v_self->pos = 0;

  /* "wildboar/tree/_ctree.pyx":407
 *         self.start = start
 * 
 *     cdef void reset(self) nogil:             # <<<<<<<<<<<<<<
 *         self.weighted_n_left = 0
 *         self.weighted_n_right = self.weighted_n_total
 */

  /* function exit code */
}

/* "wildboar/tree/_ctree.pyx":414
 *         self.pos = 0
 * 
 *     cdef void update(self, Py_ssize_t pos, Py_ssize_t new_pos) nogil:             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         cdef Py_ssize_t j
 */

static void __pyx_f_8wildboar_4tree_6_ctree_19RegressionCriterion_update(struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self, Py_ssize_t __pyx_v_pos, Py_ssize_t __pyx_v_new_pos) {
  Py_ssize_t __pyx_v_i;
  Py_ssize_t __pyx_v_j;
  Py_ssize_t __pyx_v_p;
  double __pyx_v_w;
  Py_ssize_t __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  int __pyx_t_4;

  /* "wildboar/tree/_ctree.pyx":418
 *         cdef Py_ssize_t j
 *         cdef Py_ssize_t p
 *         cdef double w = 1.0             # <<<<<<<<<<<<<<
 *         for i in range(pos, new_pos):
 *             j = self.samples[i]
 */
  __pyx_v_w = 1.0;

  /* "wildboar/tree/_ctree.pyx":419
 *         cdef Py_ssize_t p
 *         cdef double w = 1.0
 *         for i in range(pos, new_pos):             # <<<<<<<<<<<<<<
 *             j = self.samples[i]
 *             p = j * self.label_stride
 */
  __pyx_t_1 = __pyx_v_new_pos;
  __pyx_t_2 = __pyx_t_1;
  for (__pyx_t_3 = __pyx_v_pos; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
    __pyx_v_i = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":420
 *         cdef double w = 1.0
 *         for i in range(pos, new_pos):
 *             j = self.samples[i]             # <<<<<<<<<<<<<<
 *             p = j * self.label_stride
 * 
 */
    __pyx_v_j = (__pyx_v_self->__pyx_base.samples[__pyx_v_i]);

    /* "wildboar/tree/_ctree.pyx":421
 *         for i in range(pos, new_pos):
 *             j = self.samples[i]
 *             p = j * self.label_stride             # <<<<<<<<<<<<<<
 * 
 *             if self.sample_weight != NULL:
 */
    __pyx_v_p = (__pyx_v_j * __pyx_v_self->label_stride);

    /* "wildboar/tree/_ctree.pyx":423
 *             p = j * self.label_stride
 * 
 *             if self.sample_weight != NULL:             # <<<<<<<<<<<<<<
 *                 w = self.sample_weight[j]
 * 
 */
    __pyx_t_4 = (__pyx_v_self->__pyx_base.sample_weight != NULL);
    if (__pyx_t_4) {

      /* "wildboar/tree/_ctree.pyx":424
 * 
 *             if self.sample_weight != NULL:
 *                 w = self.sample_weight[j]             # <<<<<<<<<<<<<<
 * 
 *             self.sum_left += w * self.labels[p]
 */
      __pyx_v_w = (__pyx_v_self->__pyx_base.sample_weight[__pyx_v_j]);

      /* "wildboar/tree/_ctree.pyx":423
 *             p = j * self.label_stride
 * 
 *             if self.sample_weight != NULL:             # <<<<<<<<<<<<<<
 *                 w = self.sample_weight[j]
 * 
 */
    }

    /* "wildboar/tree/_ctree.pyx":426
 *                 w = self.sample_weight[j]
 * 
 *             self.sum_left += w * self.labels[p]             # <<<<<<<<<<<<<<
 *             self.weighted_n_left += w
 * 
 */
    __pyx_v_self->sum_left = (__pyx_v_self->sum_left + (__pyx_v_w * (__pyx_v_self->labels[__pyx_v_p])));

    /* "wildboar/tree/_ctree.pyx":427
 * 
 *             self.sum_left += w * self.labels[p]
 *             self.weighted_n_left += w             # <<<<<<<<<<<<<<
 * 
 *         self.weighted_n_right = self.weighted_n_total - self.weighted_n_left
 */
    __pyx_v_self->__pyx_base.weighted_n_left = (__pyx_v_self->__pyx_base.weighted_n_left + __pyx_v_w);
  }

  /* "wildboar/tree/_ctree.pyx":429
 *             self.weighted_n_left += w
 * 
 *         self.weighted_n_right = self.weighted_n_total - self.weighted_n_left             # <<<<<<<<<<<<<<
 *         self.sum_right = self.sum_total - self.sum_left
 *         self.pos = new_pos
 */
  __pyx_v_self->__pyx_base.weighted_n_right = (__pyx_v_self->__pyx_base.weighted_n_total - __pyx_v_self->__pyx_base.weighted_n_left);

  /* "wildboar/tree/_ctree.pyx":430
 * 
 *         self.weighted_n_right = self.weighted_n_total - self.weighted_n_left
 *         self.sum_right = self.sum_total - self.sum_left             # <<<<<<<<<<<<<<
 *         self.pos = new_pos
 * 
 */
  __pyx_v_self->sum_right = (__pyx_v_self->sum_total - __pyx_v_self->sum_left);

  /* "wildboar/tree/_ctree.pyx":431
 *         self.weighted_n_right = self.weighted_n_total - self.weighted_n_left
 *         self.sum_right = self.sum_total - self.sum_left
 *         self.pos = new_pos             # <<<<<<<<<<<<<<
 * 
 *     cdef void leaf_value(self, Tree tree, Py_ssize_t node_id) nogil:
 */
  __pyx_v_self->pos = __pyx_v_new_pos;

  /* "wildboar/tree/_ctree.pyx":414
 *         self.pos = 0
 * 
 *     cdef void update(self, Py_ssize_t pos, Py_ssize_t new_pos) nogil:             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         cdef Py_ssize_t j
 */

  /* function exit code */
}

/* "wildboar/tree/_ctree.pyx":433
 *         self.pos = new_pos
 * 
 *     cdef void leaf_value(self, Tree tree, Py_ssize_t node_id) nogil:             # <<<<<<<<<<<<<<
 *         tree.set_leaf_value(node_id, 0, self.sum_total / self.weighted_n_total)
 * 
 */

static void __pyx_f_8wildboar_4tree_6_ctree_19RegressionCriterion_leaf_value(struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self, struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_tree, Py_ssize_t __pyx_v_node_id) {
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":434
 * 
 *     cdef void leaf_value(self, Tree tree, Py_ssize_t node_id) nogil:
 *         tree.set_leaf_value(node_id, 0, self.sum_total / self.weighted_n_total)             # <<<<<<<<<<<<<<
 * 
 * cdef class MSECriterion(RegressionCriterion):
 */
  ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Tree *)__pyx_v_tree->__pyx_vtab)->set_leaf_value(__pyx_v_tree, __pyx_v_node_id, 0, (__pyx_v_self->sum_total / __pyx_v_self->__pyx_base.weighted_n_total)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 434, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":433
 *         self.pos = new_pos
 * 
 *     cdef void leaf_value(self, Tree tree, Py_ssize_t node_id) nogil:             # <<<<<<<<<<<<<<
 *         tree.set_leaf_value(node_id, 0, self.sum_total / self.weighted_n_total)
 * 
 */

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.RegressionCriterion.leaf_value", __pyx_clineno, __pyx_lineno, __pyx_filename);
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
}

/* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_19RegressionCriterion_3__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_19RegressionCriterion_3__reduce_cython__ = {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_19RegressionCriterion_3__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_19RegressionCriterion_3__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__reduce_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  if (unlikely(__pyx_nargs > 0)) {
    __Pyx_RaiseArgtupleInvalid("__reduce_cython__", 1, 0, 0, __pyx_nargs); return NULL;}
  if (unlikely(__pyx_kwds) && __Pyx_NumKwargs_FASTCALL(__pyx_kwds) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__reduce_cython__", 0))) return NULL;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_19RegressionCriterion_2__reduce_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_19RegressionCriterion_2__reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__reduce_cython__", 1);

  /* "(tree fragment)":2
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 2, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.RegressionCriterion.__reduce_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_19RegressionCriterion_5__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_19RegressionCriterion_5__setstate_cython__ = {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_19RegressionCriterion_5__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_19RegressionCriterion_5__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  CYTHON_UNUSED PyObject *__pyx_v___pyx_state = 0;
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__setstate_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_pyx_state,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_FASTCALL(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_pyx_state)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(1, 3, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__setstate_cython__") < 0)) __PYX_ERR(1, 3, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
    }
    __pyx_v___pyx_state = values[0];
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__setstate_cython__", 1, 1, 1, __pyx_nargs); __PYX_ERR(1, 3, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.RegressionCriterion.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return NULL;
  __pyx_L4_argument_unpacking_done:;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_19RegressionCriterion_4__setstate_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *)__pyx_v_self), __pyx_v___pyx_state);

  /* function exit code */
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_19RegressionCriterion_4__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__setstate_cython__", 1);

  /* "(tree fragment)":4
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 4, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.RegressionCriterion.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":438
 * cdef class MSECriterion(RegressionCriterion):
 * 
 *     cdef double proxy_impurity(self) nogil:             # <<<<<<<<<<<<<<
 *         cdef double proxy_impurity_left = self.sum_left * self.sum_left
 *         cdef double proxy_impurity_right = self.sum_right * self.sum_right
 */

static double __pyx_f_8wildboar_4tree_6_ctree_12MSECriterion_proxy_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *__pyx_v_self) {
  double __pyx_v_proxy_impurity_left;
  double __pyx_v_proxy_impurity_right;
  double __pyx_r;

  /* "wildboar/tree/_ctree.pyx":439
 * 
 *     cdef double proxy_impurity(self) nogil:
 *         cdef double proxy_impurity_left = self.sum_left * self.sum_left             # <<<<<<<<<<<<<<
 *         cdef double proxy_impurity_right = self.sum_right * self.sum_right
 *         return proxy_impurity_left / self.weighted_n_left + proxy_impurity_right / self.weighted_n_right
 */
  __pyx_v_proxy_impurity_left = (__pyx_v_self->__pyx_base.sum_left * __pyx_v_self->__pyx_base.sum_left);

  /* "wildboar/tree/_ctree.pyx":440
 *     cdef double proxy_impurity(self) nogil:
 *         cdef double proxy_impurity_left = self.sum_left * self.sum_left
 *         cdef double proxy_impurity_right = self.sum_right * self.sum_right             # <<<<<<<<<<<<<<
 *         return proxy_impurity_left / self.weighted_n_left + proxy_impurity_right / self.weighted_n_right
 * 
 */
  __pyx_v_proxy_impurity_right = (__pyx_v_self->__pyx_base.sum_right * __pyx_v_self->__pyx_base.sum_right);

  /* "wildboar/tree/_ctree.pyx":441
 *         cdef double proxy_impurity_left = self.sum_left * self.sum_left
 *         cdef double proxy_impurity_right = self.sum_right * self.sum_right
 *         return proxy_impurity_left / self.weighted_n_left + proxy_impurity_right / self.weighted_n_right             # <<<<<<<<<<<<<<
 * 
 *     cdef double impurity(self) nogil:
 */
  __pyx_r = ((__pyx_v_proxy_impurity_left / __pyx_v_self->__pyx_base.__pyx_base.weighted_n_left) + (__pyx_v_proxy_impurity_right / __pyx_v_self->__pyx_base.__pyx_base.weighted_n_right));
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":438
 * cdef class MSECriterion(RegressionCriterion):
 * 
 *     cdef double proxy_impurity(self) nogil:             # <<<<<<<<<<<<<<
 *         cdef double proxy_impurity_left = self.sum_left * self.sum_left
 *         cdef double proxy_impurity_right = self.sum_right * self.sum_right
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":443
 *         return proxy_impurity_left / self.weighted_n_left + proxy_impurity_right / self.weighted_n_right
 * 
 *     cdef double impurity(self) nogil:             # <<<<<<<<<<<<<<
 *         cdef double impurity
 *         impurity = self.sum_sq_total / self.weighted_n_total
 */

static double __pyx_f_8wildboar_4tree_6_ctree_12MSECriterion_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *__pyx_v_self) {
  double __pyx_v_impurity;
  double __pyx_r;

  /* "wildboar/tree/_ctree.pyx":445
 *     cdef double impurity(self) nogil:
 *         cdef double impurity
 *         impurity = self.sum_sq_total / self.weighted_n_total             # <<<<<<<<<<<<<<
 *         impurity -= (self.sum_total / self.weighted_n_total) ** 2
 *         return impurity
 */
  __pyx_v_impurity = (__pyx_v_self->__pyx_base.sum_sq_total / __pyx_v_self->__pyx_base.__pyx_base.weighted_n_total);

  /* "wildboar/tree/_ctree.pyx":446
 *         cdef double impurity
 *         impurity = self.sum_sq_total / self.weighted_n_total
 *         impurity -= (self.sum_total / self.weighted_n_total) ** 2             # <<<<<<<<<<<<<<
 *         return impurity
 * 
 */
  __pyx_v_impurity = (__pyx_v_impurity - pow((__pyx_v_self->__pyx_base.sum_total / __pyx_v_self->__pyx_base.__pyx_base.weighted_n_total), 2.0));

  /* "wildboar/tree/_ctree.pyx":447
 *         impurity = self.sum_sq_total / self.weighted_n_total
 *         impurity -= (self.sum_total / self.weighted_n_total) ** 2
 *         return impurity             # <<<<<<<<<<<<<<
 * 
 *     cdef void child_impurity(self, double* left, double *right) nogil:
 */
  __pyx_r = __pyx_v_impurity;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":443
 *         return proxy_impurity_left / self.weighted_n_left + proxy_impurity_right / self.weighted_n_right
 * 
 *     cdef double impurity(self) nogil:             # <<<<<<<<<<<<<<
 *         cdef double impurity
 *         impurity = self.sum_sq_total / self.weighted_n_total
 */

  /* function exit code */
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":449
 *         return impurity
 * 
 *     cdef void child_impurity(self, double* left, double *right) nogil:             # <<<<<<<<<<<<<<
 *         cdef double left_sq_sum = 0
 *         cdef double right_sq_sum = 0
 */

static void __pyx_f_8wildboar_4tree_6_ctree_12MSECriterion_child_impurity(struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *__pyx_v_self, double *__pyx_v_left, double *__pyx_v_right) {
  double __pyx_v_left_sq_sum;
  double __pyx_v_right_sq_sum;
  double __pyx_v_w;
  double __pyx_v_y;
  Py_ssize_t __pyx_v_i;
  Py_ssize_t __pyx_v_j;
  Py_ssize_t __pyx_v_p;
  Py_ssize_t __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  int __pyx_t_4;
  long __pyx_t_5;

  /* "wildboar/tree/_ctree.pyx":450
 * 
 *     cdef void child_impurity(self, double* left, double *right) nogil:
 *         cdef double left_sq_sum = 0             # <<<<<<<<<<<<<<
 *         cdef double right_sq_sum = 0
 *         cdef double w = 1.0
 */
  __pyx_v_left_sq_sum = 0.0;

  /* "wildboar/tree/_ctree.pyx":451
 *     cdef void child_impurity(self, double* left, double *right) nogil:
 *         cdef double left_sq_sum = 0
 *         cdef double right_sq_sum = 0             # <<<<<<<<<<<<<<
 *         cdef double w = 1.0
 *         cdef double y
 */
  __pyx_v_right_sq_sum = 0.0;

  /* "wildboar/tree/_ctree.pyx":452
 *         cdef double left_sq_sum = 0
 *         cdef double right_sq_sum = 0
 *         cdef double w = 1.0             # <<<<<<<<<<<<<<
 *         cdef double y
 *         cdef Py_ssize_t i, j, p
 */
  __pyx_v_w = 1.0;

  /* "wildboar/tree/_ctree.pyx":456
 *         cdef Py_ssize_t i, j, p
 * 
 *         for i in range(self.start, self.pos):             # <<<<<<<<<<<<<<
 *             j = self.samples[i]
 *             p = self.label_stride * j
 */
  __pyx_t_1 = __pyx_v_self->__pyx_base.pos;
  __pyx_t_2 = __pyx_t_1;
  for (__pyx_t_3 = __pyx_v_self->__pyx_base.__pyx_base.start; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
    __pyx_v_i = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":457
 * 
 *         for i in range(self.start, self.pos):
 *             j = self.samples[i]             # <<<<<<<<<<<<<<
 *             p = self.label_stride * j
 * 
 */
    __pyx_v_j = (__pyx_v_self->__pyx_base.__pyx_base.samples[__pyx_v_i]);

    /* "wildboar/tree/_ctree.pyx":458
 *         for i in range(self.start, self.pos):
 *             j = self.samples[i]
 *             p = self.label_stride * j             # <<<<<<<<<<<<<<
 * 
 *             if self.sample_weight != NULL:
 */
    __pyx_v_p = (__pyx_v_self->__pyx_base.label_stride * __pyx_v_j);

    /* "wildboar/tree/_ctree.pyx":460
 *             p = self.label_stride * j
 * 
 *             if self.sample_weight != NULL:             # <<<<<<<<<<<<<<
 *                 w = self.sample_weight[j]
 * 
 */
    __pyx_t_4 = (__pyx_v_self->__pyx_base.__pyx_base.sample_weight != NULL);
    if (__pyx_t_4) {

      /* "wildboar/tree/_ctree.pyx":461
 * 
 *             if self.sample_weight != NULL:
 *                 w = self.sample_weight[j]             # <<<<<<<<<<<<<<
 * 
 *             y = self.labels[p]
 */
      __pyx_v_w = (__pyx_v_self->__pyx_base.__pyx_base.sample_weight[__pyx_v_j]);

      /* "wildboar/tree/_ctree.pyx":460
 *             p = self.label_stride * j
 * 
 *             if self.sample_weight != NULL:             # <<<<<<<<<<<<<<
 *                 w = self.sample_weight[j]
 * 
 */
    }

    /* "wildboar/tree/_ctree.pyx":463
 *                 w = self.sample_weight[j]
 * 
 *             y = self.labels[p]             # <<<<<<<<<<<<<<
 *             left_sq_sum += w * y * y
 *         right_sq_sum = self.sum_sq_total - left_sq_sum
 */
    __pyx_v_y = (__pyx_v_self->__pyx_base.labels[__pyx_v_p]);

    /* "wildboar/tree/_ctree.pyx":464
 * 
 *             y = self.labels[p]
 *             left_sq_sum += w * y * y             # <<<<<<<<<<<<<<
 *         right_sq_sum = self.sum_sq_total - left_sq_sum
 * 
 */
    __pyx_v_left_sq_sum = (__pyx_v_left_sq_sum + ((__pyx_v_w * __pyx_v_y) * __pyx_v_y));
  }

  /* "wildboar/tree/_ctree.pyx":465
 *             y = self.labels[p]
 *             left_sq_sum += w * y * y
 *         right_sq_sum = self.sum_sq_total - left_sq_sum             # <<<<<<<<<<<<<<
 * 
 *         left[0] = left_sq_sum / self.weighted_n_left
 */
  __pyx_v_right_sq_sum = (__pyx_v_self->__pyx_base.sum_sq_total - __pyx_v_left_sq_sum);

  /* "wildboar/tree/_ctree.pyx":467
 *         right_sq_sum = self.sum_sq_total - left_sq_sum
 * 
 *         left[0] = left_sq_sum / self.weighted_n_left             # <<<<<<<<<<<<<<
 *         left[0] -= (self.sum_left / self.weighted_n_left) ** 2
 *         right[0] = right_sq_sum / self.weighted_n_right
 */
  (__pyx_v_left[0]) = (__pyx_v_left_sq_sum / __pyx_v_self->__pyx_base.__pyx_base.weighted_n_left);

  /* "wildboar/tree/_ctree.pyx":468
 * 
 *         left[0] = left_sq_sum / self.weighted_n_left
 *         left[0] -= (self.sum_left / self.weighted_n_left) ** 2             # <<<<<<<<<<<<<<
 *         right[0] = right_sq_sum / self.weighted_n_right
 *         right[0] -= (self.sum_right / self.weighted_n_right) ** 2
 */
  __pyx_t_5 = 0;
  (__pyx_v_left[__pyx_t_5]) = ((__pyx_v_left[__pyx_t_5]) - pow((__pyx_v_self->__pyx_base.sum_left / __pyx_v_self->__pyx_base.__pyx_base.weighted_n_left), 2.0));

  /* "wildboar/tree/_ctree.pyx":469
 *         left[0] = left_sq_sum / self.weighted_n_left
 *         left[0] -= (self.sum_left / self.weighted_n_left) ** 2
 *         right[0] = right_sq_sum / self.weighted_n_right             # <<<<<<<<<<<<<<
 *         right[0] -= (self.sum_right / self.weighted_n_right) ** 2
 * 
 */
  (__pyx_v_right[0]) = (__pyx_v_right_sq_sum / __pyx_v_self->__pyx_base.__pyx_base.weighted_n_right);

  /* "wildboar/tree/_ctree.pyx":470
 *         left[0] -= (self.sum_left / self.weighted_n_left) ** 2
 *         right[0] = right_sq_sum / self.weighted_n_right
 *         right[0] -= (self.sum_right / self.weighted_n_right) ** 2             # <<<<<<<<<<<<<<
 * 
 * cpdef Tree _make_tree(
 */
  __pyx_t_5 = 0;
  (__pyx_v_right[__pyx_t_5]) = ((__pyx_v_right[__pyx_t_5]) - pow((__pyx_v_self->__pyx_base.sum_right / __pyx_v_self->__pyx_base.__pyx_base.weighted_n_right), 2.0));

  /* "wildboar/tree/_ctree.pyx":449
 *         return impurity
 * 
 *     cdef void child_impurity(self, double* left, double *right) nogil:             # <<<<<<<<<<<<<<
 *         cdef double left_sq_sum = 0
 *         cdef double right_sq_sum = 0
 */

  /* function exit code */
}

/* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_12MSECriterion_1__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_12MSECriterion_1__reduce_cython__ = {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_12MSECriterion_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_12MSECriterion_1__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__reduce_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  if (unlikely(__pyx_nargs > 0)) {
    __Pyx_RaiseArgtupleInvalid("__reduce_cython__", 1, 0, 0, __pyx_nargs); return NULL;}
  if (unlikely(__pyx_kwds) && __Pyx_NumKwargs_FASTCALL(__pyx_kwds) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__reduce_cython__", 0))) return NULL;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_12MSECriterion___reduce_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_12MSECriterion___reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__reduce_cython__", 1);

  /* "(tree fragment)":2
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 2, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.MSECriterion.__reduce_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_12MSECriterion_3__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_12MSECriterion_3__setstate_cython__ = {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_12MSECriterion_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_12MSECriterion_3__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  CYTHON_UNUSED PyObject *__pyx_v___pyx_state = 0;
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__setstate_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_pyx_state,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_FASTCALL(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_pyx_state)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(1, 3, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__setstate_cython__") < 0)) __PYX_ERR(1, 3, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
    }
    __pyx_v___pyx_state = values[0];
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__setstate_cython__", 1, 1, 1, __pyx_nargs); __PYX_ERR(1, 3, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.MSECriterion.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return NULL;
  __pyx_L4_argument_unpacking_done:;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_12MSECriterion_2__setstate_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *)__pyx_v_self), __pyx_v___pyx_state);

  /* function exit code */
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_12MSECriterion_2__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__setstate_cython__", 1);

  /* "(tree fragment)":4
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 4, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.MSECriterion.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":472
 *         right[0] -= (self.sum_right / self.weighted_n_right) ** 2
 * 
 * cpdef Tree _make_tree(             # <<<<<<<<<<<<<<
 *     TreeFeatureEngineer feature_engineer,
 *     Py_ssize_t n_labels,
 */

static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_1_make_tree(PyObject *__pyx_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_f_8wildboar_4tree_6_ctree__make_tree(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_feature_engineer, Py_ssize_t __pyx_v_n_labels, Py_ssize_t __pyx_v_max_depth, PyObject *__pyx_v_features, PyArrayObject *__pyx_v_threshold, PyArrayObject *__pyx_v_value, PyArrayObject *__pyx_v_left, PyArrayObject *__pyx_v_right, PyArrayObject *__pyx_v_impurity, PyArrayObject *__pyx_v_n_node_samples, PyArrayObject *__pyx_v_n_weighted_node_samples, CYTHON_UNUSED int __pyx_skip_dispatch) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_tree = 0;
  Py_ssize_t __pyx_v_node_count;
  Py_ssize_t __pyx_v_i;
  struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature;
  PyArrayObject *__pyx_v_value_reshape = 0;
  struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  Py_ssize_t __pyx_t_3;
  PyObject *__pyx_t_4 = NULL;
  int __pyx_t_5;
  Py_ssize_t __pyx_t_6;
  Py_ssize_t __pyx_t_7;
  int __pyx_t_8;
  double __pyx_t_9;
  Py_ssize_t __pyx_t_10;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("_make_tree", 1);

  /* "wildboar/tree/_ctree.pyx":485
 *     np.ndarray n_weighted_node_samples
 * ):
 *     cdef Tree tree = Tree(feature_engineer, n_labels, capacity=len(features) + 1)             # <<<<<<<<<<<<<<
 *     tree._max_depth = max_depth
 *     cdef Py_ssize_t node_count = len(features)
 */
  __pyx_t_1 = PyInt_FromSsize_t(__pyx_v_n_labels); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 485, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = PyTuple_New(2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 485, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_INCREF((PyObject *)__pyx_v_feature_engineer);
  __Pyx_GIVEREF((PyObject *)__pyx_v_feature_engineer);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_2, 0, ((PyObject *)__pyx_v_feature_engineer))) __PYX_ERR(0, 485, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_1);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_2, 1, __pyx_t_1)) __PYX_ERR(0, 485, __pyx_L1_error);
  __pyx_t_1 = 0;
  __pyx_t_1 = __Pyx_PyDict_NewPresized(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 485, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  if (unlikely(__pyx_v_features == Py_None)) {
    PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()");
    __PYX_ERR(0, 485, __pyx_L1_error)
  }
  __pyx_t_3 = __Pyx_PyList_GET_SIZE(__pyx_v_features); if (unlikely(__pyx_t_3 == ((Py_ssize_t)-1))) __PYX_ERR(0, 485, __pyx_L1_error)
  __pyx_t_4 = PyInt_FromSsize_t((__pyx_t_3 + 1)); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 485, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_capacity, __pyx_t_4) < 0) __PYX_ERR(0, 485, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
  __pyx_t_4 = __Pyx_PyObject_Call(((PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_Tree), __pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 485, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_v_tree = ((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_t_4);
  __pyx_t_4 = 0;

  /* "wildboar/tree/_ctree.pyx":486
 * ):
 *     cdef Tree tree = Tree(feature_engineer, n_labels, capacity=len(features) + 1)
 *     tree._max_depth = max_depth             # <<<<<<<<<<<<<<
 *     cdef Py_ssize_t node_count = len(features)
 *     cdef Py_ssize_t i
 */
  __pyx_v_tree->_max_depth = __pyx_v_max_depth;

  /* "wildboar/tree/_ctree.pyx":487
 *     cdef Tree tree = Tree(feature_engineer, n_labels, capacity=len(features) + 1)
 *     tree._max_depth = max_depth
 *     cdef Py_ssize_t node_count = len(features)             # <<<<<<<<<<<<<<
 *     cdef Py_ssize_t i
 *     cdef Py_ssize_t dim
 */
  if (unlikely(__pyx_v_features == Py_None)) {
    PyErr_SetString(PyExc_TypeError, "object of type 'NoneType' has no len()");
    __PYX_ERR(0, 487, __pyx_L1_error)
  }
  __pyx_t_3 = __Pyx_PyList_GET_SIZE(__pyx_v_features); if (unlikely(__pyx_t_3 == ((Py_ssize_t)-1))) __PYX_ERR(0, 487, __pyx_L1_error)
  __pyx_v_node_count = __pyx_t_3;

  /* "wildboar/tree/_ctree.pyx":492
 *     cdef np.ndarray arr
 *     cdef Feature *feature
 *     cdef np.ndarray value_reshape = value.reshape(-1)             # <<<<<<<<<<<<<<
 * 
 *     tree._node_count = node_count
 */
  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_value), __pyx_n_s_reshape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 492, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = NULL;
  __pyx_t_5 = 0;
  #if CYTHON_UNPACK_METHODS
  if (likely(PyMethod_Check(__pyx_t_1))) {
    __pyx_t_2 = PyMethod_GET_SELF(__pyx_t_1);
    if (likely(__pyx_t_2)) {
      PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_1);
      __Pyx_INCREF(__pyx_t_2);
      __Pyx_INCREF(function);
      __Pyx_DECREF_SET(__pyx_t_1, function);
      __pyx_t_5 = 1;
    }
  }
  #endif
  {
    PyObject *__pyx_callargs[2] = {__pyx_t_2, __pyx_int_neg_1};
    __pyx_t_4 = __Pyx_PyObject_FastCall(__pyx_t_1, __pyx_callargs+1-__pyx_t_5, 1+__pyx_t_5);
    __Pyx_XDECREF(__pyx_t_2); __pyx_t_2 = 0;
    if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 492, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  }
  if (!(likely(((__pyx_t_4) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_4, __pyx_ptype_5numpy_ndarray))))) __PYX_ERR(0, 492, __pyx_L1_error)
  __pyx_v_value_reshape = ((PyArrayObject *)__pyx_t_4);
  __pyx_t_4 = 0;

  /* "wildboar/tree/_ctree.pyx":494
 *     cdef np.ndarray value_reshape = value.reshape(-1)
 * 
 *     tree._node_count = node_count             # <<<<<<<<<<<<<<
 *     for i in range(node_count):
 *         if features[i] is not None:
 */
  __pyx_v_tree->_node_count = __pyx_v_node_count;

  /* "wildboar/tree/_ctree.pyx":495
 * 
 *     tree._node_count = node_count
 *     for i in range(node_count):             # <<<<<<<<<<<<<<
 *         if features[i] is not None:
 *             feature = <Feature*> malloc(sizeof(Feature))
 */
  __pyx_t_3 = __pyx_v_node_count;
  __pyx_t_6 = __pyx_t_3;
  for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
    __pyx_v_i = __pyx_t_7;

    /* "wildboar/tree/_ctree.pyx":496
 *     tree._node_count = node_count
 *     for i in range(node_count):
 *         if features[i] is not None:             # <<<<<<<<<<<<<<
 *             feature = <Feature*> malloc(sizeof(Feature))
 *             feature_engineer.persistent_feature_from_object(features[i], feature)
 */
    if (unlikely(__pyx_v_features == Py_None)) {
      PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
      __PYX_ERR(0, 496, __pyx_L1_error)
    }
    __pyx_t_8 = (PyList_GET_ITEM(__pyx_v_features, __pyx_v_i) != Py_None);
    if (__pyx_t_8) {

      /* "wildboar/tree/_ctree.pyx":497
 *     for i in range(node_count):
 *         if features[i] is not None:
 *             feature = <Feature*> malloc(sizeof(Feature))             # <<<<<<<<<<<<<<
 *             feature_engineer.persistent_feature_from_object(features[i], feature)
 *             tree._features[i] = feature
 */
      __pyx_v_feature = ((struct __pyx_t_8wildboar_9transform_8_feature_Feature *)malloc((sizeof(struct __pyx_t_8wildboar_9transform_8_feature_Feature))));

      /* "wildboar/tree/_ctree.pyx":498
 *         if features[i] is not None:
 *             feature = <Feature*> malloc(sizeof(Feature))
 *             feature_engineer.persistent_feature_from_object(features[i], feature)             # <<<<<<<<<<<<<<
 *             tree._features[i] = feature
 *         else:
 */
      if (unlikely(__pyx_v_features == Py_None)) {
        PyErr_SetString(PyExc_TypeError, "'NoneType' object is not subscriptable");
        __PYX_ERR(0, 498, __pyx_L1_error)
      }
      __pyx_t_4 = PyList_GET_ITEM(__pyx_v_features, __pyx_v_i);
      __Pyx_INCREF(__pyx_t_4);
      ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_feature_engineer->__pyx_vtab)->persistent_feature_from_object(__pyx_v_feature_engineer, __pyx_t_4, __pyx_v_feature); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 498, __pyx_L1_error)
      __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;

      /* "wildboar/tree/_ctree.pyx":499
 *             feature = <Feature*> malloc(sizeof(Feature))
 *             feature_engineer.persistent_feature_from_object(features[i], feature)
 *             tree._features[i] = feature             # <<<<<<<<<<<<<<
 *         else:
 *             tree._features[i] = NULL
 */
      (__pyx_v_tree->_features[__pyx_v_i]) = __pyx_v_feature;

      /* "wildboar/tree/_ctree.pyx":496
 *     tree._node_count = node_count
 *     for i in range(node_count):
 *         if features[i] is not None:             # <<<<<<<<<<<<<<
 *             feature = <Feature*> malloc(sizeof(Feature))
 *             feature_engineer.persistent_feature_from_object(features[i], feature)
 */
      goto __pyx_L5;
    }

    /* "wildboar/tree/_ctree.pyx":501
 *             tree._features[i] = feature
 *         else:
 *             tree._features[i] = NULL             # <<<<<<<<<<<<<<
 *         tree._thresholds[i] = threshold[i]
 *         tree._left[i] = left[i]
 */
    /*else*/ {
      (__pyx_v_tree->_features[__pyx_v_i]) = NULL;
    }
    __pyx_L5:;

    /* "wildboar/tree/_ctree.pyx":502
 *         else:
 *             tree._features[i] = NULL
 *         tree._thresholds[i] = threshold[i]             # <<<<<<<<<<<<<<
 *         tree._left[i] = left[i]
 *         tree._right[i] = right[i]
 */
    __pyx_t_4 = __Pyx_GetItemInt(((PyObject *)__pyx_v_threshold), __pyx_v_i, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 502, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    __pyx_t_9 = __pyx_PyFloat_AsDouble(__pyx_t_4); if (unlikely((__pyx_t_9 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 502, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
    (__pyx_v_tree->_thresholds[__pyx_v_i]) = __pyx_t_9;

    /* "wildboar/tree/_ctree.pyx":503
 *             tree._features[i] = NULL
 *         tree._thresholds[i] = threshold[i]
 *         tree._left[i] = left[i]             # <<<<<<<<<<<<<<
 *         tree._right[i] = right[i]
 *         tree._impurity[i] = impurity[i]
 */
    __pyx_t_4 = __Pyx_GetItemInt(((PyObject *)__pyx_v_left), __pyx_v_i, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 503, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    __pyx_t_10 = __Pyx_PyIndex_AsSsize_t(__pyx_t_4); if (unlikely((__pyx_t_10 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 503, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
    (__pyx_v_tree->_left[__pyx_v_i]) = __pyx_t_10;

    /* "wildboar/tree/_ctree.pyx":504
 *         tree._thresholds[i] = threshold[i]
 *         tree._left[i] = left[i]
 *         tree._right[i] = right[i]             # <<<<<<<<<<<<<<
 *         tree._impurity[i] = impurity[i]
 *         tree._n_node_samples[i] = n_node_samples[i]
 */
    __pyx_t_4 = __Pyx_GetItemInt(((PyObject *)__pyx_v_right), __pyx_v_i, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 504, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    __pyx_t_10 = __Pyx_PyIndex_AsSsize_t(__pyx_t_4); if (unlikely((__pyx_t_10 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 504, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
    (__pyx_v_tree->_right[__pyx_v_i]) = __pyx_t_10;

    /* "wildboar/tree/_ctree.pyx":505
 *         tree._left[i] = left[i]
 *         tree._right[i] = right[i]
 *         tree._impurity[i] = impurity[i]             # <<<<<<<<<<<<<<
 *         tree._n_node_samples[i] = n_node_samples[i]
 *         tree._n_weighted_node_samples[i] = n_weighted_node_samples[i]
 */
    __pyx_t_4 = __Pyx_GetItemInt(((PyObject *)__pyx_v_impurity), __pyx_v_i, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 505, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    __pyx_t_9 = __pyx_PyFloat_AsDouble(__pyx_t_4); if (unlikely((__pyx_t_9 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 505, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
    (__pyx_v_tree->_impurity[__pyx_v_i]) = __pyx_t_9;

    /* "wildboar/tree/_ctree.pyx":506
 *         tree._right[i] = right[i]
 *         tree._impurity[i] = impurity[i]
 *         tree._n_node_samples[i] = n_node_samples[i]             # <<<<<<<<<<<<<<
 *         tree._n_weighted_node_samples[i] = n_weighted_node_samples[i]
 * 
 */
    __pyx_t_4 = __Pyx_GetItemInt(((PyObject *)__pyx_v_n_node_samples), __pyx_v_i, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 506, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    __pyx_t_10 = __Pyx_PyIndex_AsSsize_t(__pyx_t_4); if (unlikely((__pyx_t_10 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 506, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
    (__pyx_v_tree->_n_node_samples[__pyx_v_i]) = __pyx_t_10;

    /* "wildboar/tree/_ctree.pyx":507
 *         tree._impurity[i] = impurity[i]
 *         tree._n_node_samples[i] = n_node_samples[i]
 *         tree._n_weighted_node_samples[i] = n_weighted_node_samples[i]             # <<<<<<<<<<<<<<
 * 
 *     for i in range(node_count * n_labels):
 */
    __pyx_t_4 = __Pyx_GetItemInt(((PyObject *)__pyx_v_n_weighted_node_samples), __pyx_v_i, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 507, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    __pyx_t_9 = __pyx_PyFloat_AsDouble(__pyx_t_4); if (unlikely((__pyx_t_9 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 507, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
    (__pyx_v_tree->_n_weighted_node_samples[__pyx_v_i]) = __pyx_t_9;
  }

  /* "wildboar/tree/_ctree.pyx":509
 *         tree._n_weighted_node_samples[i] = n_weighted_node_samples[i]
 * 
 *     for i in range(node_count * n_labels):             # <<<<<<<<<<<<<<
 *         tree._values[i] = value_reshape[i]
 *     return tree
 */
  __pyx_t_3 = (__pyx_v_node_count * __pyx_v_n_labels);
  __pyx_t_6 = __pyx_t_3;
  for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
    __pyx_v_i = __pyx_t_7;

    /* "wildboar/tree/_ctree.pyx":510
 * 
 *     for i in range(node_count * n_labels):
 *         tree._values[i] = value_reshape[i]             # <<<<<<<<<<<<<<
 *     return tree
 * 
 */
    __pyx_t_4 = __Pyx_GetItemInt(((PyObject *)__pyx_v_value_reshape), __pyx_v_i, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 510, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    __pyx_t_9 = __pyx_PyFloat_AsDouble(__pyx_t_4); if (unlikely((__pyx_t_9 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 510, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
    (__pyx_v_tree->_values[__pyx_v_i]) = __pyx_t_9;
  }

  /* "wildboar/tree/_ctree.pyx":511
 *     for i in range(node_count * n_labels):
 *         tree._values[i] = value_reshape[i]
 *     return tree             # <<<<<<<<<<<<<<
 * 
 * 
 */
  __Pyx_XDECREF((PyObject *)__pyx_r);
  __Pyx_INCREF((PyObject *)__pyx_v_tree);
  __pyx_r = __pyx_v_tree;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":472
 *         right[0] -= (self.sum_right / self.weighted_n_right) ** 2
 * 
 * cpdef Tree _make_tree(             # <<<<<<<<<<<<<<
 *     TreeFeatureEngineer feature_engineer,
 *     Py_ssize_t n_labels,
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_AddTraceback("wildboar.tree._ctree._make_tree", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  __pyx_L0:;
  __Pyx_XDECREF((PyObject *)__pyx_v_tree);
  __Pyx_XDECREF((PyObject *)__pyx_v_value_reshape);
  __Pyx_XGIVEREF((PyObject *)__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_1_make_tree(PyObject *__pyx_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_1_make_tree = {"_make_tree", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_1_make_tree, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_1_make_tree(PyObject *__pyx_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_feature_engineer = 0;
  Py_ssize_t __pyx_v_n_labels;
  Py_ssize_t __pyx_v_max_depth;
  PyObject *__pyx_v_features = 0;
  PyArrayObject *__pyx_v_threshold = 0;
  PyArrayObject *__pyx_v_value = 0;
  PyArrayObject *__pyx_v_left = 0;
  PyArrayObject *__pyx_v_right = 0;
  PyArrayObject *__pyx_v_impurity = 0;
  PyArrayObject *__pyx_v_n_node_samples = 0;
  PyArrayObject *__pyx_v_n_weighted_node_samples = 0;
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[11] = {0,0,0,0,0,0,0,0,0,0,0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("_make_tree (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_feature_engineer,&__pyx_n_s_n_labels,&__pyx_n_s_max_depth,&__pyx_n_s_features,&__pyx_n_s_threshold,&__pyx_n_s_value,&__pyx_n_s_left,&__pyx_n_s_right,&__pyx_n_s_impurity,&__pyx_n_s_n_node_samples,&__pyx_n_s_n_weighted_node_samples,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case 11: values[10] = __Pyx_Arg_FASTCALL(__pyx_args, 10);
        CYTHON_FALLTHROUGH;
        case 10: values[9] = __Pyx_Arg_FASTCALL(__pyx_args, 9);
        CYTHON_FALLTHROUGH;
        case  9: values[8] = __Pyx_Arg_FASTCALL(__pyx_args, 8);
        CYTHON_FALLTHROUGH;
        case  8: values[7] = __Pyx_Arg_FASTCALL(__pyx_args, 7);
        CYTHON_FALLTHROUGH;
        case  7: values[6] = __Pyx_Arg_FASTCALL(__pyx_args, 6);
        CYTHON_FALLTHROUGH;
        case  6: values[5] = __Pyx_Arg_FASTCALL(__pyx_args, 5);
        CYTHON_FALLTHROUGH;
        case  5: values[4] = __Pyx_Arg_FASTCALL(__pyx_args, 4);
        CYTHON_FALLTHROUGH;
        case  4: values[3] = __Pyx_Arg_FASTCALL(__pyx_args, 3);
        CYTHON_FALLTHROUGH;
        case  3: values[2] = __Pyx_Arg_FASTCALL(__pyx_args, 2);
        CYTHON_FALLTHROUGH;
        case  2: values[1] = __Pyx_Arg_FASTCALL(__pyx_args, 1);
        CYTHON_FALLTHROUGH;
        case  1: values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_FASTCALL(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_feature_engineer)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 472, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
        CYTHON_FALLTHROUGH;
        case  1:
        if (likely((values[1] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_n_labels)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[1]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 472, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("_make_tree", 1, 11, 11, 1); __PYX_ERR(0, 472, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  2:
        if (likely((values[2] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_max_depth)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[2]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 472, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("_make_tree", 1, 11, 11, 2); __PYX_ERR(0, 472, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  3:
        if (likely((values[3] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_features)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[3]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 472, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("_make_tree", 1, 11, 11, 3); __PYX_ERR(0, 472, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  4:
        if (likely((values[4] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_threshold)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[4]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 472, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("_make_tree", 1, 11, 11, 4); __PYX_ERR(0, 472, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  5:
        if (likely((values[5] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_value)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[5]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 472, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("_make_tree", 1, 11, 11, 5); __PYX_ERR(0, 472, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  6:
        if (likely((values[6] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_left)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[6]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 472, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("_make_tree", 1, 11, 11, 6); __PYX_ERR(0, 472, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  7:
        if (likely((values[7] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_right)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[7]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 472, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("_make_tree", 1, 11, 11, 7); __PYX_ERR(0, 472, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  8:
        if (likely((values[8] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_impurity)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[8]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 472, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("_make_tree", 1, 11, 11, 8); __PYX_ERR(0, 472, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  9:
        if (likely((values[9] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_n_node_samples)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[9]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 472, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("_make_tree", 1, 11, 11, 9); __PYX_ERR(0, 472, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case 10:
        if (likely((values[10] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_n_weighted_node_samples)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[10]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 472, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("_make_tree", 1, 11, 11, 10); __PYX_ERR(0, 472, __pyx_L3_error)
        }
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "_make_tree") < 0)) __PYX_ERR(0, 472, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 11)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
      values[1] = __Pyx_Arg_FASTCALL(__pyx_args, 1);
      values[2] = __Pyx_Arg_FASTCALL(__pyx_args, 2);
      values[3] = __Pyx_Arg_FASTCALL(__pyx_args, 3);
      values[4] = __Pyx_Arg_FASTCALL(__pyx_args, 4);
      values[5] = __Pyx_Arg_FASTCALL(__pyx_args, 5);
      values[6] = __Pyx_Arg_FASTCALL(__pyx_args, 6);
      values[7] = __Pyx_Arg_FASTCALL(__pyx_args, 7);
      values[8] = __Pyx_Arg_FASTCALL(__pyx_args, 8);
      values[9] = __Pyx_Arg_FASTCALL(__pyx_args, 9);
      values[10] = __Pyx_Arg_FASTCALL(__pyx_args, 10);
    }
    __pyx_v_feature_engineer = ((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)values[0]);
    __pyx_v_n_labels = __Pyx_PyIndex_AsSsize_t(values[1]); if (unlikely((__pyx_v_n_labels == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 474, __pyx_L3_error)
    __pyx_v_max_depth = __Pyx_PyIndex_AsSsize_t(values[2]); if (unlikely((__pyx_v_max_depth == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 475, __pyx_L3_error)
    __pyx_v_features = ((PyObject*)values[3]);
    __pyx_v_threshold = ((PyArrayObject *)values[4]);
    __pyx_v_value = ((PyArrayObject *)values[5]);
    __pyx_v_left = ((PyArrayObject *)values[6]);
    __pyx_v_right = ((PyArrayObject *)values[7]);
    __pyx_v_impurity = ((PyArrayObject *)values[8]);
    __pyx_v_n_node_samples = ((PyArrayObject *)values[9]);
    __pyx_v_n_weighted_node_samples = ((PyArrayObject *)values[10]);
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("_make_tree", 1, 11, 11, __pyx_nargs); __PYX_ERR(0, 472, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree._make_tree", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return NULL;
  __pyx_L4_argument_unpacking_done:;
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_feature_engineer), __pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer, 1, "feature_engineer", 0))) __PYX_ERR(0, 473, __pyx_L1_error)
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_features), (&PyList_Type), 1, "features", 1))) __PYX_ERR(0, 476, __pyx_L1_error)
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_threshold), __pyx_ptype_5numpy_ndarray, 1, "threshold", 0))) __PYX_ERR(0, 477, __pyx_L1_error)
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_value), __pyx_ptype_5numpy_ndarray, 1, "value", 0))) __PYX_ERR(0, 478, __pyx_L1_error)
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_left), __pyx_ptype_5numpy_ndarray, 1, "left", 0))) __PYX_ERR(0, 479, __pyx_L1_error)
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_right), __pyx_ptype_5numpy_ndarray, 1, "right", 0))) __PYX_ERR(0, 480, __pyx_L1_error)
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_impurity), __pyx_ptype_5numpy_ndarray, 1, "impurity", 0))) __PYX_ERR(0, 481, __pyx_L1_error)
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_n_node_samples), __pyx_ptype_5numpy_ndarray, 1, "n_node_samples", 0))) __PYX_ERR(0, 482, __pyx_L1_error)
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_n_weighted_node_samples), __pyx_ptype_5numpy_ndarray, 1, "n_weighted_node_samples", 0))) __PYX_ERR(0, 483, __pyx_L1_error)
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree__make_tree(__pyx_self, __pyx_v_feature_engineer, __pyx_v_n_labels, __pyx_v_max_depth, __pyx_v_features, __pyx_v_threshold, __pyx_v_value, __pyx_v_left, __pyx_v_right, __pyx_v_impurity, __pyx_v_n_node_samples, __pyx_v_n_weighted_node_samples);

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  __pyx_r = NULL;
  __pyx_L0:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree__make_tree(CYTHON_UNUSED PyObject *__pyx_self, struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_feature_engineer, Py_ssize_t __pyx_v_n_labels, Py_ssize_t __pyx_v_max_depth, PyObject *__pyx_v_features, PyArrayObject *__pyx_v_threshold, PyArrayObject *__pyx_v_value, PyArrayObject *__pyx_v_left, PyArrayObject *__pyx_v_right, PyArrayObject *__pyx_v_impurity, PyArrayObject *__pyx_v_n_node_samples, PyArrayObject *__pyx_v_n_weighted_node_samples) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("_make_tree", 1);
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = ((PyObject *)__pyx_f_8wildboar_4tree_6_ctree__make_tree(__pyx_v_feature_engineer, __pyx_v_n_labels, __pyx_v_max_depth, __pyx_v_features, __pyx_v_threshold, __pyx_v_value, __pyx_v_left, __pyx_v_right, __pyx_v_impurity, __pyx_v_n_node_samples, __pyx_v_n_weighted_node_samples, 0)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 472, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_r = __pyx_t_1;
  __pyx_t_1 = 0;
  goto __pyx_L0;

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_AddTraceback("wildboar.tree._ctree._make_tree", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":532
 *     cdef Py_ssize_t *_n_node_samples
 * 
 *     def __cinit__(             # <<<<<<<<<<<<<<
 *         self,
 *         TreeFeatureEngineer feature_engineer,
 */

/* Python wrapper */
static int __pyx_pw_8wildboar_4tree_6_ctree_4Tree_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
static int __pyx_pw_8wildboar_4tree_6_ctree_4Tree_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_feature_engineer = 0;
  Py_ssize_t __pyx_v_n_labels;
  Py_ssize_t __pyx_v_capacity;
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[3] = {0,0,0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__cinit__ (wrapper)", 0);
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return -1;
  #endif
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_feature_engineer,&__pyx_n_s_n_labels,&__pyx_n_s_capacity,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  3: values[2] = __Pyx_Arg_VARARGS(__pyx_args, 2);
        CYTHON_FALLTHROUGH;
        case  2: values[1] = __Pyx_Arg_VARARGS(__pyx_args, 1);
        CYTHON_FALLTHROUGH;
        case  1: values[0] = __Pyx_Arg_VARARGS(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_VARARGS(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_feature_engineer)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 532, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
        CYTHON_FALLTHROUGH;
        case  1:
        if (likely((values[1] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_n_labels)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[1]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 532, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 2, 3, 1); __PYX_ERR(0, 532, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  2:
        if (kw_args > 0) {
          PyObject* value = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_capacity);
          if (value) { values[2] = __Pyx_Arg_NewRef_VARARGS(value); kw_args--; }
          else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 532, __pyx_L3_error)
        }
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__cinit__") < 0)) __PYX_ERR(0, 532, __pyx_L3_error)
      }
    } else {
      switch (__pyx_nargs) {
        case  3: values[2] = __Pyx_Arg_VARARGS(__pyx_args, 2);
        CYTHON_FALLTHROUGH;
        case  2: values[1] = __Pyx_Arg_VARARGS(__pyx_args, 1);
        values[0] = __Pyx_Arg_VARARGS(__pyx_args, 0);
        break;
        default: goto __pyx_L5_argtuple_error;
      }
    }
    __pyx_v_feature_engineer = ((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)values[0]);
    __pyx_v_n_labels = __Pyx_PyIndex_AsSsize_t(values[1]); if (unlikely((__pyx_v_n_labels == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 535, __pyx_L3_error)
    if (values[2]) {
      __pyx_v_capacity = __Pyx_PyIndex_AsSsize_t(values[2]); if (unlikely((__pyx_v_capacity == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 536, __pyx_L3_error)
    } else {
      __pyx_v_capacity = ((Py_ssize_t)10);
    }
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 2, 3, __pyx_nargs); __PYX_ERR(0, 532, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_VARARGS(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return -1;
  __pyx_L4_argument_unpacking_done:;
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_feature_engineer), __pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer, 1, "feature_engineer", 0))) __PYX_ERR(0, 534, __pyx_L1_error)
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree___cinit__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self), __pyx_v_feature_engineer, __pyx_v_n_labels, __pyx_v_capacity);

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  __pyx_r = -1;
  __pyx_L0:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_VARARGS(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static int __pyx_pf_8wildboar_4tree_6_ctree_4Tree___cinit__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_feature_engineer, Py_ssize_t __pyx_v_n_labels, Py_ssize_t __pyx_v_capacity) {
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__cinit__", 1);

  /* "wildboar/tree/_ctree.pyx":538
 *         Py_ssize_t capacity=10
 *     ):
 *         self.feature_engineer = feature_engineer             # <<<<<<<<<<<<<<
 *         self._node_count = 0
 *         self._capacity = capacity
 */
  __Pyx_INCREF((PyObject *)__pyx_v_feature_engineer);
  __Pyx_GIVEREF((PyObject *)__pyx_v_feature_engineer);
  __Pyx_GOTREF((PyObject *)__pyx_v_self->feature_engineer);
  __Pyx_DECREF((PyObject *)__pyx_v_self->feature_engineer);
  __pyx_v_self->feature_engineer = __pyx_v_feature_engineer;

  /* "wildboar/tree/_ctree.pyx":539
 *     ):
 *         self.feature_engineer = feature_engineer
 *         self._node_count = 0             # <<<<<<<<<<<<<<
 *         self._capacity = capacity
 *         self._n_labels = n_labels
 */
  __pyx_v_self->_node_count = 0;

  /* "wildboar/tree/_ctree.pyx":540
 *         self.feature_engineer = feature_engineer
 *         self._node_count = 0
 *         self._capacity = capacity             # <<<<<<<<<<<<<<
 *         self._n_labels = n_labels
 *         self._features = <Feature**> malloc(self._capacity * sizeof(Feature*))
 */
  __pyx_v_self->_capacity = __pyx_v_capacity;

  /* "wildboar/tree/_ctree.pyx":541
 *         self._node_count = 0
 *         self._capacity = capacity
 *         self._n_labels = n_labels             # <<<<<<<<<<<<<<
 *         self._features = <Feature**> malloc(self._capacity * sizeof(Feature*))
 *         self._thresholds = <double*> malloc(self._capacity * sizeof(double))
 */
  __pyx_v_self->_n_labels = __pyx_v_n_labels;

  /* "wildboar/tree/_ctree.pyx":542
 *         self._capacity = capacity
 *         self._n_labels = n_labels
 *         self._features = <Feature**> malloc(self._capacity * sizeof(Feature*))             # <<<<<<<<<<<<<<
 *         self._thresholds = <double*> malloc(self._capacity * sizeof(double))
 *         self._values = <double*> malloc(self._capacity * self._n_labels * sizeof(double))
 */
  __pyx_v_self->_features = ((struct __pyx_t_8wildboar_9transform_8_feature_Feature **)malloc((__pyx_v_self->_capacity * (sizeof(struct __pyx_t_8wildboar_9transform_8_feature_Feature *)))));

  /* "wildboar/tree/_ctree.pyx":543
 *         self._n_labels = n_labels
 *         self._features = <Feature**> malloc(self._capacity * sizeof(Feature*))
 *         self._thresholds = <double*> malloc(self._capacity * sizeof(double))             # <<<<<<<<<<<<<<
 *         self._values = <double*> malloc(self._capacity * self._n_labels * sizeof(double))
 *         self._left = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))
 */
  __pyx_v_self->_thresholds = ((double *)malloc((__pyx_v_self->_capacity * (sizeof(double)))));

  /* "wildboar/tree/_ctree.pyx":544
 *         self._features = <Feature**> malloc(self._capacity * sizeof(Feature*))
 *         self._thresholds = <double*> malloc(self._capacity * sizeof(double))
 *         self._values = <double*> malloc(self._capacity * self._n_labels * sizeof(double))             # <<<<<<<<<<<<<<
 *         self._left = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))
 *         self._right = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))
 */
  __pyx_v_self->_values = ((double *)malloc(((__pyx_v_self->_capacity * __pyx_v_self->_n_labels) * (sizeof(double)))));

  /* "wildboar/tree/_ctree.pyx":545
 *         self._thresholds = <double*> malloc(self._capacity * sizeof(double))
 *         self._values = <double*> malloc(self._capacity * self._n_labels * sizeof(double))
 *         self._left = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))             # <<<<<<<<<<<<<<
 *         self._right = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))
 *         self._impurity = <double*> malloc(self._capacity * sizeof(double))
 */
  __pyx_v_self->_left = ((Py_ssize_t *)malloc((__pyx_v_self->_capacity * (sizeof(Py_ssize_t)))));

  /* "wildboar/tree/_ctree.pyx":546
 *         self._values = <double*> malloc(self._capacity * self._n_labels * sizeof(double))
 *         self._left = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))
 *         self._right = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))             # <<<<<<<<<<<<<<
 *         self._impurity = <double*> malloc(self._capacity * sizeof(double))
 *         self._n_node_samples = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))
 */
  __pyx_v_self->_right = ((Py_ssize_t *)malloc((__pyx_v_self->_capacity * (sizeof(Py_ssize_t)))));

  /* "wildboar/tree/_ctree.pyx":547
 *         self._left = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))
 *         self._right = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))
 *         self._impurity = <double*> malloc(self._capacity * sizeof(double))             # <<<<<<<<<<<<<<
 *         self._n_node_samples = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))
 *         self._n_weighted_node_samples = <double*> malloc(self._capacity * sizeof(double))
 */
  __pyx_v_self->_impurity = ((double *)malloc((__pyx_v_self->_capacity * (sizeof(double)))));

  /* "wildboar/tree/_ctree.pyx":548
 *         self._right = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))
 *         self._impurity = <double*> malloc(self._capacity * sizeof(double))
 *         self._n_node_samples = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))             # <<<<<<<<<<<<<<
 *         self._n_weighted_node_samples = <double*> malloc(self._capacity * sizeof(double))
 * 
 */
  __pyx_v_self->_n_node_samples = ((Py_ssize_t *)malloc((__pyx_v_self->_capacity * (sizeof(Py_ssize_t)))));

  /* "wildboar/tree/_ctree.pyx":549
 *         self._impurity = <double*> malloc(self._capacity * sizeof(double))
 *         self._n_node_samples = <Py_ssize_t*> malloc(self._capacity * sizeof(Py_ssize_t))
 *         self._n_weighted_node_samples = <double*> malloc(self._capacity * sizeof(double))             # <<<<<<<<<<<<<<
 * 
 *     def __dealloc__(self):
 */
  __pyx_v_self->_n_weighted_node_samples = ((double *)malloc((__pyx_v_self->_capacity * (sizeof(double)))));

  /* "wildboar/tree/_ctree.pyx":532
 *     cdef Py_ssize_t *_n_node_samples
 * 
 *     def __cinit__(             # <<<<<<<<<<<<<<
 *         self,
 *         TreeFeatureEngineer feature_engineer,
 */

  /* function exit code */
  __pyx_r = 0;
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":551
 *         self._n_weighted_node_samples = <double*> malloc(self._capacity * sizeof(double))
 * 
 *     def __dealloc__(self):             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         if self._features != NULL:
 */

/* Python wrapper */
static void __pyx_pw_8wildboar_4tree_6_ctree_4Tree_3__dealloc__(PyObject *__pyx_v_self); /*proto*/
static void __pyx_pw_8wildboar_4tree_6_ctree_4Tree_3__dealloc__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__dealloc__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_pf_8wildboar_4tree_6_ctree_4Tree_2__dealloc__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
}

static void __pyx_pf_8wildboar_4tree_6_ctree_4Tree_2__dealloc__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  Py_ssize_t __pyx_v_i;
  int __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  Py_ssize_t __pyx_t_4;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;

  /* "wildboar/tree/_ctree.pyx":553
 *     def __dealloc__(self):
 *         cdef Py_ssize_t i
 *         if self._features != NULL:             # <<<<<<<<<<<<<<
 *             for i in range(self._node_count):
 *                 if self._features[i] != NULL:
 */
  __pyx_t_1 = (__pyx_v_self->_features != NULL);
  if (__pyx_t_1) {

    /* "wildboar/tree/_ctree.pyx":554
 *         cdef Py_ssize_t i
 *         if self._features != NULL:
 *             for i in range(self._node_count):             # <<<<<<<<<<<<<<
 *                 if self._features[i] != NULL:
 *                     self.feature_engineer.free_persistent_feature(self._features[i])
 */
    __pyx_t_2 = __pyx_v_self->_node_count;
    __pyx_t_3 = __pyx_t_2;
    for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
      __pyx_v_i = __pyx_t_4;

      /* "wildboar/tree/_ctree.pyx":555
 *         if self._features != NULL:
 *             for i in range(self._node_count):
 *                 if self._features[i] != NULL:             # <<<<<<<<<<<<<<
 *                     self.feature_engineer.free_persistent_feature(self._features[i])
 *                     free(self._features[i])
 */
      __pyx_t_1 = ((__pyx_v_self->_features[__pyx_v_i]) != NULL);
      if (__pyx_t_1) {

        /* "wildboar/tree/_ctree.pyx":556
 *             for i in range(self._node_count):
 *                 if self._features[i] != NULL:
 *                     self.feature_engineer.free_persistent_feature(self._features[i])             # <<<<<<<<<<<<<<
 *                     free(self._features[i])
 *             free(self._features)
 */
        ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->free_persistent_feature(__pyx_v_self->feature_engineer, (__pyx_v_self->_features[__pyx_v_i])); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 556, __pyx_L1_error)

        /* "wildboar/tree/_ctree.pyx":557
 *                 if self._features[i] != NULL:
 *                     self.feature_engineer.free_persistent_feature(self._features[i])
 *                     free(self._features[i])             # <<<<<<<<<<<<<<
 *             free(self._features)
 * 
 */
        free((__pyx_v_self->_features[__pyx_v_i]));

        /* "wildboar/tree/_ctree.pyx":555
 *         if self._features != NULL:
 *             for i in range(self._node_count):
 *                 if self._features[i] != NULL:             # <<<<<<<<<<<<<<
 *                     self.feature_engineer.free_persistent_feature(self._features[i])
 *                     free(self._features[i])
 */
      }
    }

    /* "wildboar/tree/_ctree.pyx":558
 *                     self.feature_engineer.free_persistent_feature(self._features[i])
 *                     free(self._features[i])
 *             free(self._features)             # <<<<<<<<<<<<<<
 * 
 *         if self._thresholds != NULL:
 */
    free(__pyx_v_self->_features);

    /* "wildboar/tree/_ctree.pyx":553
 *     def __dealloc__(self):
 *         cdef Py_ssize_t i
 *         if self._features != NULL:             # <<<<<<<<<<<<<<
 *             for i in range(self._node_count):
 *                 if self._features[i] != NULL:
 */
  }

  /* "wildboar/tree/_ctree.pyx":560
 *             free(self._features)
 * 
 *         if self._thresholds != NULL:             # <<<<<<<<<<<<<<
 *             free(self._thresholds)
 * 
 */
  __pyx_t_1 = (__pyx_v_self->_thresholds != NULL);
  if (__pyx_t_1) {

    /* "wildboar/tree/_ctree.pyx":561
 * 
 *         if self._thresholds != NULL:
 *             free(self._thresholds)             # <<<<<<<<<<<<<<
 * 
 *         if self._values != NULL:
 */
    free(__pyx_v_self->_thresholds);

    /* "wildboar/tree/_ctree.pyx":560
 *             free(self._features)
 * 
 *         if self._thresholds != NULL:             # <<<<<<<<<<<<<<
 *             free(self._thresholds)
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":563
 *             free(self._thresholds)
 * 
 *         if self._values != NULL:             # <<<<<<<<<<<<<<
 *             free(self._values)
 * 
 */
  __pyx_t_1 = (__pyx_v_self->_values != NULL);
  if (__pyx_t_1) {

    /* "wildboar/tree/_ctree.pyx":564
 * 
 *         if self._values != NULL:
 *             free(self._values)             # <<<<<<<<<<<<<<
 * 
 *         if self._left != NULL:
 */
    free(__pyx_v_self->_values);

    /* "wildboar/tree/_ctree.pyx":563
 *             free(self._thresholds)
 * 
 *         if self._values != NULL:             # <<<<<<<<<<<<<<
 *             free(self._values)
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":566
 *             free(self._values)
 * 
 *         if self._left != NULL:             # <<<<<<<<<<<<<<
 *             free(self._left)
 * 
 */
  __pyx_t_1 = (__pyx_v_self->_left != NULL);
  if (__pyx_t_1) {

    /* "wildboar/tree/_ctree.pyx":567
 * 
 *         if self._left != NULL:
 *             free(self._left)             # <<<<<<<<<<<<<<
 * 
 *         if self._right != NULL:
 */
    free(__pyx_v_self->_left);

    /* "wildboar/tree/_ctree.pyx":566
 *             free(self._values)
 * 
 *         if self._left != NULL:             # <<<<<<<<<<<<<<
 *             free(self._left)
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":569
 *             free(self._left)
 * 
 *         if self._right != NULL:             # <<<<<<<<<<<<<<
 *             free(self._right)
 * 
 */
  __pyx_t_1 = (__pyx_v_self->_right != NULL);
  if (__pyx_t_1) {

    /* "wildboar/tree/_ctree.pyx":570
 * 
 *         if self._right != NULL:
 *             free(self._right)             # <<<<<<<<<<<<<<
 * 
 *         if self._impurity != NULL:
 */
    free(__pyx_v_self->_right);

    /* "wildboar/tree/_ctree.pyx":569
 *             free(self._left)
 * 
 *         if self._right != NULL:             # <<<<<<<<<<<<<<
 *             free(self._right)
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":572
 *             free(self._right)
 * 
 *         if self._impurity != NULL:             # <<<<<<<<<<<<<<
 *             free(self._impurity)
 * 
 */
  __pyx_t_1 = (__pyx_v_self->_impurity != NULL);
  if (__pyx_t_1) {

    /* "wildboar/tree/_ctree.pyx":573
 * 
 *         if self._impurity != NULL:
 *             free(self._impurity)             # <<<<<<<<<<<<<<
 * 
 *         if self._n_node_samples != NULL:
 */
    free(__pyx_v_self->_impurity);

    /* "wildboar/tree/_ctree.pyx":572
 *             free(self._right)
 * 
 *         if self._impurity != NULL:             # <<<<<<<<<<<<<<
 *             free(self._impurity)
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":575
 *             free(self._impurity)
 * 
 *         if self._n_node_samples != NULL:             # <<<<<<<<<<<<<<
 *             free(self._n_node_samples)
 * 
 */
  __pyx_t_1 = (__pyx_v_self->_n_node_samples != NULL);
  if (__pyx_t_1) {

    /* "wildboar/tree/_ctree.pyx":576
 * 
 *         if self._n_node_samples != NULL:
 *             free(self._n_node_samples)             # <<<<<<<<<<<<<<
 * 
 *         if self._n_weighted_node_samples != NULL:
 */
    free(__pyx_v_self->_n_node_samples);

    /* "wildboar/tree/_ctree.pyx":575
 *             free(self._impurity)
 * 
 *         if self._n_node_samples != NULL:             # <<<<<<<<<<<<<<
 *             free(self._n_node_samples)
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":578
 *             free(self._n_node_samples)
 * 
 *         if self._n_weighted_node_samples != NULL:             # <<<<<<<<<<<<<<
 *             free(self._n_weighted_node_samples)
 * 
 */
  __pyx_t_1 = (__pyx_v_self->_n_weighted_node_samples != NULL);
  if (__pyx_t_1) {

    /* "wildboar/tree/_ctree.pyx":579
 * 
 *         if self._n_weighted_node_samples != NULL:
 *             free(self._n_weighted_node_samples)             # <<<<<<<<<<<<<<
 * 
 *     def __reduce__(self):
 */
    free(__pyx_v_self->_n_weighted_node_samples);

    /* "wildboar/tree/_ctree.pyx":578
 *             free(self._n_node_samples)
 * 
 *         if self._n_weighted_node_samples != NULL:             # <<<<<<<<<<<<<<
 *             free(self._n_weighted_node_samples)
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":551
 *         self._n_weighted_node_samples = <double*> malloc(self._capacity * sizeof(double))
 * 
 *     def __dealloc__(self):             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         if self._features != NULL:
 */

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_WriteUnraisable("wildboar.tree._ctree.Tree.__dealloc__", __pyx_clineno, __pyx_lineno, __pyx_filename, 1, 0);
  __pyx_L0:;
}

/* "wildboar/tree/_ctree.pyx":581
 *             free(self._n_weighted_node_samples)
 * 
 *     def __reduce__(self):             # <<<<<<<<<<<<<<
 *         return _make_tree, (
 *             self.feature_engineer,
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_5__reduce__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_4Tree_5__reduce__ = {"__reduce__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_4Tree_5__reduce__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_5__reduce__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__reduce__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  if (unlikely(__pyx_nargs > 0)) {
    __Pyx_RaiseArgtupleInvalid("__reduce__", 1, 0, 0, __pyx_nargs); return NULL;}
  if (unlikely(__pyx_kwds) && __Pyx_NumKwargs_FASTCALL(__pyx_kwds) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__reduce__", 0))) return NULL;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_4__reduce__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_4__reduce__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  PyObject *__pyx_t_4 = NULL;
  PyObject *__pyx_t_5 = NULL;
  PyObject *__pyx_t_6 = NULL;
  PyObject *__pyx_t_7 = NULL;
  PyObject *__pyx_t_8 = NULL;
  PyObject *__pyx_t_9 = NULL;
  PyObject *__pyx_t_10 = NULL;
  PyObject *__pyx_t_11 = NULL;
  PyObject *__pyx_t_12 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__reduce__", 1);

  /* "wildboar/tree/_ctree.pyx":582
 * 
 *     def __reduce__(self):
 *         return _make_tree, (             # <<<<<<<<<<<<<<
 *             self.feature_engineer,
 *             self._n_labels,
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_make_tree); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 582, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);

  /* "wildboar/tree/_ctree.pyx":584
 *         return _make_tree, (
 *             self.feature_engineer,
 *             self._n_labels,             # <<<<<<<<<<<<<<
 *             self._max_depth,
 *             self.feature,
 */
  __pyx_t_2 = PyInt_FromSsize_t(__pyx_v_self->_n_labels); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 584, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);

  /* "wildboar/tree/_ctree.pyx":585
 *             self.feature_engineer,
 *             self._n_labels,
 *             self._max_depth,             # <<<<<<<<<<<<<<
 *             self.feature,
 *             self.threshold,
 */
  __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_self->_max_depth); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 585, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);

  /* "wildboar/tree/_ctree.pyx":586
 *             self._n_labels,
 *             self._max_depth,
 *             self.feature,             # <<<<<<<<<<<<<<
 *             self.threshold,
 *             self.value,
 */
  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_feature); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 586, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);

  /* "wildboar/tree/_ctree.pyx":587
 *             self._max_depth,
 *             self.feature,
 *             self.threshold,             # <<<<<<<<<<<<<<
 *             self.value,
 *             self.left,
 */
  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_threshold); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 587, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);

  /* "wildboar/tree/_ctree.pyx":588
 *             self.feature,
 *             self.threshold,
 *             self.value,             # <<<<<<<<<<<<<<
 *             self.left,
 *             self.right,
 */
  __pyx_t_6 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_value); if (unlikely(!__pyx_t_6)) __PYX_ERR(0, 588, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_6);

  /* "wildboar/tree/_ctree.pyx":589
 *             self.threshold,
 *             self.value,
 *             self.left,             # <<<<<<<<<<<<<<
 *             self.right,
 *             self.impurity,
 */
  __pyx_t_7 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_left); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 589, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_7);

  /* "wildboar/tree/_ctree.pyx":590
 *             self.value,
 *             self.left,
 *             self.right,             # <<<<<<<<<<<<<<
 *             self.impurity,
 *             self.n_node_samples,
 */
  __pyx_t_8 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_right); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 590, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_8);

  /* "wildboar/tree/_ctree.pyx":591
 *             self.left,
 *             self.right,
 *             self.impurity,             # <<<<<<<<<<<<<<
 *             self.n_node_samples,
 *             self.n_weighted_node_samples,
 */
  __pyx_t_9 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_impurity); if (unlikely(!__pyx_t_9)) __PYX_ERR(0, 591, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_9);

  /* "wildboar/tree/_ctree.pyx":592
 *             self.right,
 *             self.impurity,
 *             self.n_node_samples,             # <<<<<<<<<<<<<<
 *             self.n_weighted_node_samples,
 *         )
 */
  __pyx_t_10 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_n_node_samples); if (unlikely(!__pyx_t_10)) __PYX_ERR(0, 592, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_10);

  /* "wildboar/tree/_ctree.pyx":593
 *             self.impurity,
 *             self.n_node_samples,
 *             self.n_weighted_node_samples,             # <<<<<<<<<<<<<<
 *         )
 * 
 */
  __pyx_t_11 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_n_weighted_node_samples); if (unlikely(!__pyx_t_11)) __PYX_ERR(0, 593, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_11);

  /* "wildboar/tree/_ctree.pyx":583
 *     def __reduce__(self):
 *         return _make_tree, (
 *             self.feature_engineer,             # <<<<<<<<<<<<<<
 *             self._n_labels,
 *             self._max_depth,
 */
  __pyx_t_12 = PyTuple_New(11); if (unlikely(!__pyx_t_12)) __PYX_ERR(0, 583, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_12);
  __Pyx_INCREF((PyObject *)__pyx_v_self->feature_engineer);
  __Pyx_GIVEREF((PyObject *)__pyx_v_self->feature_engineer);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_12, 0, ((PyObject *)__pyx_v_self->feature_engineer))) __PYX_ERR(0, 583, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_2);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_12, 1, __pyx_t_2)) __PYX_ERR(0, 583, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_3);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_12, 2, __pyx_t_3)) __PYX_ERR(0, 583, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_4);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_12, 3, __pyx_t_4)) __PYX_ERR(0, 583, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_5);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_12, 4, __pyx_t_5)) __PYX_ERR(0, 583, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_6);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_12, 5, __pyx_t_6)) __PYX_ERR(0, 583, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_7);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_12, 6, __pyx_t_7)) __PYX_ERR(0, 583, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_8);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_12, 7, __pyx_t_8)) __PYX_ERR(0, 583, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_9);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_12, 8, __pyx_t_9)) __PYX_ERR(0, 583, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_10);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_12, 9, __pyx_t_10)) __PYX_ERR(0, 583, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_11);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_12, 10, __pyx_t_11)) __PYX_ERR(0, 583, __pyx_L1_error);
  __pyx_t_2 = 0;
  __pyx_t_3 = 0;
  __pyx_t_4 = 0;
  __pyx_t_5 = 0;
  __pyx_t_6 = 0;
  __pyx_t_7 = 0;
  __pyx_t_8 = 0;
  __pyx_t_9 = 0;
  __pyx_t_10 = 0;
  __pyx_t_11 = 0;

  /* "wildboar/tree/_ctree.pyx":582
 * 
 *     def __reduce__(self):
 *         return _make_tree, (             # <<<<<<<<<<<<<<
 *             self.feature_engineer,
 *             self._n_labels,
 */
  __pyx_t_11 = PyTuple_New(2); if (unlikely(!__pyx_t_11)) __PYX_ERR(0, 582, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_11);
  __Pyx_GIVEREF(__pyx_t_1);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_11, 0, __pyx_t_1)) __PYX_ERR(0, 582, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_12);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_11, 1, __pyx_t_12)) __PYX_ERR(0, 582, __pyx_L1_error);
  __pyx_t_1 = 0;
  __pyx_t_12 = 0;
  __pyx_r = __pyx_t_11;
  __pyx_t_11 = 0;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":581
 *             free(self._n_weighted_node_samples)
 * 
 *     def __reduce__(self):             # <<<<<<<<<<<<<<
 *         return _make_tree, (
 *             self.feature_engineer,
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_XDECREF(__pyx_t_5);
  __Pyx_XDECREF(__pyx_t_6);
  __Pyx_XDECREF(__pyx_t_7);
  __Pyx_XDECREF(__pyx_t_8);
  __Pyx_XDECREF(__pyx_t_9);
  __Pyx_XDECREF(__pyx_t_10);
  __Pyx_XDECREF(__pyx_t_11);
  __Pyx_XDECREF(__pyx_t_12);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.__reduce__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":596
 *         )
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def max_depth(self):
 *         return self._max_depth
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_9max_depth_1__get__(PyObject *__pyx_v_self); /*proto*/
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_9max_depth_1__get__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_9max_depth___get__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_9max_depth___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__get__", 1);

  /* "wildboar/tree/_ctree.pyx":598
 *     @property
 *     def max_depth(self):
 *         return self._max_depth             # <<<<<<<<<<<<<<
 * 
 *     @property
 */
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = PyInt_FromSsize_t(__pyx_v_self->_max_depth); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 598, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_r = __pyx_t_1;
  __pyx_t_1 = 0;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":596
 *         )
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def max_depth(self):
 *         return self._max_depth
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.max_depth.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":600
 *         return self._max_depth
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def value(self):
 *         cdef np.ndarray arr = np.empty(self._node_count * self._n_labels, dtype=float)
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_5value_1__get__(PyObject *__pyx_v_self); /*proto*/
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_5value_1__get__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_5value___get__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_5value___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  PyArrayObject *__pyx_v_arr = 0;
  Py_ssize_t __pyx_v_i;
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  PyObject *__pyx_t_4 = NULL;
  Py_ssize_t __pyx_t_5;
  Py_ssize_t __pyx_t_6;
  Py_ssize_t __pyx_t_7;
  PyObject *__pyx_t_8 = NULL;
  int __pyx_t_9;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__get__", 1);

  /* "wildboar/tree/_ctree.pyx":602
 *     @property
 *     def value(self):
 *         cdef np.ndarray arr = np.empty(self._node_count * self._n_labels, dtype=float)             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         for i in range(self._n_labels * self._node_count):
 */
  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 602, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_empty); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 602, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyInt_FromSsize_t((__pyx_v_self->_node_count * __pyx_v_self->_n_labels)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 602, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 602, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_GIVEREF(__pyx_t_1);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1)) __PYX_ERR(0, 602, __pyx_L1_error);
  __pyx_t_1 = 0;
  __pyx_t_1 = __Pyx_PyDict_NewPresized(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 602, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_dtype, ((PyObject *)(&PyFloat_Type))) < 0) __PYX_ERR(0, 602, __pyx_L1_error)
  __pyx_t_4 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_3, __pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 602, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (!(likely(((__pyx_t_4) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_4, __pyx_ptype_5numpy_ndarray))))) __PYX_ERR(0, 602, __pyx_L1_error)
  __pyx_v_arr = ((PyArrayObject *)__pyx_t_4);
  __pyx_t_4 = 0;

  /* "wildboar/tree/_ctree.pyx":604
 *         cdef np.ndarray arr = np.empty(self._node_count * self._n_labels, dtype=float)
 *         cdef Py_ssize_t i
 *         for i in range(self._n_labels * self._node_count):             # <<<<<<<<<<<<<<
 *             arr[i] = self._values[i]
 *         return arr.reshape(self._node_count, self._n_labels)
 */
  __pyx_t_5 = (__pyx_v_self->_n_labels * __pyx_v_self->_node_count);
  __pyx_t_6 = __pyx_t_5;
  for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
    __pyx_v_i = __pyx_t_7;

    /* "wildboar/tree/_ctree.pyx":605
 *         cdef Py_ssize_t i
 *         for i in range(self._n_labels * self._node_count):
 *             arr[i] = self._values[i]             # <<<<<<<<<<<<<<
 *         return arr.reshape(self._node_count, self._n_labels)
 * 
 */
    __pyx_t_4 = PyFloat_FromDouble((__pyx_v_self->_values[__pyx_v_i])); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 605, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    if (unlikely((__Pyx_SetItemInt(((PyObject *)__pyx_v_arr), __pyx_v_i, __pyx_t_4, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0) < 0))) __PYX_ERR(0, 605, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
  }

  /* "wildboar/tree/_ctree.pyx":606
 *         for i in range(self._n_labels * self._node_count):
 *             arr[i] = self._values[i]
 *         return arr.reshape(self._node_count, self._n_labels)             # <<<<<<<<<<<<<<
 * 
 *     @property
 */
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_arr), __pyx_n_s_reshape); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 606, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_self->_node_count); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 606, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __pyx_t_2 = PyInt_FromSsize_t(__pyx_v_self->_n_labels); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 606, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __pyx_t_8 = NULL;
  __pyx_t_9 = 0;
  #if CYTHON_UNPACK_METHODS
  if (likely(PyMethod_Check(__pyx_t_1))) {
    __pyx_t_8 = PyMethod_GET_SELF(__pyx_t_1);
    if (likely(__pyx_t_8)) {
      PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_1);
      __Pyx_INCREF(__pyx_t_8);
      __Pyx_INCREF(function);
      __Pyx_DECREF_SET(__pyx_t_1, function);
      __pyx_t_9 = 1;
    }
  }
  #endif
  {
    PyObject *__pyx_callargs[3] = {__pyx_t_8, __pyx_t_3, __pyx_t_2};
    __pyx_t_4 = __Pyx_PyObject_FastCall(__pyx_t_1, __pyx_callargs+1-__pyx_t_9, 2+__pyx_t_9);
    __Pyx_XDECREF(__pyx_t_8); __pyx_t_8 = 0;
    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
    if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 606, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  }
  __pyx_r = __pyx_t_4;
  __pyx_t_4 = 0;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":600
 *         return self._max_depth
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def value(self):
 *         cdef np.ndarray arr = np.empty(self._node_count * self._n_labels, dtype=float)
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_XDECREF(__pyx_t_8);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.value.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XDECREF((PyObject *)__pyx_v_arr);
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":608
 *         return arr.reshape(self._node_count, self._n_labels)
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def feature(self):
 *         cdef Py_ssize_t i, j
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_7feature_1__get__(PyObject *__pyx_v_self); /*proto*/
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_7feature_1__get__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_7feature___get__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_7feature___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  Py_ssize_t __pyx_v_i;
  struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature;
  PyObject *__pyx_v_object = 0;
  PyObject *__pyx_v_ret = 0;
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  Py_ssize_t __pyx_t_4;
  int __pyx_t_5;
  int __pyx_t_6;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__get__", 1);

  /* "wildboar/tree/_ctree.pyx":613
 *         cdef Feature* feature
 *         cdef object object
 *         cdef list ret = []             # <<<<<<<<<<<<<<
 *         for i in range(self._node_count):
 *             feature = self._features[i]
 */
  __pyx_t_1 = PyList_New(0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 613, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_v_ret = ((PyObject*)__pyx_t_1);
  __pyx_t_1 = 0;

  /* "wildboar/tree/_ctree.pyx":614
 *         cdef object object
 *         cdef list ret = []
 *         for i in range(self._node_count):             # <<<<<<<<<<<<<<
 *             feature = self._features[i]
 *             if feature != NULL:
 */
  __pyx_t_2 = __pyx_v_self->_node_count;
  __pyx_t_3 = __pyx_t_2;
  for (__pyx_t_4 = 0; __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
    __pyx_v_i = __pyx_t_4;

    /* "wildboar/tree/_ctree.pyx":615
 *         cdef list ret = []
 *         for i in range(self._node_count):
 *             feature = self._features[i]             # <<<<<<<<<<<<<<
 *             if feature != NULL:
 *                 object = self.feature_engineer.persistent_feature_to_object(feature)
 */
    __pyx_v_feature = (__pyx_v_self->_features[__pyx_v_i]);

    /* "wildboar/tree/_ctree.pyx":616
 *         for i in range(self._node_count):
 *             feature = self._features[i]
 *             if feature != NULL:             # <<<<<<<<<<<<<<
 *                 object = self.feature_engineer.persistent_feature_to_object(feature)
 *                 ret.append(object)
 */
    __pyx_t_5 = (__pyx_v_feature != NULL);
    if (__pyx_t_5) {

      /* "wildboar/tree/_ctree.pyx":617
 *             feature = self._features[i]
 *             if feature != NULL:
 *                 object = self.feature_engineer.persistent_feature_to_object(feature)             # <<<<<<<<<<<<<<
 *                 ret.append(object)
 *             else:
 */
      __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->persistent_feature_to_object(__pyx_v_self->feature_engineer, __pyx_v_feature); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 617, __pyx_L1_error)
      __Pyx_GOTREF(__pyx_t_1);
      __Pyx_XDECREF_SET(__pyx_v_object, __pyx_t_1);
      __pyx_t_1 = 0;

      /* "wildboar/tree/_ctree.pyx":618
 *             if feature != NULL:
 *                 object = self.feature_engineer.persistent_feature_to_object(feature)
 *                 ret.append(object)             # <<<<<<<<<<<<<<
 *             else:
 *                 ret.append(None)
 */
      __pyx_t_6 = __Pyx_PyList_Append(__pyx_v_ret, __pyx_v_object); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(0, 618, __pyx_L1_error)

      /* "wildboar/tree/_ctree.pyx":616
 *         for i in range(self._node_count):
 *             feature = self._features[i]
 *             if feature != NULL:             # <<<<<<<<<<<<<<
 *                 object = self.feature_engineer.persistent_feature_to_object(feature)
 *                 ret.append(object)
 */
      goto __pyx_L5;
    }

    /* "wildboar/tree/_ctree.pyx":620
 *                 ret.append(object)
 *             else:
 *                 ret.append(None)             # <<<<<<<<<<<<<<
 *         return ret
 * 
 */
    /*else*/ {
      __pyx_t_6 = __Pyx_PyList_Append(__pyx_v_ret, Py_None); if (unlikely(__pyx_t_6 == ((int)-1))) __PYX_ERR(0, 620, __pyx_L1_error)
    }
    __pyx_L5:;
  }

  /* "wildboar/tree/_ctree.pyx":621
 *             else:
 *                 ret.append(None)
 *         return ret             # <<<<<<<<<<<<<<
 * 
 *     @property
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_INCREF(__pyx_v_ret);
  __pyx_r = __pyx_v_ret;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":608
 *         return arr.reshape(self._node_count, self._n_labels)
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def feature(self):
 *         cdef Py_ssize_t i, j
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.feature.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XDECREF(__pyx_v_object);
  __Pyx_XDECREF(__pyx_v_ret);
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":623
 *         return ret
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def n_node_samples(self):
 *         cdef np.ndarray arr = np.zeros(self._node_count, dtype=np.intp)
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_14n_node_samples_1__get__(PyObject *__pyx_v_self); /*proto*/
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_14n_node_samples_1__get__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_14n_node_samples___get__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_14n_node_samples___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  PyArrayObject *__pyx_v_arr = 0;
  Py_ssize_t __pyx_v_i;
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  PyObject *__pyx_t_4 = NULL;
  PyObject *__pyx_t_5 = NULL;
  Py_ssize_t __pyx_t_6;
  Py_ssize_t __pyx_t_7;
  Py_ssize_t __pyx_t_8;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__get__", 1);

  /* "wildboar/tree/_ctree.pyx":625
 *     @property
 *     def n_node_samples(self):
 *         cdef np.ndarray arr = np.zeros(self._node_count, dtype=np.intp)             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):
 */
  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 625, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_zeros); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 625, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyInt_FromSsize_t(__pyx_v_self->_node_count); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 625, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 625, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_GIVEREF(__pyx_t_1);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1)) __PYX_ERR(0, 625, __pyx_L1_error);
  __pyx_t_1 = 0;
  __pyx_t_1 = __Pyx_PyDict_NewPresized(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 625, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 625, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_intp); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 625, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);
  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_dtype, __pyx_t_5) < 0) __PYX_ERR(0, 625, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
  __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_3, __pyx_t_1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 625, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (!(likely(((__pyx_t_5) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_5, __pyx_ptype_5numpy_ndarray))))) __PYX_ERR(0, 625, __pyx_L1_error)
  __pyx_v_arr = ((PyArrayObject *)__pyx_t_5);
  __pyx_t_5 = 0;

  /* "wildboar/tree/_ctree.pyx":627
 *         cdef np.ndarray arr = np.zeros(self._node_count, dtype=np.intp)
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):             # <<<<<<<<<<<<<<
 *             arr[i] = self._n_node_samples[i]
 *         return arr
 */
  __pyx_t_6 = __pyx_v_self->_node_count;
  __pyx_t_7 = __pyx_t_6;
  for (__pyx_t_8 = 0; __pyx_t_8 < __pyx_t_7; __pyx_t_8+=1) {
    __pyx_v_i = __pyx_t_8;

    /* "wildboar/tree/_ctree.pyx":628
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):
 *             arr[i] = self._n_node_samples[i]             # <<<<<<<<<<<<<<
 *         return arr
 * 
 */
    __pyx_t_5 = PyInt_FromSsize_t((__pyx_v_self->_n_node_samples[__pyx_v_i])); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 628, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_5);
    if (unlikely((__Pyx_SetItemInt(((PyObject *)__pyx_v_arr), __pyx_v_i, __pyx_t_5, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0) < 0))) __PYX_ERR(0, 628, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
  }

  /* "wildboar/tree/_ctree.pyx":629
 *         for i in range(self._node_count):
 *             arr[i] = self._n_node_samples[i]
 *         return arr             # <<<<<<<<<<<<<<
 * 
 *     @property
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_INCREF((PyObject *)__pyx_v_arr);
  __pyx_r = ((PyObject *)__pyx_v_arr);
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":623
 *         return ret
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def n_node_samples(self):
 *         cdef np.ndarray arr = np.zeros(self._node_count, dtype=np.intp)
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_XDECREF(__pyx_t_5);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.n_node_samples.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XDECREF((PyObject *)__pyx_v_arr);
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":631
 *         return arr
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def n_weighted_node_samples(self):
 *         cdef np.ndarray arr = np.zeros(self._node_count, dtype=float)
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_23n_weighted_node_samples_1__get__(PyObject *__pyx_v_self); /*proto*/
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_23n_weighted_node_samples_1__get__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_23n_weighted_node_samples___get__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_23n_weighted_node_samples___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  PyArrayObject *__pyx_v_arr = 0;
  Py_ssize_t __pyx_v_i;
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  PyObject *__pyx_t_4 = NULL;
  Py_ssize_t __pyx_t_5;
  Py_ssize_t __pyx_t_6;
  Py_ssize_t __pyx_t_7;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__get__", 1);

  /* "wildboar/tree/_ctree.pyx":633
 *     @property
 *     def n_weighted_node_samples(self):
 *         cdef np.ndarray arr = np.zeros(self._node_count, dtype=float)             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):
 */
  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 633, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_zeros); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 633, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyInt_FromSsize_t(__pyx_v_self->_node_count); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 633, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 633, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_GIVEREF(__pyx_t_1);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1)) __PYX_ERR(0, 633, __pyx_L1_error);
  __pyx_t_1 = 0;
  __pyx_t_1 = __Pyx_PyDict_NewPresized(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 633, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_dtype, ((PyObject *)(&PyFloat_Type))) < 0) __PYX_ERR(0, 633, __pyx_L1_error)
  __pyx_t_4 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_3, __pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 633, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (!(likely(((__pyx_t_4) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_4, __pyx_ptype_5numpy_ndarray))))) __PYX_ERR(0, 633, __pyx_L1_error)
  __pyx_v_arr = ((PyArrayObject *)__pyx_t_4);
  __pyx_t_4 = 0;

  /* "wildboar/tree/_ctree.pyx":635
 *         cdef np.ndarray arr = np.zeros(self._node_count, dtype=float)
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):             # <<<<<<<<<<<<<<
 *             arr[i] = self._n_weighted_node_samples[i]
 *         return arr
 */
  __pyx_t_5 = __pyx_v_self->_node_count;
  __pyx_t_6 = __pyx_t_5;
  for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
    __pyx_v_i = __pyx_t_7;

    /* "wildboar/tree/_ctree.pyx":636
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):
 *             arr[i] = self._n_weighted_node_samples[i]             # <<<<<<<<<<<<<<
 *         return arr
 * 
 */
    __pyx_t_4 = PyFloat_FromDouble((__pyx_v_self->_n_weighted_node_samples[__pyx_v_i])); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 636, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    if (unlikely((__Pyx_SetItemInt(((PyObject *)__pyx_v_arr), __pyx_v_i, __pyx_t_4, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0) < 0))) __PYX_ERR(0, 636, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
  }

  /* "wildboar/tree/_ctree.pyx":637
 *         for i in range(self._node_count):
 *             arr[i] = self._n_weighted_node_samples[i]
 *         return arr             # <<<<<<<<<<<<<<
 * 
 *     @property
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_INCREF((PyObject *)__pyx_v_arr);
  __pyx_r = ((PyObject *)__pyx_v_arr);
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":631
 *         return arr
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def n_weighted_node_samples(self):
 *         cdef np.ndarray arr = np.zeros(self._node_count, dtype=float)
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.n_weighted_node_samples.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XDECREF((PyObject *)__pyx_v_arr);
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":639
 *         return arr
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def left(self):
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=np.intp)
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_4left_1__get__(PyObject *__pyx_v_self); /*proto*/
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_4left_1__get__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_4left___get__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_4left___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  PyArrayObject *__pyx_v_arr = 0;
  Py_ssize_t __pyx_v_i;
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  PyObject *__pyx_t_4 = NULL;
  PyObject *__pyx_t_5 = NULL;
  Py_ssize_t __pyx_t_6;
  Py_ssize_t __pyx_t_7;
  Py_ssize_t __pyx_t_8;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__get__", 1);

  /* "wildboar/tree/_ctree.pyx":641
 *     @property
 *     def left(self):
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=np.intp)             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):
 */
  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 641, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_empty); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 641, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyInt_FromSsize_t(__pyx_v_self->_node_count); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 641, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 641, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_GIVEREF(__pyx_t_1);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1)) __PYX_ERR(0, 641, __pyx_L1_error);
  __pyx_t_1 = 0;
  __pyx_t_1 = __Pyx_PyDict_NewPresized(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 641, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 641, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_intp); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 641, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);
  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_dtype, __pyx_t_5) < 0) __PYX_ERR(0, 641, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
  __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_3, __pyx_t_1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 641, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (!(likely(((__pyx_t_5) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_5, __pyx_ptype_5numpy_ndarray))))) __PYX_ERR(0, 641, __pyx_L1_error)
  __pyx_v_arr = ((PyArrayObject *)__pyx_t_5);
  __pyx_t_5 = 0;

  /* "wildboar/tree/_ctree.pyx":643
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=np.intp)
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):             # <<<<<<<<<<<<<<
 *             arr[i] = self._left[i]
 *         return arr
 */
  __pyx_t_6 = __pyx_v_self->_node_count;
  __pyx_t_7 = __pyx_t_6;
  for (__pyx_t_8 = 0; __pyx_t_8 < __pyx_t_7; __pyx_t_8+=1) {
    __pyx_v_i = __pyx_t_8;

    /* "wildboar/tree/_ctree.pyx":644
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):
 *             arr[i] = self._left[i]             # <<<<<<<<<<<<<<
 *         return arr
 * 
 */
    __pyx_t_5 = PyInt_FromSsize_t((__pyx_v_self->_left[__pyx_v_i])); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 644, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_5);
    if (unlikely((__Pyx_SetItemInt(((PyObject *)__pyx_v_arr), __pyx_v_i, __pyx_t_5, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0) < 0))) __PYX_ERR(0, 644, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
  }

  /* "wildboar/tree/_ctree.pyx":645
 *         for i in range(self._node_count):
 *             arr[i] = self._left[i]
 *         return arr             # <<<<<<<<<<<<<<
 * 
 *     @property
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_INCREF((PyObject *)__pyx_v_arr);
  __pyx_r = ((PyObject *)__pyx_v_arr);
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":639
 *         return arr
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def left(self):
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=np.intp)
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_XDECREF(__pyx_t_5);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.left.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XDECREF((PyObject *)__pyx_v_arr);
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":647
 *         return arr
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def right(self):
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=np.intp)
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_5right_1__get__(PyObject *__pyx_v_self); /*proto*/
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_5right_1__get__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_5right___get__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_5right___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  PyArrayObject *__pyx_v_arr = 0;
  Py_ssize_t __pyx_v_i;
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  PyObject *__pyx_t_4 = NULL;
  PyObject *__pyx_t_5 = NULL;
  Py_ssize_t __pyx_t_6;
  Py_ssize_t __pyx_t_7;
  Py_ssize_t __pyx_t_8;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__get__", 1);

  /* "wildboar/tree/_ctree.pyx":649
 *     @property
 *     def right(self):
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=np.intp)             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):
 */
  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 649, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_empty); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 649, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyInt_FromSsize_t(__pyx_v_self->_node_count); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 649, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 649, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_GIVEREF(__pyx_t_1);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1)) __PYX_ERR(0, 649, __pyx_L1_error);
  __pyx_t_1 = 0;
  __pyx_t_1 = __Pyx_PyDict_NewPresized(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 649, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_np); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 649, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(__pyx_t_4, __pyx_n_s_intp); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 649, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);
  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_dtype, __pyx_t_5) < 0) __PYX_ERR(0, 649, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
  __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_3, __pyx_t_1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 649, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (!(likely(((__pyx_t_5) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_5, __pyx_ptype_5numpy_ndarray))))) __PYX_ERR(0, 649, __pyx_L1_error)
  __pyx_v_arr = ((PyArrayObject *)__pyx_t_5);
  __pyx_t_5 = 0;

  /* "wildboar/tree/_ctree.pyx":651
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=np.intp)
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):             # <<<<<<<<<<<<<<
 *             arr[i] = self._right[i]
 *         return arr
 */
  __pyx_t_6 = __pyx_v_self->_node_count;
  __pyx_t_7 = __pyx_t_6;
  for (__pyx_t_8 = 0; __pyx_t_8 < __pyx_t_7; __pyx_t_8+=1) {
    __pyx_v_i = __pyx_t_8;

    /* "wildboar/tree/_ctree.pyx":652
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):
 *             arr[i] = self._right[i]             # <<<<<<<<<<<<<<
 *         return arr
 * 
 */
    __pyx_t_5 = PyInt_FromSsize_t((__pyx_v_self->_right[__pyx_v_i])); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 652, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_5);
    if (unlikely((__Pyx_SetItemInt(((PyObject *)__pyx_v_arr), __pyx_v_i, __pyx_t_5, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0) < 0))) __PYX_ERR(0, 652, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
  }

  /* "wildboar/tree/_ctree.pyx":653
 *         for i in range(self._node_count):
 *             arr[i] = self._right[i]
 *         return arr             # <<<<<<<<<<<<<<
 * 
 *     @property
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_INCREF((PyObject *)__pyx_v_arr);
  __pyx_r = ((PyObject *)__pyx_v_arr);
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":647
 *         return arr
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def right(self):
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=np.intp)
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_XDECREF(__pyx_t_5);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.right.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XDECREF((PyObject *)__pyx_v_arr);
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":655
 *         return arr
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def threshold(self):
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=float)
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_9threshold_1__get__(PyObject *__pyx_v_self); /*proto*/
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_9threshold_1__get__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_9threshold___get__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_9threshold___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  PyArrayObject *__pyx_v_arr = 0;
  Py_ssize_t __pyx_v_i;
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  PyObject *__pyx_t_4 = NULL;
  Py_ssize_t __pyx_t_5;
  Py_ssize_t __pyx_t_6;
  Py_ssize_t __pyx_t_7;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__get__", 1);

  /* "wildboar/tree/_ctree.pyx":657
 *     @property
 *     def threshold(self):
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=float)             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):
 */
  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 657, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_empty); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 657, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyInt_FromSsize_t(__pyx_v_self->_node_count); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 657, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 657, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_GIVEREF(__pyx_t_1);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1)) __PYX_ERR(0, 657, __pyx_L1_error);
  __pyx_t_1 = 0;
  __pyx_t_1 = __Pyx_PyDict_NewPresized(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 657, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_dtype, ((PyObject *)(&PyFloat_Type))) < 0) __PYX_ERR(0, 657, __pyx_L1_error)
  __pyx_t_4 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_3, __pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 657, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (!(likely(((__pyx_t_4) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_4, __pyx_ptype_5numpy_ndarray))))) __PYX_ERR(0, 657, __pyx_L1_error)
  __pyx_v_arr = ((PyArrayObject *)__pyx_t_4);
  __pyx_t_4 = 0;

  /* "wildboar/tree/_ctree.pyx":659
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=float)
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):             # <<<<<<<<<<<<<<
 *             arr[i] = self._thresholds[i]
 *         return arr
 */
  __pyx_t_5 = __pyx_v_self->_node_count;
  __pyx_t_6 = __pyx_t_5;
  for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
    __pyx_v_i = __pyx_t_7;

    /* "wildboar/tree/_ctree.pyx":660
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):
 *             arr[i] = self._thresholds[i]             # <<<<<<<<<<<<<<
 *         return arr
 * 
 */
    __pyx_t_4 = PyFloat_FromDouble((__pyx_v_self->_thresholds[__pyx_v_i])); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 660, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    if (unlikely((__Pyx_SetItemInt(((PyObject *)__pyx_v_arr), __pyx_v_i, __pyx_t_4, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0) < 0))) __PYX_ERR(0, 660, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
  }

  /* "wildboar/tree/_ctree.pyx":661
 *         for i in range(self._node_count):
 *             arr[i] = self._thresholds[i]
 *         return arr             # <<<<<<<<<<<<<<
 * 
 *     @property
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_INCREF((PyObject *)__pyx_v_arr);
  __pyx_r = ((PyObject *)__pyx_v_arr);
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":655
 *         return arr
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def threshold(self):
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=float)
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.threshold.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XDECREF((PyObject *)__pyx_v_arr);
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":663
 *         return arr
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def impurity(self):
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=float)
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_8impurity_1__get__(PyObject *__pyx_v_self); /*proto*/
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_8impurity_1__get__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_8impurity___get__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_8impurity___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  PyArrayObject *__pyx_v_arr = 0;
  Py_ssize_t __pyx_v_i;
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  PyObject *__pyx_t_4 = NULL;
  Py_ssize_t __pyx_t_5;
  Py_ssize_t __pyx_t_6;
  Py_ssize_t __pyx_t_7;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__get__", 1);

  /* "wildboar/tree/_ctree.pyx":665
 *     @property
 *     def impurity(self):
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=float)             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):
 */
  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 665, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_empty); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 665, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyInt_FromSsize_t(__pyx_v_self->_node_count); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 665, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 665, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_GIVEREF(__pyx_t_1);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1)) __PYX_ERR(0, 665, __pyx_L1_error);
  __pyx_t_1 = 0;
  __pyx_t_1 = __Pyx_PyDict_NewPresized(1); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 665, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_dtype, ((PyObject *)(&PyFloat_Type))) < 0) __PYX_ERR(0, 665, __pyx_L1_error)
  __pyx_t_4 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_3, __pyx_t_1); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 665, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (!(likely(((__pyx_t_4) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_4, __pyx_ptype_5numpy_ndarray))))) __PYX_ERR(0, 665, __pyx_L1_error)
  __pyx_v_arr = ((PyArrayObject *)__pyx_t_4);
  __pyx_t_4 = 0;

  /* "wildboar/tree/_ctree.pyx":667
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=float)
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):             # <<<<<<<<<<<<<<
 *             arr[i] = self._impurity[i]
 *         return arr
 */
  __pyx_t_5 = __pyx_v_self->_node_count;
  __pyx_t_6 = __pyx_t_5;
  for (__pyx_t_7 = 0; __pyx_t_7 < __pyx_t_6; __pyx_t_7+=1) {
    __pyx_v_i = __pyx_t_7;

    /* "wildboar/tree/_ctree.pyx":668
 *         cdef Py_ssize_t i
 *         for i in range(self._node_count):
 *             arr[i] = self._impurity[i]             # <<<<<<<<<<<<<<
 *         return arr
 * 
 */
    __pyx_t_4 = PyFloat_FromDouble((__pyx_v_self->_impurity[__pyx_v_i])); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 668, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    if (unlikely((__Pyx_SetItemInt(((PyObject *)__pyx_v_arr), __pyx_v_i, __pyx_t_4, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0) < 0))) __PYX_ERR(0, 668, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
  }

  /* "wildboar/tree/_ctree.pyx":669
 *         for i in range(self._node_count):
 *             arr[i] = self._impurity[i]
 *         return arr             # <<<<<<<<<<<<<<
 * 
 *     def predict(self, object X):
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_INCREF((PyObject *)__pyx_v_arr);
  __pyx_r = ((PyObject *)__pyx_v_arr);
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":663
 *         return arr
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def impurity(self):
 *         cdef np.ndarray arr = np.empty(self._node_count, dtype=float)
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.impurity.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XDECREF((PyObject *)__pyx_v_arr);
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":671
 *         return arr
 * 
 *     def predict(self, object X):             # <<<<<<<<<<<<<<
 *         cdef np.ndarray apply = self.apply(X)
 *         cdef np.ndarray predict = np.take(self.value, apply, axis=0, mode="clip")
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_7predict(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_4Tree_7predict = {"predict", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_4Tree_7predict, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_7predict(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  PyObject *__pyx_v_X = 0;
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("predict (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_X,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_FASTCALL(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_X)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 671, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "predict") < 0)) __PYX_ERR(0, 671, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
    }
    __pyx_v_X = values[0];
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("predict", 1, 1, 1, __pyx_nargs); __PYX_ERR(0, 671, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.predict", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return NULL;
  __pyx_L4_argument_unpacking_done:;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_6predict(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self), __pyx_v_X);

  /* function exit code */
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_6predict(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, PyObject *__pyx_v_X) {
  PyArrayObject *__pyx_v_apply = 0;
  PyArrayObject *__pyx_v_predict = 0;
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  int __pyx_t_4;
  PyObject *__pyx_t_5 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("predict", 1);

  /* "wildboar/tree/_ctree.pyx":672
 * 
 *     def predict(self, object X):
 *         cdef np.ndarray apply = self.apply(X)             # <<<<<<<<<<<<<<
 *         cdef np.ndarray predict = np.take(self.value, apply, axis=0, mode="clip")
 *         #if self._n_labels == 1:
 */
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_apply); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 672, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __pyx_t_3 = NULL;
  __pyx_t_4 = 0;
  #if CYTHON_UNPACK_METHODS
  if (likely(PyMethod_Check(__pyx_t_2))) {
    __pyx_t_3 = PyMethod_GET_SELF(__pyx_t_2);
    if (likely(__pyx_t_3)) {
      PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_2);
      __Pyx_INCREF(__pyx_t_3);
      __Pyx_INCREF(function);
      __Pyx_DECREF_SET(__pyx_t_2, function);
      __pyx_t_4 = 1;
    }
  }
  #endif
  {
    PyObject *__pyx_callargs[2] = {__pyx_t_3, __pyx_v_X};
    __pyx_t_1 = __Pyx_PyObject_FastCall(__pyx_t_2, __pyx_callargs+1-__pyx_t_4, 1+__pyx_t_4);
    __Pyx_XDECREF(__pyx_t_3); __pyx_t_3 = 0;
    if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 672, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_1);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  }
  if (!(likely(((__pyx_t_1) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_1, __pyx_ptype_5numpy_ndarray))))) __PYX_ERR(0, 672, __pyx_L1_error)
  __pyx_v_apply = ((PyArrayObject *)__pyx_t_1);
  __pyx_t_1 = 0;

  /* "wildboar/tree/_ctree.pyx":673
 *     def predict(self, object X):
 *         cdef np.ndarray apply = self.apply(X)
 *         cdef np.ndarray predict = np.take(self.value, apply, axis=0, mode="clip")             # <<<<<<<<<<<<<<
 *         #if self._n_labels == 1:
 *         #    predict = predict.reshape(X.shape[0])
 */
  __Pyx_GetModuleGlobalName(__pyx_t_1, __pyx_n_s_np); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 673, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_t_1, __pyx_n_s_take); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 673, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_value); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 673, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_t_3 = PyTuple_New(2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 673, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_GIVEREF(__pyx_t_1);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_1)) __PYX_ERR(0, 673, __pyx_L1_error);
  __Pyx_INCREF((PyObject *)__pyx_v_apply);
  __Pyx_GIVEREF((PyObject *)__pyx_v_apply);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 1, ((PyObject *)__pyx_v_apply))) __PYX_ERR(0, 673, __pyx_L1_error);
  __pyx_t_1 = 0;
  __pyx_t_1 = __Pyx_PyDict_NewPresized(2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 673, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_axis, __pyx_int_0) < 0) __PYX_ERR(0, 673, __pyx_L1_error)
  if (PyDict_SetItem(__pyx_t_1, __pyx_n_s_mode, __pyx_n_u_clip) < 0) __PYX_ERR(0, 673, __pyx_L1_error)
  __pyx_t_5 = __Pyx_PyObject_Call(__pyx_t_2, __pyx_t_3, __pyx_t_1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 673, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (!(likely(((__pyx_t_5) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_5, __pyx_ptype_5numpy_ndarray))))) __PYX_ERR(0, 673, __pyx_L1_error)
  __pyx_v_predict = ((PyArrayObject *)__pyx_t_5);
  __pyx_t_5 = 0;

  /* "wildboar/tree/_ctree.pyx":676
 *         #if self._n_labels == 1:
 *         #    predict = predict.reshape(X.shape[0])
 *         return predict             # <<<<<<<<<<<<<<
 * 
 *     def apply(self, object X):
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_INCREF((PyObject *)__pyx_v_predict);
  __pyx_r = ((PyObject *)__pyx_v_predict);
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":671
 *         return arr
 * 
 *     def predict(self, object X):             # <<<<<<<<<<<<<<
 *         cdef np.ndarray apply = self.apply(X)
 *         cdef np.ndarray predict = np.take(self.value, apply, axis=0, mode="clip")
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_5);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.predict", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XDECREF((PyObject *)__pyx_v_apply);
  __Pyx_XDECREF((PyObject *)__pyx_v_predict);
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":678
 *         return predict
 * 
 *     def apply(self, object X):             # <<<<<<<<<<<<<<
 *         if not isinstance(X, np.ndarray):
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_9apply(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_4Tree_9apply = {"apply", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_4Tree_9apply, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_9apply(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  PyObject *__pyx_v_X = 0;
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("apply (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_X,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_FASTCALL(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_X)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 678, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "apply") < 0)) __PYX_ERR(0, 678, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
    }
    __pyx_v_X = values[0];
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("apply", 1, 1, 1, __pyx_nargs); __PYX_ERR(0, 678, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.apply", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return NULL;
  __pyx_L4_argument_unpacking_done:;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_8apply(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self), __pyx_v_X);

  /* function exit code */
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_8apply(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, PyObject *__pyx_v_X) {
  struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_ts = 0;
  PyArrayObject *__pyx_v_out = 0;
  Py_ssize_t *__pyx_v_out_data;
  struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature;
  double __pyx_v_threshold;
  double __pyx_v_feature_value;
  Py_ssize_t __pyx_v_node_index;
  Py_ssize_t __pyx_v_i;
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_t_1;
  int __pyx_t_2;
  PyObject *__pyx_t_3 = NULL;
  PyObject *__pyx_t_4 = NULL;
  PyObject *__pyx_t_5 = NULL;
  int __pyx_t_6;
  PyObject *__pyx_t_7 = NULL;
  PyObject *__pyx_t_8 = NULL;
  char *__pyx_t_9;
  Py_ssize_t __pyx_t_10;
  Py_ssize_t __pyx_t_11;
  Py_ssize_t __pyx_t_12;
  double __pyx_t_13;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("apply", 0);
  __Pyx_INCREF(__pyx_v_X);

  /* "wildboar/tree/_ctree.pyx":679
 * 
 *     def apply(self, object X):
 *         if not isinstance(X, np.ndarray):             # <<<<<<<<<<<<<<
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 *         X = check_dataset(X)
 */
  __pyx_t_1 = __Pyx_TypeCheck(__pyx_v_X, __pyx_ptype_5numpy_ndarray); 
  __pyx_t_2 = (!__pyx_t_1);
  if (unlikely(__pyx_t_2)) {

    /* "wildboar/tree/_ctree.pyx":680
 *     def apply(self, object X):
 *         if not isinstance(X, np.ndarray):
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")             # <<<<<<<<<<<<<<
 *         X = check_dataset(X)
 *         cdef Dataset ts = Dataset(X)
 */
    __pyx_t_3 = __Pyx_PyObject_FormatSimple(((PyObject *)Py_TYPE(__pyx_v_X)), __pyx_empty_unicode); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 680, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_3);
    __pyx_t_4 = __Pyx_PyUnicode_Concat(__pyx_kp_u_X_should_be_np_ndarray_got, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 680, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
    __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 680, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_3);
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
    __Pyx_Raise(__pyx_t_3, 0, 0, 0);
    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
    __PYX_ERR(0, 680, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":679
 * 
 *     def apply(self, object X):
 *         if not isinstance(X, np.ndarray):             # <<<<<<<<<<<<<<
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 *         X = check_dataset(X)
 */
  }

  /* "wildboar/tree/_ctree.pyx":681
 *         if not isinstance(X, np.ndarray):
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 *         X = check_dataset(X)             # <<<<<<<<<<<<<<
 *         cdef Dataset ts = Dataset(X)
 *         cdef np.ndarray out = np.zeros((ts.n_samples,), dtype=np.intp)
 */
  __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_check_dataset); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 681, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __pyx_t_5 = NULL;
  __pyx_t_6 = 0;
  #if CYTHON_UNPACK_METHODS
  if (unlikely(PyMethod_Check(__pyx_t_4))) {
    __pyx_t_5 = PyMethod_GET_SELF(__pyx_t_4);
    if (likely(__pyx_t_5)) {
      PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_4);
      __Pyx_INCREF(__pyx_t_5);
      __Pyx_INCREF(function);
      __Pyx_DECREF_SET(__pyx_t_4, function);
      __pyx_t_6 = 1;
    }
  }
  #endif
  {
    PyObject *__pyx_callargs[2] = {__pyx_t_5, __pyx_v_X};
    __pyx_t_3 = __Pyx_PyObject_FastCall(__pyx_t_4, __pyx_callargs+1-__pyx_t_6, 1+__pyx_t_6);
    __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
    if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 681, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_3);
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
  }
  __Pyx_DECREF_SET(__pyx_v_X, __pyx_t_3);
  __pyx_t_3 = 0;

  /* "wildboar/tree/_ctree.pyx":682
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 *         X = check_dataset(X)
 *         cdef Dataset ts = Dataset(X)             # <<<<<<<<<<<<<<
 *         cdef np.ndarray out = np.zeros((ts.n_samples,), dtype=np.intp)
 *         cdef Py_ssize_t *out_data = <Py_ssize_t*> out.data
 */
  __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)__pyx_ptype_8wildboar_5utils_4data_Dataset), __pyx_v_X); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 682, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __pyx_v_ts = ((struct __pyx_obj_8wildboar_5utils_4data_Dataset *)__pyx_t_3);
  __pyx_t_3 = 0;

  /* "wildboar/tree/_ctree.pyx":683
 *         X = check_dataset(X)
 *         cdef Dataset ts = Dataset(X)
 *         cdef np.ndarray out = np.zeros((ts.n_samples,), dtype=np.intp)             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t *out_data = <Py_ssize_t*> out.data
 *         cdef Feature *feature
 */
  __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 683, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_zeros); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 683, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_ts->n_samples); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 683, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 683, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);
  __Pyx_GIVEREF(__pyx_t_3);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_t_3)) __PYX_ERR(0, 683, __pyx_L1_error);
  __pyx_t_3 = 0;
  __pyx_t_3 = PyTuple_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 683, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_GIVEREF(__pyx_t_5);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_3, 0, __pyx_t_5)) __PYX_ERR(0, 683, __pyx_L1_error);
  __pyx_t_5 = 0;
  __pyx_t_5 = __Pyx_PyDict_NewPresized(1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 683, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);
  __Pyx_GetModuleGlobalName(__pyx_t_7, __pyx_n_s_np); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 683, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_7);
  __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_7, __pyx_n_s_intp); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 683, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_8);
  __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
  if (PyDict_SetItem(__pyx_t_5, __pyx_n_s_dtype, __pyx_t_8) < 0) __PYX_ERR(0, 683, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
  __pyx_t_8 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_3, __pyx_t_5); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 683, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_8);
  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
  if (!(likely(((__pyx_t_8) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_8, __pyx_ptype_5numpy_ndarray))))) __PYX_ERR(0, 683, __pyx_L1_error)
  __pyx_v_out = ((PyArrayObject *)__pyx_t_8);
  __pyx_t_8 = 0;

  /* "wildboar/tree/_ctree.pyx":684
 *         cdef Dataset ts = Dataset(X)
 *         cdef np.ndarray out = np.zeros((ts.n_samples,), dtype=np.intp)
 *         cdef Py_ssize_t *out_data = <Py_ssize_t*> out.data             # <<<<<<<<<<<<<<
 *         cdef Feature *feature
 *         cdef double threshold, feature_value
 */
  __pyx_t_9 = __pyx_f_5numpy_7ndarray_4data_data(__pyx_v_out); if (unlikely(__pyx_t_9 == ((char *)NULL) && PyErr_Occurred())) __PYX_ERR(0, 684, __pyx_L1_error)
  __pyx_v_out_data = ((Py_ssize_t *)__pyx_t_9);

  /* "wildboar/tree/_ctree.pyx":689
 *         cdef Py_ssize_t node_index
 *         cdef Py_ssize_t i
 *         with nogil:             # <<<<<<<<<<<<<<
 *             self.feature_engineer.reset(ts)
 *             for i in range(ts.n_samples):
 */
  {
      #ifdef WITH_THREAD
      PyThreadState *_save;
      _save = NULL;
      Py_UNBLOCK_THREADS
      __Pyx_FastGIL_Remember();
      #endif
      /*try:*/ {

        /* "wildboar/tree/_ctree.pyx":690
 *         cdef Py_ssize_t i
 *         with nogil:
 *             self.feature_engineer.reset(ts)             # <<<<<<<<<<<<<<
 *             for i in range(ts.n_samples):
 *                 node_index = 0
 */
        ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->reset(__pyx_v_self->feature_engineer, __pyx_v_ts); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 690, __pyx_L5_error)

        /* "wildboar/tree/_ctree.pyx":691
 *         with nogil:
 *             self.feature_engineer.reset(ts)
 *             for i in range(ts.n_samples):             # <<<<<<<<<<<<<<
 *                 node_index = 0
 *                 while self._left[node_index] != -1:
 */
        __pyx_t_10 = __pyx_v_ts->n_samples;
        __pyx_t_11 = __pyx_t_10;
        for (__pyx_t_12 = 0; __pyx_t_12 < __pyx_t_11; __pyx_t_12+=1) {
          __pyx_v_i = __pyx_t_12;

          /* "wildboar/tree/_ctree.pyx":692
 *             self.feature_engineer.reset(ts)
 *             for i in range(ts.n_samples):
 *                 node_index = 0             # <<<<<<<<<<<<<<
 *                 while self._left[node_index] != -1:
 *                     threshold = self._thresholds[node_index]
 */
          __pyx_v_node_index = 0;

          /* "wildboar/tree/_ctree.pyx":693
 *             for i in range(ts.n_samples):
 *                 node_index = 0
 *                 while self._left[node_index] != -1:             # <<<<<<<<<<<<<<
 *                     threshold = self._thresholds[node_index]
 *                     feature = self._features[node_index]
 */
          while (1) {
            __pyx_t_2 = ((__pyx_v_self->_left[__pyx_v_node_index]) != -1L);
            if (!__pyx_t_2) break;

            /* "wildboar/tree/_ctree.pyx":694
 *                 node_index = 0
 *                 while self._left[node_index] != -1:
 *                     threshold = self._thresholds[node_index]             # <<<<<<<<<<<<<<
 *                     feature = self._features[node_index]
 *                     feature_value = self.feature_engineer.persistent_feature_value(
 */
            __pyx_v_threshold = (__pyx_v_self->_thresholds[__pyx_v_node_index]);

            /* "wildboar/tree/_ctree.pyx":695
 *                 while self._left[node_index] != -1:
 *                     threshold = self._thresholds[node_index]
 *                     feature = self._features[node_index]             # <<<<<<<<<<<<<<
 *                     feature_value = self.feature_engineer.persistent_feature_value(
 *                         feature, ts, i
 */
            __pyx_v_feature = (__pyx_v_self->_features[__pyx_v_node_index]);

            /* "wildboar/tree/_ctree.pyx":696
 *                     threshold = self._thresholds[node_index]
 *                     feature = self._features[node_index]
 *                     feature_value = self.feature_engineer.persistent_feature_value(             # <<<<<<<<<<<<<<
 *                         feature, ts, i
 *                     )
 */
            __pyx_t_13 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->persistent_feature_value(__pyx_v_self->feature_engineer, __pyx_v_feature, __pyx_v_ts, __pyx_v_i); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 696, __pyx_L5_error)
            __pyx_v_feature_value = __pyx_t_13;

            /* "wildboar/tree/_ctree.pyx":699
 *                         feature, ts, i
 *                     )
 *                     if feature_value <= threshold:             # <<<<<<<<<<<<<<
 *                         node_index = self._left[node_index]
 *                     else:
 */
            __pyx_t_2 = (__pyx_v_feature_value <= __pyx_v_threshold);
            if (__pyx_t_2) {

              /* "wildboar/tree/_ctree.pyx":700
 *                     )
 *                     if feature_value <= threshold:
 *                         node_index = self._left[node_index]             # <<<<<<<<<<<<<<
 *                     else:
 *                         node_index = self._right[node_index]
 */
              __pyx_v_node_index = (__pyx_v_self->_left[__pyx_v_node_index]);

              /* "wildboar/tree/_ctree.pyx":699
 *                         feature, ts, i
 *                     )
 *                     if feature_value <= threshold:             # <<<<<<<<<<<<<<
 *                         node_index = self._left[node_index]
 *                     else:
 */
              goto __pyx_L11;
            }

            /* "wildboar/tree/_ctree.pyx":702
 *                         node_index = self._left[node_index]
 *                     else:
 *                         node_index = self._right[node_index]             # <<<<<<<<<<<<<<
 *                 out_data[i] = <Py_ssize_t> node_index
 *         return out
 */
            /*else*/ {
              __pyx_v_node_index = (__pyx_v_self->_right[__pyx_v_node_index]);
            }
            __pyx_L11:;
          }

          /* "wildboar/tree/_ctree.pyx":703
 *                     else:
 *                         node_index = self._right[node_index]
 *                 out_data[i] = <Py_ssize_t> node_index             # <<<<<<<<<<<<<<
 *         return out
 * 
 */
          (__pyx_v_out_data[__pyx_v_i]) = ((Py_ssize_t)__pyx_v_node_index);
        }
      }

      /* "wildboar/tree/_ctree.pyx":689
 *         cdef Py_ssize_t node_index
 *         cdef Py_ssize_t i
 *         with nogil:             # <<<<<<<<<<<<<<
 *             self.feature_engineer.reset(ts)
 *             for i in range(ts.n_samples):
 */
      /*finally:*/ {
        /*normal exit:*/{
          #ifdef WITH_THREAD
          __Pyx_FastGIL_Forget();
          Py_BLOCK_THREADS
          #endif
          goto __pyx_L6;
        }
        __pyx_L5_error: {
          #ifdef WITH_THREAD
          __Pyx_FastGIL_Forget();
          Py_BLOCK_THREADS
          #endif
          goto __pyx_L1_error;
        }
        __pyx_L6:;
      }
  }

  /* "wildboar/tree/_ctree.pyx":704
 *                         node_index = self._right[node_index]
 *                 out_data[i] = <Py_ssize_t> node_index
 *         return out             # <<<<<<<<<<<<<<
 * 
 *     def decision_path(self, object X):
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_INCREF((PyObject *)__pyx_v_out);
  __pyx_r = ((PyObject *)__pyx_v_out);
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":678
 *         return predict
 * 
 *     def apply(self, object X):             # <<<<<<<<<<<<<<
 *         if not isinstance(X, np.ndarray):
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_XDECREF(__pyx_t_5);
  __Pyx_XDECREF(__pyx_t_7);
  __Pyx_XDECREF(__pyx_t_8);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.apply", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XDECREF((PyObject *)__pyx_v_ts);
  __Pyx_XDECREF((PyObject *)__pyx_v_out);
  __Pyx_XDECREF(__pyx_v_X);
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":706
 *         return out
 * 
 *     def decision_path(self, object X):             # <<<<<<<<<<<<<<
 *         if not isinstance(X, np.ndarray):
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_11decision_path(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_4Tree_11decision_path = {"decision_path", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_4Tree_11decision_path, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_11decision_path(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  PyObject *__pyx_v_X = 0;
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("decision_path (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_X,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_FASTCALL(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_X)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 706, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "decision_path") < 0)) __PYX_ERR(0, 706, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
    }
    __pyx_v_X = values[0];
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("decision_path", 1, 1, 1, __pyx_nargs); __PYX_ERR(0, 706, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.decision_path", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return NULL;
  __pyx_L4_argument_unpacking_done:;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_10decision_path(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self), __pyx_v_X);

  /* function exit code */
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_10decision_path(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, PyObject *__pyx_v_X) {
  struct __pyx_obj_8wildboar_5utils_4data_Dataset *__pyx_v_ts = 0;
  PyArrayObject *__pyx_v_out = 0;
  int *__pyx_v_out_data;
  Py_ssize_t __pyx_v_i_stride;
  Py_ssize_t __pyx_v_n_stride;
  Py_ssize_t __pyx_v_node_index;
  Py_ssize_t __pyx_v_i;
  struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature;
  double __pyx_v_threshold;
  double __pyx_v_feature_value;
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_t_1;
  int __pyx_t_2;
  PyObject *__pyx_t_3 = NULL;
  PyObject *__pyx_t_4 = NULL;
  PyObject *__pyx_t_5 = NULL;
  int __pyx_t_6;
  PyObject *__pyx_t_7 = NULL;
  PyObject *__pyx_t_8 = NULL;
  char *__pyx_t_9;
  npy_intp *__pyx_t_10;
  Py_ssize_t __pyx_t_11;
  Py_ssize_t __pyx_t_12;
  Py_ssize_t __pyx_t_13;
  double __pyx_t_14;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("decision_path", 0);
  __Pyx_INCREF(__pyx_v_X);

  /* "wildboar/tree/_ctree.pyx":707
 * 
 *     def decision_path(self, object X):
 *         if not isinstance(X, np.ndarray):             # <<<<<<<<<<<<<<
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 *         X = check_dataset(X)
 */
  __pyx_t_1 = __Pyx_TypeCheck(__pyx_v_X, __pyx_ptype_5numpy_ndarray); 
  __pyx_t_2 = (!__pyx_t_1);
  if (unlikely(__pyx_t_2)) {

    /* "wildboar/tree/_ctree.pyx":708
 *     def decision_path(self, object X):
 *         if not isinstance(X, np.ndarray):
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")             # <<<<<<<<<<<<<<
 *         X = check_dataset(X)
 *         cdef Dataset ts = Dataset(X)
 */
    __pyx_t_3 = __Pyx_PyObject_FormatSimple(((PyObject *)Py_TYPE(__pyx_v_X)), __pyx_empty_unicode); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 708, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_3);
    __pyx_t_4 = __Pyx_PyUnicode_Concat(__pyx_kp_u_X_should_be_np_ndarray_got, __pyx_t_3); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 708, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_4);
    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
    __pyx_t_3 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_4); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 708, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_3);
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
    __Pyx_Raise(__pyx_t_3, 0, 0, 0);
    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
    __PYX_ERR(0, 708, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":707
 * 
 *     def decision_path(self, object X):
 *         if not isinstance(X, np.ndarray):             # <<<<<<<<<<<<<<
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 *         X = check_dataset(X)
 */
  }

  /* "wildboar/tree/_ctree.pyx":709
 *         if not isinstance(X, np.ndarray):
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 *         X = check_dataset(X)             # <<<<<<<<<<<<<<
 *         cdef Dataset ts = Dataset(X)
 *         cdef np.ndarray out = np.zeros((ts.n_samples, self.node_count), order="c", dtype=np.intc)
 */
  __Pyx_GetModuleGlobalName(__pyx_t_4, __pyx_n_s_check_dataset); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 709, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __pyx_t_5 = NULL;
  __pyx_t_6 = 0;
  #if CYTHON_UNPACK_METHODS
  if (unlikely(PyMethod_Check(__pyx_t_4))) {
    __pyx_t_5 = PyMethod_GET_SELF(__pyx_t_4);
    if (likely(__pyx_t_5)) {
      PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_4);
      __Pyx_INCREF(__pyx_t_5);
      __Pyx_INCREF(function);
      __Pyx_DECREF_SET(__pyx_t_4, function);
      __pyx_t_6 = 1;
    }
  }
  #endif
  {
    PyObject *__pyx_callargs[2] = {__pyx_t_5, __pyx_v_X};
    __pyx_t_3 = __Pyx_PyObject_FastCall(__pyx_t_4, __pyx_callargs+1-__pyx_t_6, 1+__pyx_t_6);
    __Pyx_XDECREF(__pyx_t_5); __pyx_t_5 = 0;
    if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 709, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_3);
    __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
  }
  __Pyx_DECREF_SET(__pyx_v_X, __pyx_t_3);
  __pyx_t_3 = 0;

  /* "wildboar/tree/_ctree.pyx":710
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 *         X = check_dataset(X)
 *         cdef Dataset ts = Dataset(X)             # <<<<<<<<<<<<<<
 *         cdef np.ndarray out = np.zeros((ts.n_samples, self.node_count), order="c", dtype=np.intc)
 * 
 */
  __pyx_t_3 = __Pyx_PyObject_CallOneArg(((PyObject *)__pyx_ptype_8wildboar_5utils_4data_Dataset), __pyx_v_X); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 710, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __pyx_v_ts = ((struct __pyx_obj_8wildboar_5utils_4data_Dataset *)__pyx_t_3);
  __pyx_t_3 = 0;

  /* "wildboar/tree/_ctree.pyx":711
 *         X = check_dataset(X)
 *         cdef Dataset ts = Dataset(X)
 *         cdef np.ndarray out = np.zeros((ts.n_samples, self.node_count), order="c", dtype=np.intc)             # <<<<<<<<<<<<<<
 * 
 *         cdef int *out_data = <int*> out.data
 */
  __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 711, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __pyx_t_4 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_zeros); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 711, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __pyx_t_3 = PyInt_FromSsize_t(__pyx_v_ts->n_samples); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 711, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __pyx_t_5 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_node_count); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 711, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);
  __pyx_t_7 = PyTuple_New(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 711, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_7);
  __Pyx_GIVEREF(__pyx_t_3);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_7, 0, __pyx_t_3)) __PYX_ERR(0, 711, __pyx_L1_error);
  __Pyx_GIVEREF(__pyx_t_5);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_7, 1, __pyx_t_5)) __PYX_ERR(0, 711, __pyx_L1_error);
  __pyx_t_3 = 0;
  __pyx_t_5 = 0;
  __pyx_t_5 = PyTuple_New(1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 711, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);
  __Pyx_GIVEREF(__pyx_t_7);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_5, 0, __pyx_t_7)) __PYX_ERR(0, 711, __pyx_L1_error);
  __pyx_t_7 = 0;
  __pyx_t_7 = __Pyx_PyDict_NewPresized(2); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 711, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_7);
  if (PyDict_SetItem(__pyx_t_7, __pyx_n_s_order, __pyx_n_u_c) < 0) __PYX_ERR(0, 711, __pyx_L1_error)
  __Pyx_GetModuleGlobalName(__pyx_t_3, __pyx_n_s_np); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 711, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __pyx_t_8 = __Pyx_PyObject_GetAttrStr(__pyx_t_3, __pyx_n_s_intc); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 711, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_8);
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  if (PyDict_SetItem(__pyx_t_7, __pyx_n_s_dtype, __pyx_t_8) < 0) __PYX_ERR(0, 711, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
  __pyx_t_8 = __Pyx_PyObject_Call(__pyx_t_4, __pyx_t_5, __pyx_t_7); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 711, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_8);
  __Pyx_DECREF(__pyx_t_4); __pyx_t_4 = 0;
  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
  __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
  if (!(likely(((__pyx_t_8) == Py_None) || likely(__Pyx_TypeTest(__pyx_t_8, __pyx_ptype_5numpy_ndarray))))) __PYX_ERR(0, 711, __pyx_L1_error)
  __pyx_v_out = ((PyArrayObject *)__pyx_t_8);
  __pyx_t_8 = 0;

  /* "wildboar/tree/_ctree.pyx":713
 *         cdef np.ndarray out = np.zeros((ts.n_samples, self.node_count), order="c", dtype=np.intc)
 * 
 *         cdef int *out_data = <int*> out.data             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t i_stride = <Py_ssize_t> out.strides[0] / <Py_ssize_t> out.itemsize
 *         cdef Py_ssize_t n_stride = <Py_ssize_t> out.strides[1] / <Py_ssize_t> out.itemsize
 */
  __pyx_t_9 = __pyx_f_5numpy_7ndarray_4data_data(__pyx_v_out); if (unlikely(__pyx_t_9 == ((char *)NULL) && PyErr_Occurred())) __PYX_ERR(0, 713, __pyx_L1_error)
  __pyx_v_out_data = ((int *)__pyx_t_9);

  /* "wildboar/tree/_ctree.pyx":714
 * 
 *         cdef int *out_data = <int*> out.data
 *         cdef Py_ssize_t i_stride = <Py_ssize_t> out.strides[0] / <Py_ssize_t> out.itemsize             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t n_stride = <Py_ssize_t> out.strides[1] / <Py_ssize_t> out.itemsize
 *         cdef Py_ssize_t node_index
 */
  __pyx_t_10 = __pyx_f_5numpy_7ndarray_7strides_strides(__pyx_v_out); if (unlikely(__pyx_t_10 == ((npy_intp *)NULL) && PyErr_Occurred())) __PYX_ERR(0, 714, __pyx_L1_error)
  __pyx_t_8 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_out), __pyx_n_s_itemsize); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 714, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_8);
  __pyx_t_11 = __Pyx_PyIndex_AsSsize_t(__pyx_t_8); if (unlikely((__pyx_t_11 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 714, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
  __pyx_v_i_stride = (((Py_ssize_t)(__pyx_t_10[0])) / ((Py_ssize_t)__pyx_t_11));

  /* "wildboar/tree/_ctree.pyx":715
 *         cdef int *out_data = <int*> out.data
 *         cdef Py_ssize_t i_stride = <Py_ssize_t> out.strides[0] / <Py_ssize_t> out.itemsize
 *         cdef Py_ssize_t n_stride = <Py_ssize_t> out.strides[1] / <Py_ssize_t> out.itemsize             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t node_index
 *         cdef Py_ssize_t i
 */
  __pyx_t_10 = __pyx_f_5numpy_7ndarray_7strides_strides(__pyx_v_out); if (unlikely(__pyx_t_10 == ((npy_intp *)NULL) && PyErr_Occurred())) __PYX_ERR(0, 715, __pyx_L1_error)
  __pyx_t_8 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_out), __pyx_n_s_itemsize); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 715, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_8);
  __pyx_t_11 = __Pyx_PyIndex_AsSsize_t(__pyx_t_8); if (unlikely((__pyx_t_11 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 715, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
  __pyx_v_n_stride = (((Py_ssize_t)(__pyx_t_10[1])) / ((Py_ssize_t)__pyx_t_11));

  /* "wildboar/tree/_ctree.pyx":720
 *         cdef Feature *feature
 *         cdef double threshold, feature_value
 *         with nogil:             # <<<<<<<<<<<<<<
 *             self.feature_engineer.reset(ts)
 *             for i in range(ts.n_samples):
 */
  {
      #ifdef WITH_THREAD
      PyThreadState *_save;
      _save = NULL;
      Py_UNBLOCK_THREADS
      __Pyx_FastGIL_Remember();
      #endif
      /*try:*/ {

        /* "wildboar/tree/_ctree.pyx":721
 *         cdef double threshold, feature_value
 *         with nogil:
 *             self.feature_engineer.reset(ts)             # <<<<<<<<<<<<<<
 *             for i in range(ts.n_samples):
 *                 node_index = 0
 */
        ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->reset(__pyx_v_self->feature_engineer, __pyx_v_ts); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 721, __pyx_L5_error)

        /* "wildboar/tree/_ctree.pyx":722
 *         with nogil:
 *             self.feature_engineer.reset(ts)
 *             for i in range(ts.n_samples):             # <<<<<<<<<<<<<<
 *                 node_index = 0
 *                 while self._left[node_index] != -1:
 */
        __pyx_t_11 = __pyx_v_ts->n_samples;
        __pyx_t_12 = __pyx_t_11;
        for (__pyx_t_13 = 0; __pyx_t_13 < __pyx_t_12; __pyx_t_13+=1) {
          __pyx_v_i = __pyx_t_13;

          /* "wildboar/tree/_ctree.pyx":723
 *             self.feature_engineer.reset(ts)
 *             for i in range(ts.n_samples):
 *                 node_index = 0             # <<<<<<<<<<<<<<
 *                 while self._left[node_index] != -1:
 *                     out_data[i * i_stride + node_index * n_stride] = 1
 */
          __pyx_v_node_index = 0;

          /* "wildboar/tree/_ctree.pyx":724
 *             for i in range(ts.n_samples):
 *                 node_index = 0
 *                 while self._left[node_index] != -1:             # <<<<<<<<<<<<<<
 *                     out_data[i * i_stride + node_index * n_stride] = 1
 *                     threshold = self._thresholds[node_index]
 */
          while (1) {
            __pyx_t_2 = ((__pyx_v_self->_left[__pyx_v_node_index]) != -1L);
            if (!__pyx_t_2) break;

            /* "wildboar/tree/_ctree.pyx":725
 *                 node_index = 0
 *                 while self._left[node_index] != -1:
 *                     out_data[i * i_stride + node_index * n_stride] = 1             # <<<<<<<<<<<<<<
 *                     threshold = self._thresholds[node_index]
 *                     feature = self._features[node_index]
 */
            (__pyx_v_out_data[((__pyx_v_i * __pyx_v_i_stride) + (__pyx_v_node_index * __pyx_v_n_stride))]) = 1;

            /* "wildboar/tree/_ctree.pyx":726
 *                 while self._left[node_index] != -1:
 *                     out_data[i * i_stride + node_index * n_stride] = 1
 *                     threshold = self._thresholds[node_index]             # <<<<<<<<<<<<<<
 *                     feature = self._features[node_index]
 *                     feature_value = self.feature_engineer.persistent_feature_value(
 */
            __pyx_v_threshold = (__pyx_v_self->_thresholds[__pyx_v_node_index]);

            /* "wildboar/tree/_ctree.pyx":727
 *                     out_data[i * i_stride + node_index * n_stride] = 1
 *                     threshold = self._thresholds[node_index]
 *                     feature = self._features[node_index]             # <<<<<<<<<<<<<<
 *                     feature_value = self.feature_engineer.persistent_feature_value(
 *                         feature, ts, i
 */
            __pyx_v_feature = (__pyx_v_self->_features[__pyx_v_node_index]);

            /* "wildboar/tree/_ctree.pyx":728
 *                     threshold = self._thresholds[node_index]
 *                     feature = self._features[node_index]
 *                     feature_value = self.feature_engineer.persistent_feature_value(             # <<<<<<<<<<<<<<
 *                         feature, ts, i
 *                     )
 */
            __pyx_t_14 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->persistent_feature_value(__pyx_v_self->feature_engineer, __pyx_v_feature, __pyx_v_ts, __pyx_v_i); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 728, __pyx_L5_error)
            __pyx_v_feature_value = __pyx_t_14;

            /* "wildboar/tree/_ctree.pyx":731
 *                         feature, ts, i
 *                     )
 *                     if feature_value <= threshold:             # <<<<<<<<<<<<<<
 *                         node_index = self._left[node_index]
 *                     else:
 */
            __pyx_t_2 = (__pyx_v_feature_value <= __pyx_v_threshold);
            if (__pyx_t_2) {

              /* "wildboar/tree/_ctree.pyx":732
 *                     )
 *                     if feature_value <= threshold:
 *                         node_index = self._left[node_index]             # <<<<<<<<<<<<<<
 *                     else:
 *                         node_index = self._right[node_index]
 */
              __pyx_v_node_index = (__pyx_v_self->_left[__pyx_v_node_index]);

              /* "wildboar/tree/_ctree.pyx":731
 *                         feature, ts, i
 *                     )
 *                     if feature_value <= threshold:             # <<<<<<<<<<<<<<
 *                         node_index = self._left[node_index]
 *                     else:
 */
              goto __pyx_L11;
            }

            /* "wildboar/tree/_ctree.pyx":734
 *                         node_index = self._left[node_index]
 *                     else:
 *                         node_index = self._right[node_index]             # <<<<<<<<<<<<<<
 *         return csr_matrix(out, dtype=bool)
 * 
 */
            /*else*/ {
              __pyx_v_node_index = (__pyx_v_self->_right[__pyx_v_node_index]);
            }
            __pyx_L11:;
          }
        }
      }

      /* "wildboar/tree/_ctree.pyx":720
 *         cdef Feature *feature
 *         cdef double threshold, feature_value
 *         with nogil:             # <<<<<<<<<<<<<<
 *             self.feature_engineer.reset(ts)
 *             for i in range(ts.n_samples):
 */
      /*finally:*/ {
        /*normal exit:*/{
          #ifdef WITH_THREAD
          __Pyx_FastGIL_Forget();
          Py_BLOCK_THREADS
          #endif
          goto __pyx_L6;
        }
        __pyx_L5_error: {
          #ifdef WITH_THREAD
          __Pyx_FastGIL_Forget();
          Py_BLOCK_THREADS
          #endif
          goto __pyx_L1_error;
        }
        __pyx_L6:;
      }
  }

  /* "wildboar/tree/_ctree.pyx":735
 *                     else:
 *                         node_index = self._right[node_index]
 *         return csr_matrix(out, dtype=bool)             # <<<<<<<<<<<<<<
 * 
 *     @property
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_GetModuleGlobalName(__pyx_t_8, __pyx_n_s_csr_matrix); if (unlikely(!__pyx_t_8)) __PYX_ERR(0, 735, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_8);
  __pyx_t_7 = PyTuple_New(1); if (unlikely(!__pyx_t_7)) __PYX_ERR(0, 735, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_7);
  __Pyx_INCREF((PyObject *)__pyx_v_out);
  __Pyx_GIVEREF((PyObject *)__pyx_v_out);
  if (__Pyx_PyTuple_SET_ITEM(__pyx_t_7, 0, ((PyObject *)__pyx_v_out))) __PYX_ERR(0, 735, __pyx_L1_error);
  __pyx_t_5 = __Pyx_PyDict_NewPresized(1); if (unlikely(!__pyx_t_5)) __PYX_ERR(0, 735, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_5);
  if (PyDict_SetItem(__pyx_t_5, __pyx_n_s_dtype, ((PyObject*)&PyBool_Type)) < 0) __PYX_ERR(0, 735, __pyx_L1_error)
  __pyx_t_4 = __Pyx_PyObject_Call(__pyx_t_8, __pyx_t_7, __pyx_t_5); if (unlikely(!__pyx_t_4)) __PYX_ERR(0, 735, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_4);
  __Pyx_DECREF(__pyx_t_8); __pyx_t_8 = 0;
  __Pyx_DECREF(__pyx_t_7); __pyx_t_7 = 0;
  __Pyx_DECREF(__pyx_t_5); __pyx_t_5 = 0;
  __pyx_r = __pyx_t_4;
  __pyx_t_4 = 0;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":706
 *         return out
 * 
 *     def decision_path(self, object X):             # <<<<<<<<<<<<<<
 *         if not isinstance(X, np.ndarray):
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_XDECREF(__pyx_t_5);
  __Pyx_XDECREF(__pyx_t_7);
  __Pyx_XDECREF(__pyx_t_8);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.decision_path", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XDECREF((PyObject *)__pyx_v_ts);
  __Pyx_XDECREF((PyObject *)__pyx_v_out);
  __Pyx_XDECREF(__pyx_v_X);
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":737
 *         return csr_matrix(out, dtype=bool)
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def node_count(self):
 *         return self._node_count
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_10node_count_1__get__(PyObject *__pyx_v_self); /*proto*/
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_4Tree_10node_count_1__get__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_4Tree_10node_count___get__(((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_4Tree_10node_count___get__(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__get__", 1);

  /* "wildboar/tree/_ctree.pyx":739
 *     @property
 *     def node_count(self):
 *         return self._node_count             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t add_leaf_node(
 */
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = PyInt_FromSsize_t(__pyx_v_self->_node_count); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 739, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_r = __pyx_t_1;
  __pyx_t_1 = 0;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":737
 *         return csr_matrix(out, dtype=bool)
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def node_count(self):
 *         return self._node_count
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.node_count.__get__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":741
 *         return self._node_count
 * 
 *     cdef Py_ssize_t add_leaf_node(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t parent,
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_4Tree_add_leaf_node(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, Py_ssize_t __pyx_v_parent, int __pyx_v_is_left, Py_ssize_t __pyx_v_n_node_samples, double __pyx_v_n_weighted_node_samples) {
  Py_ssize_t __pyx_v_node_id;
  Py_ssize_t __pyx_r;
  Py_ssize_t __pyx_t_1;
  int __pyx_t_2;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":748
 *         double n_weighted_node_samples,
 *     ) nogil:
 *         cdef Py_ssize_t node_id = self._node_count             # <<<<<<<<<<<<<<
 *         if node_id >= self._capacity:
 *             if self._increase_capacity() == -1:
 */
  __pyx_t_1 = __pyx_v_self->_node_count;
  __pyx_v_node_id = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":749
 *     ) nogil:
 *         cdef Py_ssize_t node_id = self._node_count
 *         if node_id >= self._capacity:             # <<<<<<<<<<<<<<
 *             if self._increase_capacity() == -1:
 *                 return -1
 */
  __pyx_t_2 = (__pyx_v_node_id >= __pyx_v_self->_capacity);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":750
 *         cdef Py_ssize_t node_id = self._node_count
 *         if node_id >= self._capacity:
 *             if self._increase_capacity() == -1:             # <<<<<<<<<<<<<<
 *                 return -1
 * 
 */
    __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self->__pyx_vtab)->_increase_capacity(__pyx_v_self); if (unlikely(__pyx_t_1 == ((Py_ssize_t)-1L))) __PYX_ERR(0, 750, __pyx_L1_error)
    __pyx_t_2 = (__pyx_t_1 == -1L);
    if (__pyx_t_2) {

      /* "wildboar/tree/_ctree.pyx":751
 *         if node_id >= self._capacity:
 *             if self._increase_capacity() == -1:
 *                 return -1             # <<<<<<<<<<<<<<
 * 
 *         self._n_node_samples[node_id] = n_node_samples
 */
      __pyx_r = -1L;
      goto __pyx_L0;

      /* "wildboar/tree/_ctree.pyx":750
 *         cdef Py_ssize_t node_id = self._node_count
 *         if node_id >= self._capacity:
 *             if self._increase_capacity() == -1:             # <<<<<<<<<<<<<<
 *                 return -1
 * 
 */
    }

    /* "wildboar/tree/_ctree.pyx":749
 *     ) nogil:
 *         cdef Py_ssize_t node_id = self._node_count
 *         if node_id >= self._capacity:             # <<<<<<<<<<<<<<
 *             if self._increase_capacity() == -1:
 *                 return -1
 */
  }

  /* "wildboar/tree/_ctree.pyx":753
 *                 return -1
 * 
 *         self._n_node_samples[node_id] = n_node_samples             # <<<<<<<<<<<<<<
 *         self._n_weighted_node_samples[node_id] = n_weighted_node_samples
 *         if parent != -1:
 */
  (__pyx_v_self->_n_node_samples[__pyx_v_node_id]) = __pyx_v_n_node_samples;

  /* "wildboar/tree/_ctree.pyx":754
 * 
 *         self._n_node_samples[node_id] = n_node_samples
 *         self._n_weighted_node_samples[node_id] = n_weighted_node_samples             # <<<<<<<<<<<<<<
 *         if parent != -1:
 *             if is_left:
 */
  (__pyx_v_self->_n_weighted_node_samples[__pyx_v_node_id]) = __pyx_v_n_weighted_node_samples;

  /* "wildboar/tree/_ctree.pyx":755
 *         self._n_node_samples[node_id] = n_node_samples
 *         self._n_weighted_node_samples[node_id] = n_weighted_node_samples
 *         if parent != -1:             # <<<<<<<<<<<<<<
 *             if is_left:
 *                 self._left[parent] = node_id
 */
  __pyx_t_2 = (__pyx_v_parent != -1L);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":756
 *         self._n_weighted_node_samples[node_id] = n_weighted_node_samples
 *         if parent != -1:
 *             if is_left:             # <<<<<<<<<<<<<<
 *                 self._left[parent] = node_id
 *             else:
 */
    if (__pyx_v_is_left) {

      /* "wildboar/tree/_ctree.pyx":757
 *         if parent != -1:
 *             if is_left:
 *                 self._left[parent] = node_id             # <<<<<<<<<<<<<<
 *             else:
 *                 self._right[parent] = node_id
 */
      (__pyx_v_self->_left[__pyx_v_parent]) = __pyx_v_node_id;

      /* "wildboar/tree/_ctree.pyx":756
 *         self._n_weighted_node_samples[node_id] = n_weighted_node_samples
 *         if parent != -1:
 *             if is_left:             # <<<<<<<<<<<<<<
 *                 self._left[parent] = node_id
 *             else:
 */
      goto __pyx_L6;
    }

    /* "wildboar/tree/_ctree.pyx":759
 *                 self._left[parent] = node_id
 *             else:
 *                 self._right[parent] = node_id             # <<<<<<<<<<<<<<
 *         self._left[node_id] = -1
 *         self._right[node_id] = -1
 */
    /*else*/ {
      (__pyx_v_self->_right[__pyx_v_parent]) = __pyx_v_node_id;
    }
    __pyx_L6:;

    /* "wildboar/tree/_ctree.pyx":755
 *         self._n_node_samples[node_id] = n_node_samples
 *         self._n_weighted_node_samples[node_id] = n_weighted_node_samples
 *         if parent != -1:             # <<<<<<<<<<<<<<
 *             if is_left:
 *                 self._left[parent] = node_id
 */
  }

  /* "wildboar/tree/_ctree.pyx":760
 *             else:
 *                 self._right[parent] = node_id
 *         self._left[node_id] = -1             # <<<<<<<<<<<<<<
 *         self._right[node_id] = -1
 *         self._impurity[node_id] = -1
 */
  (__pyx_v_self->_left[__pyx_v_node_id]) = -1L;

  /* "wildboar/tree/_ctree.pyx":761
 *                 self._right[parent] = node_id
 *         self._left[node_id] = -1
 *         self._right[node_id] = -1             # <<<<<<<<<<<<<<
 *         self._impurity[node_id] = -1
 *         self._features[node_id] = NULL
 */
  (__pyx_v_self->_right[__pyx_v_node_id]) = -1L;

  /* "wildboar/tree/_ctree.pyx":762
 *         self._left[node_id] = -1
 *         self._right[node_id] = -1
 *         self._impurity[node_id] = -1             # <<<<<<<<<<<<<<
 *         self._features[node_id] = NULL
 *         self._node_count += 1
 */
  (__pyx_v_self->_impurity[__pyx_v_node_id]) = -1.0;

  /* "wildboar/tree/_ctree.pyx":763
 *         self._right[node_id] = -1
 *         self._impurity[node_id] = -1
 *         self._features[node_id] = NULL             # <<<<<<<<<<<<<<
 *         self._node_count += 1
 *         return node_id
 */
  (__pyx_v_self->_features[__pyx_v_node_id]) = NULL;

  /* "wildboar/tree/_ctree.pyx":764
 *         self._impurity[node_id] = -1
 *         self._features[node_id] = NULL
 *         self._node_count += 1             # <<<<<<<<<<<<<<
 *         return node_id
 * 
 */
  __pyx_v_self->_node_count = (__pyx_v_self->_node_count + 1);

  /* "wildboar/tree/_ctree.pyx":765
 *         self._features[node_id] = NULL
 *         self._node_count += 1
 *         return node_id             # <<<<<<<<<<<<<<
 * 
 *     cdef void set_leaf_value(
 */
  __pyx_r = __pyx_v_node_id;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":741
 *         return self._node_count
 * 
 *     cdef Py_ssize_t add_leaf_node(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t parent,
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.add_leaf_node", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":767
 *         return node_id
 * 
 *     cdef void set_leaf_value(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t node_id,
 */

static void __pyx_f_8wildboar_4tree_6_ctree_4Tree_set_leaf_value(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, Py_ssize_t __pyx_v_node_id, Py_ssize_t __pyx_v_out_label, double __pyx_v_out_value) {

  /* "wildboar/tree/_ctree.pyx":773
 *         double out_value,
 *     ) nogil:
 *         self._values[out_label + node_id * self._n_labels] = out_value             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t add_branch_node(
 */
  (__pyx_v_self->_values[(__pyx_v_out_label + (__pyx_v_node_id * __pyx_v_self->_n_labels))]) = __pyx_v_out_value;

  /* "wildboar/tree/_ctree.pyx":767
 *         return node_id
 * 
 *     cdef void set_leaf_value(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t node_id,
 */

  /* function exit code */
}

/* "wildboar/tree/_ctree.pyx":775
 *         self._values[out_label + node_id * self._n_labels] = out_value
 * 
 *     cdef Py_ssize_t add_branch_node(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t parent,
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_4Tree_add_branch_node(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self, Py_ssize_t __pyx_v_parent, int __pyx_v_is_left, Py_ssize_t __pyx_v_n_node_samples, double __pyx_v_n_weighted_node_samples, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_feature, double __pyx_v_threshold, double __pyx_v_impurity) {
  Py_ssize_t __pyx_v_node_id;
  Py_ssize_t __pyx_r;
  Py_ssize_t __pyx_t_1;
  int __pyx_t_2;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":785
 *         double impurity,
 *     ) nogil:
 *         cdef Py_ssize_t node_id = self._node_count             # <<<<<<<<<<<<<<
 *         if node_id >= self._capacity:
 *             if self._increase_capacity() == -1:
 */
  __pyx_t_1 = __pyx_v_self->_node_count;
  __pyx_v_node_id = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":786
 *     ) nogil:
 *         cdef Py_ssize_t node_id = self._node_count
 *         if node_id >= self._capacity:             # <<<<<<<<<<<<<<
 *             if self._increase_capacity() == -1:
 *                 return -1
 */
  __pyx_t_2 = (__pyx_v_node_id >= __pyx_v_self->_capacity);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":787
 *         cdef Py_ssize_t node_id = self._node_count
 *         if node_id >= self._capacity:
 *             if self._increase_capacity() == -1:             # <<<<<<<<<<<<<<
 *                 return -1
 * 
 */
    __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self->__pyx_vtab)->_increase_capacity(__pyx_v_self); if (unlikely(__pyx_t_1 == ((Py_ssize_t)-1L))) __PYX_ERR(0, 787, __pyx_L1_error)
    __pyx_t_2 = (__pyx_t_1 == -1L);
    if (__pyx_t_2) {

      /* "wildboar/tree/_ctree.pyx":788
 *         if node_id >= self._capacity:
 *             if self._increase_capacity() == -1:
 *                 return -1             # <<<<<<<<<<<<<<
 * 
 *         self._impurity[node_id] = impurity
 */
      __pyx_r = -1L;
      goto __pyx_L0;

      /* "wildboar/tree/_ctree.pyx":787
 *         cdef Py_ssize_t node_id = self._node_count
 *         if node_id >= self._capacity:
 *             if self._increase_capacity() == -1:             # <<<<<<<<<<<<<<
 *                 return -1
 * 
 */
    }

    /* "wildboar/tree/_ctree.pyx":786
 *     ) nogil:
 *         cdef Py_ssize_t node_id = self._node_count
 *         if node_id >= self._capacity:             # <<<<<<<<<<<<<<
 *             if self._increase_capacity() == -1:
 *                 return -1
 */
  }

  /* "wildboar/tree/_ctree.pyx":790
 *                 return -1
 * 
 *         self._impurity[node_id] = impurity             # <<<<<<<<<<<<<<
 *         self._n_node_samples[node_id] = n_node_samples
 *         self._n_weighted_node_samples[node_id] = n_weighted_node_samples
 */
  (__pyx_v_self->_impurity[__pyx_v_node_id]) = __pyx_v_impurity;

  /* "wildboar/tree/_ctree.pyx":791
 * 
 *         self._impurity[node_id] = impurity
 *         self._n_node_samples[node_id] = n_node_samples             # <<<<<<<<<<<<<<
 *         self._n_weighted_node_samples[node_id] = n_weighted_node_samples
 *         self._thresholds[node_id] = threshold
 */
  (__pyx_v_self->_n_node_samples[__pyx_v_node_id]) = __pyx_v_n_node_samples;

  /* "wildboar/tree/_ctree.pyx":792
 *         self._impurity[node_id] = impurity
 *         self._n_node_samples[node_id] = n_node_samples
 *         self._n_weighted_node_samples[node_id] = n_weighted_node_samples             # <<<<<<<<<<<<<<
 *         self._thresholds[node_id] = threshold
 *         self._features[node_id] = feature
 */
  (__pyx_v_self->_n_weighted_node_samples[__pyx_v_node_id]) = __pyx_v_n_weighted_node_samples;

  /* "wildboar/tree/_ctree.pyx":793
 *         self._n_node_samples[node_id] = n_node_samples
 *         self._n_weighted_node_samples[node_id] = n_weighted_node_samples
 *         self._thresholds[node_id] = threshold             # <<<<<<<<<<<<<<
 *         self._features[node_id] = feature
 *         if parent != -1:
 */
  (__pyx_v_self->_thresholds[__pyx_v_node_id]) = __pyx_v_threshold;

  /* "wildboar/tree/_ctree.pyx":794
 *         self._n_weighted_node_samples[node_id] = n_weighted_node_samples
 *         self._thresholds[node_id] = threshold
 *         self._features[node_id] = feature             # <<<<<<<<<<<<<<
 *         if parent != -1:
 *             if is_left:
 */
  (__pyx_v_self->_features[__pyx_v_node_id]) = __pyx_v_feature;

  /* "wildboar/tree/_ctree.pyx":795
 *         self._thresholds[node_id] = threshold
 *         self._features[node_id] = feature
 *         if parent != -1:             # <<<<<<<<<<<<<<
 *             if is_left:
 *                 self._left[parent] = node_id
 */
  __pyx_t_2 = (__pyx_v_parent != -1L);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":796
 *         self._features[node_id] = feature
 *         if parent != -1:
 *             if is_left:             # <<<<<<<<<<<<<<
 *                 self._left[parent] = node_id
 *             else:
 */
    if (__pyx_v_is_left) {

      /* "wildboar/tree/_ctree.pyx":797
 *         if parent != -1:
 *             if is_left:
 *                 self._left[parent] = node_id             # <<<<<<<<<<<<<<
 *             else:
 *                 self._right[parent] = node_id
 */
      (__pyx_v_self->_left[__pyx_v_parent]) = __pyx_v_node_id;

      /* "wildboar/tree/_ctree.pyx":796
 *         self._features[node_id] = feature
 *         if parent != -1:
 *             if is_left:             # <<<<<<<<<<<<<<
 *                 self._left[parent] = node_id
 *             else:
 */
      goto __pyx_L6;
    }

    /* "wildboar/tree/_ctree.pyx":799
 *                 self._left[parent] = node_id
 *             else:
 *                 self._right[parent] = node_id             # <<<<<<<<<<<<<<
 * 
 *         self._node_count += 1
 */
    /*else*/ {
      (__pyx_v_self->_right[__pyx_v_parent]) = __pyx_v_node_id;
    }
    __pyx_L6:;

    /* "wildboar/tree/_ctree.pyx":795
 *         self._thresholds[node_id] = threshold
 *         self._features[node_id] = feature
 *         if parent != -1:             # <<<<<<<<<<<<<<
 *             if is_left:
 *                 self._left[parent] = node_id
 */
  }

  /* "wildboar/tree/_ctree.pyx":801
 *                 self._right[parent] = node_id
 * 
 *         self._node_count += 1             # <<<<<<<<<<<<<<
 *         return node_id
 * 
 */
  __pyx_v_self->_node_count = (__pyx_v_self->_node_count + 1);

  /* "wildboar/tree/_ctree.pyx":802
 * 
 *         self._node_count += 1
 *         return node_id             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t _increase_capacity(self) nogil except -1:
 */
  __pyx_r = __pyx_v_node_id;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":775
 *         self._values[out_label + node_id * self._n_labels] = out_value
 * 
 *     cdef Py_ssize_t add_branch_node(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t parent,
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree.add_branch_node", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":804
 *         return node_id
 * 
 *     cdef Py_ssize_t _increase_capacity(self) nogil except -1:             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t new_capacity = self._node_count * 2
 *         cdef Py_ssize_t ret
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_4Tree__increase_capacity(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_self) {
  Py_ssize_t __pyx_v_new_capacity;
  Py_ssize_t __pyx_v_ret;
  Py_ssize_t __pyx_r;
  int __pyx_t_1;
  int __pyx_t_2;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":805
 * 
 *     cdef Py_ssize_t _increase_capacity(self) nogil except -1:
 *         cdef Py_ssize_t new_capacity = self._node_count * 2             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t ret
 *         ret = safe_realloc(<void**> &self._features, sizeof(Feature*) * new_capacity)
 */
  __pyx_v_new_capacity = (__pyx_v_self->_node_count * 2);

  /* "wildboar/tree/_ctree.pyx":807
 *         cdef Py_ssize_t new_capacity = self._node_count * 2
 *         cdef Py_ssize_t ret
 *         ret = safe_realloc(<void**> &self._features, sizeof(Feature*) * new_capacity)             # <<<<<<<<<<<<<<
 *         if ret == -1:
 *             return -1
 */
  __pyx_t_1 = __pyx_f_8wildboar_5utils_4misc_safe_realloc(((void **)(&__pyx_v_self->_features)), ((sizeof(struct __pyx_t_8wildboar_9transform_8_feature_Feature *)) * __pyx_v_new_capacity)); if (unlikely(__pyx_t_1 == ((int)-1))) __PYX_ERR(0, 807, __pyx_L1_error)
  __pyx_v_ret = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":808
 *         cdef Py_ssize_t ret
 *         ret = safe_realloc(<void**> &self._features, sizeof(Feature*) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  __pyx_t_2 = (__pyx_v_ret == -1L);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":809
 *         ret = safe_realloc(<void**> &self._features, sizeof(Feature*) * new_capacity)
 *         if ret == -1:
 *             return -1             # <<<<<<<<<<<<<<
 * 
 *         ret = safe_realloc(<void**> &self._thresholds, sizeof(double) * new_capacity)
 */
    __pyx_r = -1L;
    goto __pyx_L0;

    /* "wildboar/tree/_ctree.pyx":808
 *         cdef Py_ssize_t ret
 *         ret = safe_realloc(<void**> &self._features, sizeof(Feature*) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":811
 *             return -1
 * 
 *         ret = safe_realloc(<void**> &self._thresholds, sizeof(double) * new_capacity)             # <<<<<<<<<<<<<<
 *         if ret == -1:
 *             return -1
 */
  __pyx_t_1 = __pyx_f_8wildboar_5utils_4misc_safe_realloc(((void **)(&__pyx_v_self->_thresholds)), ((sizeof(double)) * __pyx_v_new_capacity)); if (unlikely(__pyx_t_1 == ((int)-1))) __PYX_ERR(0, 811, __pyx_L1_error)
  __pyx_v_ret = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":812
 * 
 *         ret = safe_realloc(<void**> &self._thresholds, sizeof(double) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  __pyx_t_2 = (__pyx_v_ret == -1L);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":813
 *         ret = safe_realloc(<void**> &self._thresholds, sizeof(double) * new_capacity)
 *         if ret == -1:
 *             return -1             # <<<<<<<<<<<<<<
 * 
 *         ret = safe_realloc(<void**> &self._impurity, sizeof(double) * new_capacity)
 */
    __pyx_r = -1L;
    goto __pyx_L0;

    /* "wildboar/tree/_ctree.pyx":812
 * 
 *         ret = safe_realloc(<void**> &self._thresholds, sizeof(double) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":815
 *             return -1
 * 
 *         ret = safe_realloc(<void**> &self._impurity, sizeof(double) * new_capacity)             # <<<<<<<<<<<<<<
 *         if ret == -1:
 *             return -1
 */
  __pyx_t_1 = __pyx_f_8wildboar_5utils_4misc_safe_realloc(((void **)(&__pyx_v_self->_impurity)), ((sizeof(double)) * __pyx_v_new_capacity)); if (unlikely(__pyx_t_1 == ((int)-1))) __PYX_ERR(0, 815, __pyx_L1_error)
  __pyx_v_ret = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":816
 * 
 *         ret = safe_realloc(<void**> &self._impurity, sizeof(double) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  __pyx_t_2 = (__pyx_v_ret == -1L);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":817
 *         ret = safe_realloc(<void**> &self._impurity, sizeof(double) * new_capacity)
 *         if ret == -1:
 *             return -1             # <<<<<<<<<<<<<<
 * 
 *         ret = safe_realloc(<void**> &self._n_node_samples, sizeof(double) * new_capacity)
 */
    __pyx_r = -1L;
    goto __pyx_L0;

    /* "wildboar/tree/_ctree.pyx":816
 * 
 *         ret = safe_realloc(<void**> &self._impurity, sizeof(double) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":819
 *             return -1
 * 
 *         ret = safe_realloc(<void**> &self._n_node_samples, sizeof(double) * new_capacity)             # <<<<<<<<<<<<<<
 *         if ret == -1:
 *             return -1
 */
  __pyx_t_1 = __pyx_f_8wildboar_5utils_4misc_safe_realloc(((void **)(&__pyx_v_self->_n_node_samples)), ((sizeof(double)) * __pyx_v_new_capacity)); if (unlikely(__pyx_t_1 == ((int)-1))) __PYX_ERR(0, 819, __pyx_L1_error)
  __pyx_v_ret = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":820
 * 
 *         ret = safe_realloc(<void**> &self._n_node_samples, sizeof(double) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  __pyx_t_2 = (__pyx_v_ret == -1L);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":821
 *         ret = safe_realloc(<void**> &self._n_node_samples, sizeof(double) * new_capacity)
 *         if ret == -1:
 *             return -1             # <<<<<<<<<<<<<<
 * 
 *         ret = safe_realloc(<void**> &self._n_weighted_node_samples, sizeof(Py_ssize_t) * new_capacity)
 */
    __pyx_r = -1L;
    goto __pyx_L0;

    /* "wildboar/tree/_ctree.pyx":820
 * 
 *         ret = safe_realloc(<void**> &self._n_node_samples, sizeof(double) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":823
 *             return -1
 * 
 *         ret = safe_realloc(<void**> &self._n_weighted_node_samples, sizeof(Py_ssize_t) * new_capacity)             # <<<<<<<<<<<<<<
 *         if ret == -1:
 *             return -1
 */
  __pyx_t_1 = __pyx_f_8wildboar_5utils_4misc_safe_realloc(((void **)(&__pyx_v_self->_n_weighted_node_samples)), ((sizeof(Py_ssize_t)) * __pyx_v_new_capacity)); if (unlikely(__pyx_t_1 == ((int)-1))) __PYX_ERR(0, 823, __pyx_L1_error)
  __pyx_v_ret = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":824
 * 
 *         ret = safe_realloc(<void**> &self._n_weighted_node_samples, sizeof(Py_ssize_t) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  __pyx_t_2 = (__pyx_v_ret == -1L);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":825
 *         ret = safe_realloc(<void**> &self._n_weighted_node_samples, sizeof(Py_ssize_t) * new_capacity)
 *         if ret == -1:
 *             return -1             # <<<<<<<<<<<<<<
 * 
 *         ret = safe_realloc(<void**> &self._values, sizeof(double) * self._n_labels * new_capacity)
 */
    __pyx_r = -1L;
    goto __pyx_L0;

    /* "wildboar/tree/_ctree.pyx":824
 * 
 *         ret = safe_realloc(<void**> &self._n_weighted_node_samples, sizeof(Py_ssize_t) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":827
 *             return -1
 * 
 *         ret = safe_realloc(<void**> &self._values, sizeof(double) * self._n_labels * new_capacity)             # <<<<<<<<<<<<<<
 *         if ret == -1:
 *             return -1
 */
  __pyx_t_1 = __pyx_f_8wildboar_5utils_4misc_safe_realloc(((void **)(&__pyx_v_self->_values)), (((sizeof(double)) * __pyx_v_self->_n_labels) * __pyx_v_new_capacity)); if (unlikely(__pyx_t_1 == ((int)-1))) __PYX_ERR(0, 827, __pyx_L1_error)
  __pyx_v_ret = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":828
 * 
 *         ret = safe_realloc(<void**> &self._values, sizeof(double) * self._n_labels * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  __pyx_t_2 = (__pyx_v_ret == -1L);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":829
 *         ret = safe_realloc(<void**> &self._values, sizeof(double) * self._n_labels * new_capacity)
 *         if ret == -1:
 *             return -1             # <<<<<<<<<<<<<<
 * 
 *         ret = safe_realloc(<void**> &self._left, sizeof(Py_ssize_t) * new_capacity)
 */
    __pyx_r = -1L;
    goto __pyx_L0;

    /* "wildboar/tree/_ctree.pyx":828
 * 
 *         ret = safe_realloc(<void**> &self._values, sizeof(double) * self._n_labels * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":831
 *             return -1
 * 
 *         ret = safe_realloc(<void**> &self._left, sizeof(Py_ssize_t) * new_capacity)             # <<<<<<<<<<<<<<
 *         if ret == -1:
 *             return -1
 */
  __pyx_t_1 = __pyx_f_8wildboar_5utils_4misc_safe_realloc(((void **)(&__pyx_v_self->_left)), ((sizeof(Py_ssize_t)) * __pyx_v_new_capacity)); if (unlikely(__pyx_t_1 == ((int)-1))) __PYX_ERR(0, 831, __pyx_L1_error)
  __pyx_v_ret = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":832
 * 
 *         ret = safe_realloc(<void**> &self._left, sizeof(Py_ssize_t) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  __pyx_t_2 = (__pyx_v_ret == -1L);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":833
 *         ret = safe_realloc(<void**> &self._left, sizeof(Py_ssize_t) * new_capacity)
 *         if ret == -1:
 *             return -1             # <<<<<<<<<<<<<<
 * 
 *         ret = safe_realloc(<void**> &self._right, sizeof(Py_ssize_t) * new_capacity)
 */
    __pyx_r = -1L;
    goto __pyx_L0;

    /* "wildboar/tree/_ctree.pyx":832
 * 
 *         ret = safe_realloc(<void**> &self._left, sizeof(Py_ssize_t) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":835
 *             return -1
 * 
 *         ret = safe_realloc(<void**> &self._right, sizeof(Py_ssize_t) * new_capacity)             # <<<<<<<<<<<<<<
 *         if ret == -1:
 *             return -1
 */
  __pyx_t_1 = __pyx_f_8wildboar_5utils_4misc_safe_realloc(((void **)(&__pyx_v_self->_right)), ((sizeof(Py_ssize_t)) * __pyx_v_new_capacity)); if (unlikely(__pyx_t_1 == ((int)-1))) __PYX_ERR(0, 835, __pyx_L1_error)
  __pyx_v_ret = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":836
 * 
 *         ret = safe_realloc(<void**> &self._right, sizeof(Py_ssize_t) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 *         self._capacity = new_capacity
 */
  __pyx_t_2 = (__pyx_v_ret == -1L);
  if (__pyx_t_2) {

    /* "wildboar/tree/_ctree.pyx":837
 *         ret = safe_realloc(<void**> &self._right, sizeof(Py_ssize_t) * new_capacity)
 *         if ret == -1:
 *             return -1             # <<<<<<<<<<<<<<
 *         self._capacity = new_capacity
 *         return 0
 */
    __pyx_r = -1L;
    goto __pyx_L0;

    /* "wildboar/tree/_ctree.pyx":836
 * 
 *         ret = safe_realloc(<void**> &self._right, sizeof(Py_ssize_t) * new_capacity)
 *         if ret == -1:             # <<<<<<<<<<<<<<
 *             return -1
 *         self._capacity = new_capacity
 */
  }

  /* "wildboar/tree/_ctree.pyx":838
 *         if ret == -1:
 *             return -1
 *         self._capacity = new_capacity             # <<<<<<<<<<<<<<
 *         return 0
 * 
 */
  __pyx_v_self->_capacity = __pyx_v_new_capacity;

  /* "wildboar/tree/_ctree.pyx":839
 *             return -1
 *         self._capacity = new_capacity
 *         return 0             # <<<<<<<<<<<<<<
 * 
 * cdef class TreeBuilder:
 */
  __pyx_r = 0;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":804
 *         return node_id
 * 
 *     cdef Py_ssize_t _increase_capacity(self) nogil except -1:             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t new_capacity = self._node_count * 2
 *         cdef Py_ssize_t ret
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.Tree._increase_capacity", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = -1L;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":879
 *     cdef size_t random_seed
 * 
 *     def __cinit__(             # <<<<<<<<<<<<<<
 *         self,
 *         np.ndarray X,
 */

/* Python wrapper */
static int __pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds); /*proto*/
static int __pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_1__cinit__(PyObject *__pyx_v_self, PyObject *__pyx_args, PyObject *__pyx_kwds) {
  PyArrayObject *__pyx_v_X = 0;
  PyArrayObject *__pyx_v_sample_weights = 0;
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_feature_engineer = 0;
  struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_criterion = 0;
  struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_tree = 0;
  PyObject *__pyx_v_random_state = 0;
  Py_ssize_t __pyx_v_max_depth;
  Py_ssize_t __pyx_v_min_sample_split;
  Py_ssize_t __pyx_v_min_sample_leaf;
  double __pyx_v_min_impurity_decrease;
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[10] = {0,0,0,0,0,0,0,0,0,0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__cinit__ (wrapper)", 0);
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return -1;
  #endif
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_X,&__pyx_n_s_sample_weights,&__pyx_n_s_feature_engineer,&__pyx_n_s_criterion,&__pyx_n_s_tree,&__pyx_n_s_random_state,&__pyx_n_s_max_depth,&__pyx_n_s_min_sample_split,&__pyx_n_s_min_sample_leaf,&__pyx_n_s_min_impurity_decrease,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case 10: values[9] = __Pyx_Arg_VARARGS(__pyx_args, 9);
        CYTHON_FALLTHROUGH;
        case  9: values[8] = __Pyx_Arg_VARARGS(__pyx_args, 8);
        CYTHON_FALLTHROUGH;
        case  8: values[7] = __Pyx_Arg_VARARGS(__pyx_args, 7);
        CYTHON_FALLTHROUGH;
        case  7: values[6] = __Pyx_Arg_VARARGS(__pyx_args, 6);
        CYTHON_FALLTHROUGH;
        case  6: values[5] = __Pyx_Arg_VARARGS(__pyx_args, 5);
        CYTHON_FALLTHROUGH;
        case  5: values[4] = __Pyx_Arg_VARARGS(__pyx_args, 4);
        CYTHON_FALLTHROUGH;
        case  4: values[3] = __Pyx_Arg_VARARGS(__pyx_args, 3);
        CYTHON_FALLTHROUGH;
        case  3: values[2] = __Pyx_Arg_VARARGS(__pyx_args, 2);
        CYTHON_FALLTHROUGH;
        case  2: values[1] = __Pyx_Arg_VARARGS(__pyx_args, 1);
        CYTHON_FALLTHROUGH;
        case  1: values[0] = __Pyx_Arg_VARARGS(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_VARARGS(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_X)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 879, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
        CYTHON_FALLTHROUGH;
        case  1:
        if (likely((values[1] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_sample_weights)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[1]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 879, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 6, 10, 1); __PYX_ERR(0, 879, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  2:
        if (likely((values[2] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_feature_engineer)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[2]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 879, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 6, 10, 2); __PYX_ERR(0, 879, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  3:
        if (likely((values[3] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_criterion)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[3]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 879, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 6, 10, 3); __PYX_ERR(0, 879, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  4:
        if (likely((values[4] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_tree)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[4]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 879, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 6, 10, 4); __PYX_ERR(0, 879, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  5:
        if (likely((values[5] = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_random_state)) != 0)) {
          (void)__Pyx_Arg_NewRef_VARARGS(values[5]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 879, __pyx_L3_error)
        else {
          __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 6, 10, 5); __PYX_ERR(0, 879, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  6:
        if (kw_args > 0) {
          PyObject* value = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_max_depth);
          if (value) { values[6] = __Pyx_Arg_NewRef_VARARGS(value); kw_args--; }
          else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 879, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  7:
        if (kw_args > 0) {
          PyObject* value = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_min_sample_split);
          if (value) { values[7] = __Pyx_Arg_NewRef_VARARGS(value); kw_args--; }
          else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 879, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  8:
        if (kw_args > 0) {
          PyObject* value = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_min_sample_leaf);
          if (value) { values[8] = __Pyx_Arg_NewRef_VARARGS(value); kw_args--; }
          else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 879, __pyx_L3_error)
        }
        CYTHON_FALLTHROUGH;
        case  9:
        if (kw_args > 0) {
          PyObject* value = __Pyx_GetKwValue_VARARGS(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_min_impurity_decrease);
          if (value) { values[9] = __Pyx_Arg_NewRef_VARARGS(value); kw_args--; }
          else if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 879, __pyx_L3_error)
        }
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__cinit__") < 0)) __PYX_ERR(0, 879, __pyx_L3_error)
      }
    } else {
      switch (__pyx_nargs) {
        case 10: values[9] = __Pyx_Arg_VARARGS(__pyx_args, 9);
        CYTHON_FALLTHROUGH;
        case  9: values[8] = __Pyx_Arg_VARARGS(__pyx_args, 8);
        CYTHON_FALLTHROUGH;
        case  8: values[7] = __Pyx_Arg_VARARGS(__pyx_args, 7);
        CYTHON_FALLTHROUGH;
        case  7: values[6] = __Pyx_Arg_VARARGS(__pyx_args, 6);
        CYTHON_FALLTHROUGH;
        case  6: values[5] = __Pyx_Arg_VARARGS(__pyx_args, 5);
        values[4] = __Pyx_Arg_VARARGS(__pyx_args, 4);
        values[3] = __Pyx_Arg_VARARGS(__pyx_args, 3);
        values[2] = __Pyx_Arg_VARARGS(__pyx_args, 2);
        values[1] = __Pyx_Arg_VARARGS(__pyx_args, 1);
        values[0] = __Pyx_Arg_VARARGS(__pyx_args, 0);
        break;
        default: goto __pyx_L5_argtuple_error;
      }
    }
    __pyx_v_X = ((PyArrayObject *)values[0]);
    __pyx_v_sample_weights = ((PyArrayObject *)values[1]);
    __pyx_v_feature_engineer = ((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)values[2]);
    __pyx_v_criterion = ((struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *)values[3]);
    __pyx_v_tree = ((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)values[4]);
    __pyx_v_random_state = values[5];
    if (values[6]) {
      __pyx_v_max_depth = __Pyx_PyIndex_AsSsize_t(values[6]); if (unlikely((__pyx_v_max_depth == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 887, __pyx_L3_error)
    } else {
      __pyx_v_max_depth = ((Py_ssize_t)0x10000);
    }
    if (values[7]) {
      __pyx_v_min_sample_split = __Pyx_PyIndex_AsSsize_t(values[7]); if (unlikely((__pyx_v_min_sample_split == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 888, __pyx_L3_error)
    } else {
      __pyx_v_min_sample_split = ((Py_ssize_t)2);
    }
    if (values[8]) {
      __pyx_v_min_sample_leaf = __Pyx_PyIndex_AsSsize_t(values[8]); if (unlikely((__pyx_v_min_sample_leaf == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 889, __pyx_L3_error)
    } else {
      __pyx_v_min_sample_leaf = ((Py_ssize_t)1);
    }
    if (values[9]) {
      __pyx_v_min_impurity_decrease = __pyx_PyFloat_AsDouble(values[9]); if (unlikely((__pyx_v_min_impurity_decrease == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 890, __pyx_L3_error)
    } else {
      __pyx_v_min_impurity_decrease = ((double)0.0);
    }
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__cinit__", 0, 6, 10, __pyx_nargs); __PYX_ERR(0, 879, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_VARARGS(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeBuilder.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return -1;
  __pyx_L4_argument_unpacking_done:;
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_X), __pyx_ptype_5numpy_ndarray, 1, "X", 0))) __PYX_ERR(0, 881, __pyx_L1_error)
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_sample_weights), __pyx_ptype_5numpy_ndarray, 1, "sample_weights", 0))) __PYX_ERR(0, 882, __pyx_L1_error)
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_feature_engineer), __pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer, 1, "feature_engineer", 0))) __PYX_ERR(0, 883, __pyx_L1_error)
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_criterion), __pyx_ptype_8wildboar_4tree_6_ctree_Criterion, 1, "criterion", 0))) __PYX_ERR(0, 884, __pyx_L1_error)
  if (unlikely(!__Pyx_ArgTypeTest(((PyObject *)__pyx_v_tree), __pyx_ptype_8wildboar_4tree_6_ctree_Tree, 1, "tree", 0))) __PYX_ERR(0, 885, __pyx_L1_error)
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder___cinit__(((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self), __pyx_v_X, __pyx_v_sample_weights, __pyx_v_feature_engineer, __pyx_v_criterion, __pyx_v_tree, __pyx_v_random_state, __pyx_v_max_depth, __pyx_v_min_sample_split, __pyx_v_min_sample_leaf, __pyx_v_min_impurity_decrease);

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  __pyx_r = -1;
  __pyx_L0:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_VARARGS(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static int __pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder___cinit__(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, PyArrayObject *__pyx_v_X, PyArrayObject *__pyx_v_sample_weights, struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *__pyx_v_feature_engineer, struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *__pyx_v_criterion, struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *__pyx_v_tree, PyObject *__pyx_v_random_state, Py_ssize_t __pyx_v_max_depth, Py_ssize_t __pyx_v_min_sample_split, Py_ssize_t __pyx_v_min_sample_leaf, double __pyx_v_min_impurity_decrease) {
  Py_ssize_t __pyx_v_i;
  Py_ssize_t __pyx_v_j;
  int __pyx_r;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  PyObject *__pyx_t_4 = NULL;
  int __pyx_t_5;
  size_t __pyx_t_6;
  Py_ssize_t __pyx_t_7;
  int __pyx_t_8;
  int __pyx_t_9;
  Py_ssize_t __pyx_t_10;
  Py_ssize_t __pyx_t_11;
  double __pyx_t_12;
  npy_intp *__pyx_t_13;
  char *__pyx_t_14;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__cinit__", 1);

  /* "wildboar/tree/_ctree.pyx":892
 *         double min_impurity_decrease=0.0,
 *     ):
 *         self.max_depth = max_depth             # <<<<<<<<<<<<<<
 *         self.min_sample_split = min_sample_split
 *         self.min_sample_leaf = min_sample_leaf
 */
  __pyx_v_self->max_depth = __pyx_v_max_depth;

  /* "wildboar/tree/_ctree.pyx":893
 *     ):
 *         self.max_depth = max_depth
 *         self.min_sample_split = min_sample_split             # <<<<<<<<<<<<<<
 *         self.min_sample_leaf = min_sample_leaf
 *         self.min_impurity_decrease = min_impurity_decrease
 */
  __pyx_v_self->min_sample_split = __pyx_v_min_sample_split;

  /* "wildboar/tree/_ctree.pyx":894
 *         self.max_depth = max_depth
 *         self.min_sample_split = min_sample_split
 *         self.min_sample_leaf = min_sample_leaf             # <<<<<<<<<<<<<<
 *         self.min_impurity_decrease = min_impurity_decrease
 *         self.random_seed = random_state.randint(0, RAND_R_MAX)
 */
  __pyx_v_self->min_sample_leaf = __pyx_v_min_sample_leaf;

  /* "wildboar/tree/_ctree.pyx":895
 *         self.min_sample_split = min_sample_split
 *         self.min_sample_leaf = min_sample_leaf
 *         self.min_impurity_decrease = min_impurity_decrease             # <<<<<<<<<<<<<<
 *         self.random_seed = random_state.randint(0, RAND_R_MAX)
 * 
 */
  __pyx_v_self->min_impurity_decrease = __pyx_v_min_impurity_decrease;

  /* "wildboar/tree/_ctree.pyx":896
 *         self.min_sample_leaf = min_sample_leaf
 *         self.min_impurity_decrease = min_impurity_decrease
 *         self.random_seed = random_state.randint(0, RAND_R_MAX)             # <<<<<<<<<<<<<<
 * 
 *         self.td = Dataset(X)
 */
  __pyx_t_2 = __Pyx_PyObject_GetAttrStr(__pyx_v_random_state, __pyx_n_s_randint); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 896, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __pyx_t_3 = __Pyx_PyInt_From___pyx_anon_enum(__pyx_e_8wildboar_5utils_4rand_RAND_R_MAX); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 896, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __pyx_t_4 = NULL;
  __pyx_t_5 = 0;
  #if CYTHON_UNPACK_METHODS
  if (likely(PyMethod_Check(__pyx_t_2))) {
    __pyx_t_4 = PyMethod_GET_SELF(__pyx_t_2);
    if (likely(__pyx_t_4)) {
      PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_2);
      __Pyx_INCREF(__pyx_t_4);
      __Pyx_INCREF(function);
      __Pyx_DECREF_SET(__pyx_t_2, function);
      __pyx_t_5 = 1;
    }
  }
  #endif
  {
    PyObject *__pyx_callargs[3] = {__pyx_t_4, __pyx_int_0, __pyx_t_3};
    __pyx_t_1 = __Pyx_PyObject_FastCall(__pyx_t_2, __pyx_callargs+1-__pyx_t_5, 2+__pyx_t_5);
    __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
    if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 896, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_1);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  }
  __pyx_t_6 = __Pyx_PyInt_As_size_t(__pyx_t_1); if (unlikely((__pyx_t_6 == (size_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 896, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_v_self->random_seed = __pyx_t_6;

  /* "wildboar/tree/_ctree.pyx":898
 *         self.random_seed = random_state.randint(0, RAND_R_MAX)
 * 
 *         self.td = Dataset(X)             # <<<<<<<<<<<<<<
 *         self.feature_engineer = feature_engineer
 *         self.criterion = criterion
 */
  __pyx_t_1 = __Pyx_PyObject_CallOneArg(((PyObject *)__pyx_ptype_8wildboar_5utils_4data_Dataset), ((PyObject *)__pyx_v_X)); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 898, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __Pyx_GIVEREF(__pyx_t_1);
  __Pyx_GOTREF((PyObject *)__pyx_v_self->td);
  __Pyx_DECREF((PyObject *)__pyx_v_self->td);
  __pyx_v_self->td = ((struct __pyx_obj_8wildboar_5utils_4data_Dataset *)__pyx_t_1);
  __pyx_t_1 = 0;

  /* "wildboar/tree/_ctree.pyx":899
 * 
 *         self.td = Dataset(X)
 *         self.feature_engineer = feature_engineer             # <<<<<<<<<<<<<<
 *         self.criterion = criterion
 *         self.tree = tree
 */
  __Pyx_INCREF((PyObject *)__pyx_v_feature_engineer);
  __Pyx_GIVEREF((PyObject *)__pyx_v_feature_engineer);
  __Pyx_GOTREF((PyObject *)__pyx_v_self->feature_engineer);
  __Pyx_DECREF((PyObject *)__pyx_v_self->feature_engineer);
  __pyx_v_self->feature_engineer = __pyx_v_feature_engineer;

  /* "wildboar/tree/_ctree.pyx":900
 *         self.td = Dataset(X)
 *         self.feature_engineer = feature_engineer
 *         self.criterion = criterion             # <<<<<<<<<<<<<<
 *         self.tree = tree
 * 
 */
  __Pyx_INCREF((PyObject *)__pyx_v_criterion);
  __Pyx_GIVEREF((PyObject *)__pyx_v_criterion);
  __Pyx_GOTREF((PyObject *)__pyx_v_self->criterion);
  __Pyx_DECREF((PyObject *)__pyx_v_self->criterion);
  __pyx_v_self->criterion = __pyx_v_criterion;

  /* "wildboar/tree/_ctree.pyx":901
 *         self.feature_engineer = feature_engineer
 *         self.criterion = criterion
 *         self.tree = tree             # <<<<<<<<<<<<<<
 * 
 *         self.current_node_id = 0
 */
  __Pyx_INCREF((PyObject *)__pyx_v_tree);
  __Pyx_GIVEREF((PyObject *)__pyx_v_tree);
  __Pyx_GOTREF((PyObject *)__pyx_v_self->tree);
  __Pyx_DECREF((PyObject *)__pyx_v_self->tree);
  __pyx_v_self->tree = __pyx_v_tree;

  /* "wildboar/tree/_ctree.pyx":903
 *         self.tree = tree
 * 
 *         self.current_node_id = 0             # <<<<<<<<<<<<<<
 *         self.n_samples = self.td.n_samples
 *         self.samples = <Py_ssize_t*> malloc(sizeof(Py_ssize_t) * self.n_samples)
 */
  __pyx_v_self->current_node_id = 0;

  /* "wildboar/tree/_ctree.pyx":904
 * 
 *         self.current_node_id = 0
 *         self.n_samples = self.td.n_samples             # <<<<<<<<<<<<<<
 *         self.samples = <Py_ssize_t*> malloc(sizeof(Py_ssize_t) * self.n_samples)
 *         self.samples_buffer = <Py_ssize_t*> malloc(sizeof(Py_ssize_t) * self.n_samples)
 */
  __pyx_t_7 = __pyx_v_self->td->n_samples;
  __pyx_v_self->n_samples = __pyx_t_7;

  /* "wildboar/tree/_ctree.pyx":905
 *         self.current_node_id = 0
 *         self.n_samples = self.td.n_samples
 *         self.samples = <Py_ssize_t*> malloc(sizeof(Py_ssize_t) * self.n_samples)             # <<<<<<<<<<<<<<
 *         self.samples_buffer = <Py_ssize_t*> malloc(sizeof(Py_ssize_t) * self.n_samples)
 *         self.feature_buffer = <double*> malloc(sizeof(double) * self.n_samples)
 */
  __pyx_v_self->samples = ((Py_ssize_t *)malloc(((sizeof(Py_ssize_t)) * __pyx_v_self->n_samples)));

  /* "wildboar/tree/_ctree.pyx":906
 *         self.n_samples = self.td.n_samples
 *         self.samples = <Py_ssize_t*> malloc(sizeof(Py_ssize_t) * self.n_samples)
 *         self.samples_buffer = <Py_ssize_t*> malloc(sizeof(Py_ssize_t) * self.n_samples)             # <<<<<<<<<<<<<<
 *         self.feature_buffer = <double*> malloc(sizeof(double) * self.n_samples)
 * 
 */
  __pyx_v_self->samples_buffer = ((Py_ssize_t *)malloc(((sizeof(Py_ssize_t)) * __pyx_v_self->n_samples)));

  /* "wildboar/tree/_ctree.pyx":907
 *         self.samples = <Py_ssize_t*> malloc(sizeof(Py_ssize_t) * self.n_samples)
 *         self.samples_buffer = <Py_ssize_t*> malloc(sizeof(Py_ssize_t) * self.n_samples)
 *         self.feature_buffer = <double*> malloc(sizeof(double) * self.n_samples)             # <<<<<<<<<<<<<<
 * 
 *         if (
 */
  __pyx_v_self->feature_buffer = ((double *)malloc(((sizeof(double)) * __pyx_v_self->n_samples)));

  /* "wildboar/tree/_ctree.pyx":910
 * 
 *         if (
 *             self.samples == NULL or             # <<<<<<<<<<<<<<
 *             self.feature_buffer == NULL or
 *             self.samples_buffer == NULL
 */
  __pyx_t_9 = (__pyx_v_self->samples == NULL);
  if (!__pyx_t_9) {
  } else {
    __pyx_t_8 = __pyx_t_9;
    goto __pyx_L4_bool_binop_done;
  }

  /* "wildboar/tree/_ctree.pyx":911
 *         if (
 *             self.samples == NULL or
 *             self.feature_buffer == NULL or             # <<<<<<<<<<<<<<
 *             self.samples_buffer == NULL
 *         ):
 */
  __pyx_t_9 = (__pyx_v_self->feature_buffer == NULL);
  if (!__pyx_t_9) {
  } else {
    __pyx_t_8 = __pyx_t_9;
    goto __pyx_L4_bool_binop_done;
  }

  /* "wildboar/tree/_ctree.pyx":912
 *             self.samples == NULL or
 *             self.feature_buffer == NULL or
 *             self.samples_buffer == NULL             # <<<<<<<<<<<<<<
 *         ):
 *             raise MemoryError()
 */
  __pyx_t_9 = (__pyx_v_self->samples_buffer == NULL);
  __pyx_t_8 = __pyx_t_9;
  __pyx_L4_bool_binop_done:;

  /* "wildboar/tree/_ctree.pyx":909
 *         self.feature_buffer = <double*> malloc(sizeof(double) * self.n_samples)
 * 
 *         if (             # <<<<<<<<<<<<<<
 *             self.samples == NULL or
 *             self.feature_buffer == NULL or
 */
  if (unlikely(__pyx_t_8)) {

    /* "wildboar/tree/_ctree.pyx":914
 *             self.samples_buffer == NULL
 *         ):
 *             raise MemoryError()             # <<<<<<<<<<<<<<
 * 
 *         cdef Py_ssize_t i
 */
    PyErr_NoMemory(); __PYX_ERR(0, 914, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":909
 *         self.feature_buffer = <double*> malloc(sizeof(double) * self.n_samples)
 * 
 *         if (             # <<<<<<<<<<<<<<
 *             self.samples == NULL or
 *             self.feature_buffer == NULL or
 */
  }

  /* "wildboar/tree/_ctree.pyx":917
 * 
 *         cdef Py_ssize_t i
 *         cdef Py_ssize_t j = 0             # <<<<<<<<<<<<<<
 *         self.n_weighted_samples = 0.0
 *         for i in range(self.n_samples):
 */
  __pyx_v_j = 0;

  /* "wildboar/tree/_ctree.pyx":918
 *         cdef Py_ssize_t i
 *         cdef Py_ssize_t j = 0
 *         self.n_weighted_samples = 0.0             # <<<<<<<<<<<<<<
 *         for i in range(self.n_samples):
 *             if sample_weights is None or sample_weights[i] != 0.0:
 */
  __pyx_v_self->n_weighted_samples = 0.0;

  /* "wildboar/tree/_ctree.pyx":919
 *         cdef Py_ssize_t j = 0
 *         self.n_weighted_samples = 0.0
 *         for i in range(self.n_samples):             # <<<<<<<<<<<<<<
 *             if sample_weights is None or sample_weights[i] != 0.0:
 *                 self.samples[j] = i
 */
  __pyx_t_7 = __pyx_v_self->n_samples;
  __pyx_t_10 = __pyx_t_7;
  for (__pyx_t_11 = 0; __pyx_t_11 < __pyx_t_10; __pyx_t_11+=1) {
    __pyx_v_i = __pyx_t_11;

    /* "wildboar/tree/_ctree.pyx":920
 *         self.n_weighted_samples = 0.0
 *         for i in range(self.n_samples):
 *             if sample_weights is None or sample_weights[i] != 0.0:             # <<<<<<<<<<<<<<
 *                 self.samples[j] = i
 *                 j += 1
 */
    __pyx_t_9 = (((PyObject *)__pyx_v_sample_weights) == Py_None);
    if (!__pyx_t_9) {
    } else {
      __pyx_t_8 = __pyx_t_9;
      goto __pyx_L10_bool_binop_done;
    }
    __pyx_t_1 = __Pyx_GetItemInt(((PyObject *)__pyx_v_sample_weights), __pyx_v_i, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 920, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_1);
    __pyx_t_9 = (__Pyx_PyFloat_BoolNeObjC(__pyx_t_1, __pyx_float_0_0, 0.0, 0, 0)); if (unlikely((__pyx_t_9 < 0))) __PYX_ERR(0, 920, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
    __pyx_t_8 = __pyx_t_9;
    __pyx_L10_bool_binop_done:;
    if (__pyx_t_8) {

      /* "wildboar/tree/_ctree.pyx":921
 *         for i in range(self.n_samples):
 *             if sample_weights is None or sample_weights[i] != 0.0:
 *                 self.samples[j] = i             # <<<<<<<<<<<<<<
 *                 j += 1
 *                 if sample_weights is not None:
 */
      (__pyx_v_self->samples[__pyx_v_j]) = __pyx_v_i;

      /* "wildboar/tree/_ctree.pyx":922
 *             if sample_weights is None or sample_weights[i] != 0.0:
 *                 self.samples[j] = i
 *                 j += 1             # <<<<<<<<<<<<<<
 *                 if sample_weights is not None:
 *                     self.n_weighted_samples += sample_weights[i]
 */
      __pyx_v_j = (__pyx_v_j + 1);

      /* "wildboar/tree/_ctree.pyx":923
 *                 self.samples[j] = i
 *                 j += 1
 *                 if sample_weights is not None:             # <<<<<<<<<<<<<<
 *                     self.n_weighted_samples += sample_weights[i]
 *                 else:
 */
      __pyx_t_8 = (((PyObject *)__pyx_v_sample_weights) != Py_None);
      if (__pyx_t_8) {

        /* "wildboar/tree/_ctree.pyx":924
 *                 j += 1
 *                 if sample_weights is not None:
 *                     self.n_weighted_samples += sample_weights[i]             # <<<<<<<<<<<<<<
 *                 else:
 *                     self.n_weighted_samples += 1.0
 */
        __pyx_t_1 = PyFloat_FromDouble(__pyx_v_self->n_weighted_samples); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 924, __pyx_L1_error)
        __Pyx_GOTREF(__pyx_t_1);
        __pyx_t_2 = __Pyx_GetItemInt(((PyObject *)__pyx_v_sample_weights), __pyx_v_i, Py_ssize_t, 1, PyInt_FromSsize_t, 0, 0, 0); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 924, __pyx_L1_error)
        __Pyx_GOTREF(__pyx_t_2);
        __pyx_t_3 = PyNumber_InPlaceAdd(__pyx_t_1, __pyx_t_2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 924, __pyx_L1_error)
        __Pyx_GOTREF(__pyx_t_3);
        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
        __pyx_t_12 = __pyx_PyFloat_AsDouble(__pyx_t_3); if (unlikely((__pyx_t_12 == (double)-1) && PyErr_Occurred())) __PYX_ERR(0, 924, __pyx_L1_error)
        __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
        __pyx_v_self->n_weighted_samples = __pyx_t_12;

        /* "wildboar/tree/_ctree.pyx":923
 *                 self.samples[j] = i
 *                 j += 1
 *                 if sample_weights is not None:             # <<<<<<<<<<<<<<
 *                     self.n_weighted_samples += sample_weights[i]
 *                 else:
 */
        goto __pyx_L12;
      }

      /* "wildboar/tree/_ctree.pyx":926
 *                     self.n_weighted_samples += sample_weights[i]
 *                 else:
 *                     self.n_weighted_samples += 1.0             # <<<<<<<<<<<<<<
 * 
 *         self.n_samples = j
 */
      /*else*/ {
        __pyx_v_self->n_weighted_samples = (__pyx_v_self->n_weighted_samples + 1.0);
      }
      __pyx_L12:;

      /* "wildboar/tree/_ctree.pyx":920
 *         self.n_weighted_samples = 0.0
 *         for i in range(self.n_samples):
 *             if sample_weights is None or sample_weights[i] != 0.0:             # <<<<<<<<<<<<<<
 *                 self.samples[j] = i
 *                 j += 1
 */
    }
  }

  /* "wildboar/tree/_ctree.pyx":928
 *                     self.n_weighted_samples += 1.0
 * 
 *         self.n_samples = j             # <<<<<<<<<<<<<<
 * 
 *         if sample_weights is None:
 */
  __pyx_v_self->n_samples = __pyx_v_j;

  /* "wildboar/tree/_ctree.pyx":930
 *         self.n_samples = j
 * 
 *         if sample_weights is None:             # <<<<<<<<<<<<<<
 *             self.sample_weights = NULL
 *         else:
 */
  __pyx_t_8 = (((PyObject *)__pyx_v_sample_weights) == Py_None);
  if (__pyx_t_8) {

    /* "wildboar/tree/_ctree.pyx":931
 * 
 *         if sample_weights is None:
 *             self.sample_weights = NULL             # <<<<<<<<<<<<<<
 *         else:
 *             if sample_weights.dtype != np.double:
 */
    __pyx_v_self->sample_weights = NULL;

    /* "wildboar/tree/_ctree.pyx":930
 *         self.n_samples = j
 * 
 *         if sample_weights is None:             # <<<<<<<<<<<<<<
 *             self.sample_weights = NULL
 *         else:
 */
    goto __pyx_L13;
  }

  /* "wildboar/tree/_ctree.pyx":933
 *             self.sample_weights = NULL
 *         else:
 *             if sample_weights.dtype != np.double:             # <<<<<<<<<<<<<<
 *                 raise ValueError("unexpected dtype (%r != np.double)" % sample_weights.dtype)
 *             if sample_weights.ndim != 1:
 */
  /*else*/ {
    __pyx_t_3 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_sample_weights), __pyx_n_s_dtype); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 933, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_3);
    __Pyx_GetModuleGlobalName(__pyx_t_2, __pyx_n_s_np); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 933, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_2);
    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(__pyx_t_2, __pyx_n_s_double); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 933, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_1);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
    __pyx_t_2 = PyObject_RichCompare(__pyx_t_3, __pyx_t_1, Py_NE); __Pyx_XGOTREF(__pyx_t_2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 933, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
    __pyx_t_8 = __Pyx_PyObject_IsTrue(__pyx_t_2); if (unlikely((__pyx_t_8 < 0))) __PYX_ERR(0, 933, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
    if (unlikely(__pyx_t_8)) {

      /* "wildboar/tree/_ctree.pyx":934
 *         else:
 *             if sample_weights.dtype != np.double:
 *                 raise ValueError("unexpected dtype (%r != np.double)" % sample_weights.dtype)             # <<<<<<<<<<<<<<
 *             if sample_weights.ndim != 1:
 *                 raise ValueError("unexpected dim (%r != 1)" % sample_weights.ndim)
 */
      __pyx_t_2 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_sample_weights), __pyx_n_s_dtype); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 934, __pyx_L1_error)
      __Pyx_GOTREF(__pyx_t_2);
      __pyx_t_1 = __Pyx_PyUnicode_FormatSafe(__pyx_kp_u_unexpected_dtype_r_np_double, __pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 934, __pyx_L1_error)
      __Pyx_GOTREF(__pyx_t_1);
      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
      __pyx_t_2 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 934, __pyx_L1_error)
      __Pyx_GOTREF(__pyx_t_2);
      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
      __Pyx_Raise(__pyx_t_2, 0, 0, 0);
      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
      __PYX_ERR(0, 934, __pyx_L1_error)

      /* "wildboar/tree/_ctree.pyx":933
 *             self.sample_weights = NULL
 *         else:
 *             if sample_weights.dtype != np.double:             # <<<<<<<<<<<<<<
 *                 raise ValueError("unexpected dtype (%r != np.double)" % sample_weights.dtype)
 *             if sample_weights.ndim != 1:
 */
    }

    /* "wildboar/tree/_ctree.pyx":935
 *             if sample_weights.dtype != np.double:
 *                 raise ValueError("unexpected dtype (%r != np.double)" % sample_weights.dtype)
 *             if sample_weights.ndim != 1:             # <<<<<<<<<<<<<<
 *                 raise ValueError("unexpected dim (%r != 1)" % sample_weights.ndim)
 *             if sample_weights.strides[0] // sample_weights.itemsize != 1:
 */
    __pyx_t_5 = __pyx_f_5numpy_7ndarray_4ndim_ndim(__pyx_v_sample_weights); if (unlikely(__pyx_t_5 == ((int)-1) && PyErr_Occurred())) __PYX_ERR(0, 935, __pyx_L1_error)
    __pyx_t_8 = (__pyx_t_5 != 1);
    if (unlikely(__pyx_t_8)) {

      /* "wildboar/tree/_ctree.pyx":936
 *                 raise ValueError("unexpected dtype (%r != np.double)" % sample_weights.dtype)
 *             if sample_weights.ndim != 1:
 *                 raise ValueError("unexpected dim (%r != 1)" % sample_weights.ndim)             # <<<<<<<<<<<<<<
 *             if sample_weights.strides[0] // sample_weights.itemsize != 1:
 *                 raise ValueError("unexpected stride")
 */
      __pyx_t_5 = __pyx_f_5numpy_7ndarray_4ndim_ndim(__pyx_v_sample_weights); if (unlikely(__pyx_t_5 == ((int)-1) && PyErr_Occurred())) __PYX_ERR(0, 936, __pyx_L1_error)
      __pyx_t_2 = __Pyx_PyInt_From_int(__pyx_t_5); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 936, __pyx_L1_error)
      __Pyx_GOTREF(__pyx_t_2);
      __pyx_t_1 = PyUnicode_Format(__pyx_kp_u_unexpected_dim_r_1, __pyx_t_2); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 936, __pyx_L1_error)
      __Pyx_GOTREF(__pyx_t_1);
      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
      __pyx_t_2 = __Pyx_PyObject_CallOneArg(__pyx_builtin_ValueError, __pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 936, __pyx_L1_error)
      __Pyx_GOTREF(__pyx_t_2);
      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
      __Pyx_Raise(__pyx_t_2, 0, 0, 0);
      __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
      __PYX_ERR(0, 936, __pyx_L1_error)

      /* "wildboar/tree/_ctree.pyx":935
 *             if sample_weights.dtype != np.double:
 *                 raise ValueError("unexpected dtype (%r != np.double)" % sample_weights.dtype)
 *             if sample_weights.ndim != 1:             # <<<<<<<<<<<<<<
 *                 raise ValueError("unexpected dim (%r != 1)" % sample_weights.ndim)
 *             if sample_weights.strides[0] // sample_weights.itemsize != 1:
 */
    }

    /* "wildboar/tree/_ctree.pyx":937
 *             if sample_weights.ndim != 1:
 *                 raise ValueError("unexpected dim (%r != 1)" % sample_weights.ndim)
 *             if sample_weights.strides[0] // sample_weights.itemsize != 1:             # <<<<<<<<<<<<<<
 *                 raise ValueError("unexpected stride")
 * 
 */
    __pyx_t_13 = __pyx_f_5numpy_7ndarray_7strides_strides(__pyx_v_sample_weights); if (unlikely(__pyx_t_13 == ((npy_intp *)NULL) && PyErr_Occurred())) __PYX_ERR(0, 937, __pyx_L1_error)
    __pyx_t_2 = PyInt_FromSsize_t((__pyx_t_13[0])); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 937, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_2);
    __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_sample_weights), __pyx_n_s_itemsize); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 937, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_1);
    __pyx_t_3 = PyNumber_FloorDivide(__pyx_t_2, __pyx_t_1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 937, __pyx_L1_error)
    __Pyx_GOTREF(__pyx_t_3);
    __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
    __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
    __pyx_t_8 = (__Pyx_PyInt_BoolNeObjC(__pyx_t_3, __pyx_int_1, 1, 0)); if (unlikely((__pyx_t_8 < 0))) __PYX_ERR(0, 937, __pyx_L1_error)
    __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
    if (unlikely(__pyx_t_8)) {

      /* "wildboar/tree/_ctree.pyx":938
 *                 raise ValueError("unexpected dim (%r != 1)" % sample_weights.ndim)
 *             if sample_weights.strides[0] // sample_weights.itemsize != 1:
 *                 raise ValueError("unexpected stride")             # <<<<<<<<<<<<<<
 * 
 *             self.sample_weights = <double*> sample_weights.data
 */
      __pyx_t_3 = __Pyx_PyObject_Call(__pyx_builtin_ValueError, __pyx_tuple__5, NULL); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 938, __pyx_L1_error)
      __Pyx_GOTREF(__pyx_t_3);
      __Pyx_Raise(__pyx_t_3, 0, 0, 0);
      __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
      __PYX_ERR(0, 938, __pyx_L1_error)

      /* "wildboar/tree/_ctree.pyx":937
 *             if sample_weights.ndim != 1:
 *                 raise ValueError("unexpected dim (%r != 1)" % sample_weights.ndim)
 *             if sample_weights.strides[0] // sample_weights.itemsize != 1:             # <<<<<<<<<<<<<<
 *                 raise ValueError("unexpected stride")
 * 
 */
    }

    /* "wildboar/tree/_ctree.pyx":940
 *                 raise ValueError("unexpected stride")
 * 
 *             self.sample_weights = <double*> sample_weights.data             # <<<<<<<<<<<<<<
 * 
 *     def __dealloc__(self):
 */
    __pyx_t_14 = __pyx_f_5numpy_7ndarray_4data_data(__pyx_v_sample_weights); if (unlikely(__pyx_t_14 == ((char *)NULL) && PyErr_Occurred())) __PYX_ERR(0, 940, __pyx_L1_error)
    __pyx_v_self->sample_weights = ((double *)__pyx_t_14);
  }
  __pyx_L13:;

  /* "wildboar/tree/_ctree.pyx":879
 *     cdef size_t random_seed
 * 
 *     def __cinit__(             # <<<<<<<<<<<<<<
 *         self,
 *         np.ndarray X,
 */

  /* function exit code */
  __pyx_r = 0;
  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeBuilder.__cinit__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = -1;
  __pyx_L0:;
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":942
 *             self.sample_weights = <double*> sample_weights.data
 * 
 *     def __dealloc__(self):             # <<<<<<<<<<<<<<
 *         free(self.samples)
 *         free(self.samples_buffer)
 */

/* Python wrapper */
static void __pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_3__dealloc__(PyObject *__pyx_v_self); /*proto*/
static void __pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_3__dealloc__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__dealloc__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_2__dealloc__(((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
}

static void __pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_2__dealloc__(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self) {

  /* "wildboar/tree/_ctree.pyx":943
 * 
 *     def __dealloc__(self):
 *         free(self.samples)             # <<<<<<<<<<<<<<
 *         free(self.samples_buffer)
 *         free(self.feature_buffer)
 */
  free(__pyx_v_self->samples);

  /* "wildboar/tree/_ctree.pyx":944
 *     def __dealloc__(self):
 *         free(self.samples)
 *         free(self.samples_buffer)             # <<<<<<<<<<<<<<
 *         free(self.feature_buffer)
 * 
 */
  free(__pyx_v_self->samples_buffer);

  /* "wildboar/tree/_ctree.pyx":945
 *         free(self.samples)
 *         free(self.samples_buffer)
 *         free(self.feature_buffer)             # <<<<<<<<<<<<<<
 * 
 *     @property
 */
  free(__pyx_v_self->feature_buffer);

  /* "wildboar/tree/_ctree.pyx":942
 *             self.sample_weights = <double*> sample_weights.data
 * 
 *     def __dealloc__(self):             # <<<<<<<<<<<<<<
 *         free(self.samples)
 *         free(self.samples_buffer)
 */

  /* function exit code */
}

/* "wildboar/tree/_ctree.pyx":947
 *         free(self.feature_buffer)
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def tree_(self):
 *         return self.tree
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_5tree__1__get__(PyObject *__pyx_v_self); /*proto*/
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_5tree__1__get__(PyObject *__pyx_v_self) {
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__get__ (wrapper)", 0);
  __pyx_kwvalues = __Pyx_KwValues_VARARGS(__pyx_args, __pyx_nargs);
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_5tree____get__(((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_5tree____get__(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__get__", 1);

  /* "wildboar/tree/_ctree.pyx":949
 *     @property
 *     def tree_(self):
 *         return self.tree             # <<<<<<<<<<<<<<
 * 
 *     cpdef Py_ssize_t build_tree(self):
 */
  __Pyx_XDECREF(__pyx_r);
  __Pyx_INCREF((PyObject *)__pyx_v_self->tree);
  __pyx_r = ((PyObject *)__pyx_v_self->tree);
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":947
 *         free(self.feature_buffer)
 * 
 *     @property             # <<<<<<<<<<<<<<
 *     def tree_(self):
 *         return self.tree
 */

  /* function exit code */
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":951
 *         return self.tree
 * 
 *     cpdef Py_ssize_t build_tree(self):             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t root_node_id
 *         cdef Py_ssize_t max_depth = 0
 */

static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_5build_tree(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder_build_tree(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, int __pyx_skip_dispatch) {
  Py_ssize_t __pyx_v_root_node_id;
  Py_ssize_t __pyx_v_max_depth;
  Py_ssize_t __pyx_r;
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  PyObject *__pyx_t_4 = NULL;
  int __pyx_t_5;
  Py_ssize_t __pyx_t_6;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("build_tree", 1);
  /* Check if called by wrapper */
  if (unlikely(__pyx_skip_dispatch)) ;
  /* Check if overridden in Python */
  else if (unlikely((Py_TYPE(((PyObject *)__pyx_v_self))->tp_dictoffset != 0) || __Pyx_PyType_HasFeature(Py_TYPE(((PyObject *)__pyx_v_self)), (Py_TPFLAGS_IS_ABSTRACT | Py_TPFLAGS_HEAPTYPE)))) {
    #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_PYTYPE_LOOKUP && CYTHON_USE_TYPE_SLOTS
    static PY_UINT64_T __pyx_tp_dict_version = __PYX_DICT_VERSION_INIT, __pyx_obj_dict_version = __PYX_DICT_VERSION_INIT;
    if (unlikely(!__Pyx_object_dict_version_matches(((PyObject *)__pyx_v_self), __pyx_tp_dict_version, __pyx_obj_dict_version))) {
      PY_UINT64_T __pyx_typedict_guard = __Pyx_get_tp_dict_version(((PyObject *)__pyx_v_self));
      #endif
      __pyx_t_1 = __Pyx_PyObject_GetAttrStr(((PyObject *)__pyx_v_self), __pyx_n_s_build_tree); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 951, __pyx_L1_error)
      __Pyx_GOTREF(__pyx_t_1);
      if (!__Pyx_IsSameCFunction(__pyx_t_1, (void*) __pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_5build_tree)) {
        __Pyx_INCREF(__pyx_t_1);
        __pyx_t_3 = __pyx_t_1; __pyx_t_4 = NULL;
        __pyx_t_5 = 0;
        #if CYTHON_UNPACK_METHODS
        if (unlikely(PyMethod_Check(__pyx_t_3))) {
          __pyx_t_4 = PyMethod_GET_SELF(__pyx_t_3);
          if (likely(__pyx_t_4)) {
            PyObject* function = PyMethod_GET_FUNCTION(__pyx_t_3);
            __Pyx_INCREF(__pyx_t_4);
            __Pyx_INCREF(function);
            __Pyx_DECREF_SET(__pyx_t_3, function);
            __pyx_t_5 = 1;
          }
        }
        #endif
        {
          PyObject *__pyx_callargs[2] = {__pyx_t_4, NULL};
          __pyx_t_2 = __Pyx_PyObject_FastCall(__pyx_t_3, __pyx_callargs+1-__pyx_t_5, 0+__pyx_t_5);
          __Pyx_XDECREF(__pyx_t_4); __pyx_t_4 = 0;
          if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 951, __pyx_L1_error)
          __Pyx_GOTREF(__pyx_t_2);
          __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
        }
        __pyx_t_6 = __Pyx_PyIndex_AsSsize_t(__pyx_t_2); if (unlikely((__pyx_t_6 == (Py_ssize_t)-1) && PyErr_Occurred())) __PYX_ERR(0, 951, __pyx_L1_error)
        __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
        __pyx_r = __pyx_t_6;
        __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
        goto __pyx_L0;
      }
      #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_PYTYPE_LOOKUP && CYTHON_USE_TYPE_SLOTS
      __pyx_tp_dict_version = __Pyx_get_tp_dict_version(((PyObject *)__pyx_v_self));
      __pyx_obj_dict_version = __Pyx_get_object_dict_version(((PyObject *)__pyx_v_self));
      if (unlikely(__pyx_typedict_guard != __pyx_tp_dict_version)) {
        __pyx_tp_dict_version = __pyx_obj_dict_version = __PYX_DICT_VERSION_INIT;
      }
      #endif
      __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
      #if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_PYTYPE_LOOKUP && CYTHON_USE_TYPE_SLOTS
    }
    #endif
  }

  /* "wildboar/tree/_ctree.pyx":953
 *     cpdef Py_ssize_t build_tree(self):
 *         cdef Py_ssize_t root_node_id
 *         cdef Py_ssize_t max_depth = 0             # <<<<<<<<<<<<<<
 *         with nogil:
 *             self.feature_engineer.reset(self.td)
 */
  __pyx_v_max_depth = 0;

  /* "wildboar/tree/_ctree.pyx":954
 *         cdef Py_ssize_t root_node_id
 *         cdef Py_ssize_t max_depth = 0
 *         with nogil:             # <<<<<<<<<<<<<<
 *             self.feature_engineer.reset(self.td)
 *             root_node_id = self._build_tree(
 */
  {
      #ifdef WITH_THREAD
      PyThreadState *_save;
      _save = NULL;
      Py_UNBLOCK_THREADS
      __Pyx_FastGIL_Remember();
      #endif
      /*try:*/ {

        /* "wildboar/tree/_ctree.pyx":955
 *         cdef Py_ssize_t max_depth = 0
 *         with nogil:
 *             self.feature_engineer.reset(self.td)             # <<<<<<<<<<<<<<
 *             root_node_id = self._build_tree(
 *                 0,
 */
        ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->reset(__pyx_v_self->feature_engineer, __pyx_v_self->td); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 955, __pyx_L4_error)

        /* "wildboar/tree/_ctree.pyx":956
 *         with nogil:
 *             self.feature_engineer.reset(self.td)
 *             root_node_id = self._build_tree(             # <<<<<<<<<<<<<<
 *                 0,
 *                 self.n_samples,
 */
        __pyx_t_6 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self->__pyx_vtab)->_build_tree(__pyx_v_self, 0, __pyx_v_self->n_samples, 0, -1L, 0, NAN, (&__pyx_v_max_depth)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 956, __pyx_L4_error)
        __pyx_v_root_node_id = __pyx_t_6;
      }

      /* "wildboar/tree/_ctree.pyx":954
 *         cdef Py_ssize_t root_node_id
 *         cdef Py_ssize_t max_depth = 0
 *         with nogil:             # <<<<<<<<<<<<<<
 *             self.feature_engineer.reset(self.td)
 *             root_node_id = self._build_tree(
 */
      /*finally:*/ {
        /*normal exit:*/{
          #ifdef WITH_THREAD
          __Pyx_FastGIL_Forget();
          Py_BLOCK_THREADS
          #endif
          goto __pyx_L5;
        }
        __pyx_L4_error: {
          #ifdef WITH_THREAD
          __Pyx_FastGIL_Forget();
          Py_BLOCK_THREADS
          #endif
          goto __pyx_L1_error;
        }
        __pyx_L5:;
      }
  }

  /* "wildboar/tree/_ctree.pyx":965
 *                 &max_depth
 *             )
 *         self.tree._max_depth = max_depth             # <<<<<<<<<<<<<<
 *         return root_node_id
 * 
 */
  __pyx_v_self->tree->_max_depth = __pyx_v_max_depth;

  /* "wildboar/tree/_ctree.pyx":966
 *             )
 *         self.tree._max_depth = max_depth
 *         return root_node_id             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t new_leaf_node(
 */
  __pyx_r = __pyx_v_root_node_id;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":951
 *         return self.tree
 * 
 *     cpdef Py_ssize_t build_tree(self):             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t root_node_id
 *         cdef Py_ssize_t max_depth = 0
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  __Pyx_XDECREF(__pyx_t_4);
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeBuilder.build_tree", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  __pyx_L0:;
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_5build_tree(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_11TreeBuilder_5build_tree = {"build_tree", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_5build_tree, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_5build_tree(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("build_tree (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  if (unlikely(__pyx_nargs > 0)) {
    __Pyx_RaiseArgtupleInvalid("build_tree", 1, 0, 0, __pyx_nargs); return NULL;}
  if (unlikely(__pyx_kwds) && __Pyx_NumKwargs_FASTCALL(__pyx_kwds) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "build_tree", 0))) return NULL;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_4build_tree(((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_4build_tree(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  Py_ssize_t __pyx_t_1;
  PyObject *__pyx_t_2 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("build_tree", 1);
  __Pyx_XDECREF(__pyx_r);
  __pyx_t_1 = __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder_build_tree(__pyx_v_self, 1); if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 951, __pyx_L1_error)
  __pyx_t_2 = PyInt_FromSsize_t(__pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 951, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __pyx_r = __pyx_t_2;
  __pyx_t_2 = 0;
  goto __pyx_L0;

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeBuilder.build_tree", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __pyx_L0:;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":968
 *         return root_node_id
 * 
 *     cdef Py_ssize_t new_leaf_node(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder_new_leaf_node(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t __pyx_v_parent, int __pyx_v_is_left) {
  Py_ssize_t __pyx_v_node_id;
  Py_ssize_t __pyx_r;
  Py_ssize_t __pyx_t_1;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":975
 *         bint is_left,
 *     ) nogil:
 *         cdef Py_ssize_t node_id = self.tree.add_leaf_node(             # <<<<<<<<<<<<<<
 *             parent, is_left, end - start, self.criterion.weighted_n_total
 *         )
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self->tree->__pyx_vtab)->add_leaf_node(__pyx_v_self->tree, __pyx_v_parent, __pyx_v_is_left, (__pyx_v_end - __pyx_v_start), __pyx_v_self->criterion->weighted_n_total); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 975, __pyx_L1_error)
  __pyx_v_node_id = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":978
 *             parent, is_left, end - start, self.criterion.weighted_n_total
 *         )
 *         self.criterion.leaf_value(self.tree, node_id)             # <<<<<<<<<<<<<<
 *         return node_id
 * 
 */
  ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self->criterion->__pyx_vtab)->leaf_value(__pyx_v_self->criterion, __pyx_v_self->tree, __pyx_v_node_id); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 978, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":979
 *         )
 *         self.criterion.leaf_value(self.tree, node_id)
 *         return node_id             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t new_branch_node(
 */
  __pyx_r = __pyx_v_node_id;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":968
 *         return root_node_id
 * 
 *     cdef Py_ssize_t new_leaf_node(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeBuilder.new_leaf_node", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":981
 *         return node_id
 * 
 *     cdef Py_ssize_t new_branch_node(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder_new_branch_node(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint __pyx_v_sp, struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_persistent_feature, Py_ssize_t __pyx_v_parent, int __pyx_v_is_left) {
  Py_ssize_t __pyx_v_node_id;
  Py_ssize_t __pyx_r;
  Py_ssize_t __pyx_t_1;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":991
 *     ) nogil:
 *         cdef Py_ssize_t node_id
 *         node_id = self.tree.add_branch_node(             # <<<<<<<<<<<<<<
 *             parent,
 *             is_left,
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Tree *)__pyx_v_self->tree->__pyx_vtab)->add_branch_node(__pyx_v_self->tree, __pyx_v_parent, __pyx_v_is_left, (__pyx_v_end - __pyx_v_start), __pyx_v_self->criterion->weighted_n_total, __pyx_v_persistent_feature, __pyx_v_sp.threshold, __pyx_v_sp.impurity_improvement); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 991, __pyx_L1_error)
  __pyx_v_node_id = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":1000
 *             sp.impurity_improvement,
 *         )
 *         return node_id             # <<<<<<<<<<<<<<
 * 
 *     cdef Py_ssize_t _build_tree(
 */
  __pyx_r = __pyx_v_node_id;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":981
 *         return node_id
 * 
 *     cdef Py_ssize_t new_branch_node(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeBuilder.new_branch_node", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":1002
 *         return node_id
 * 
 *     cdef Py_ssize_t _build_tree(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

static Py_ssize_t __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder__build_tree(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t __pyx_v_depth, Py_ssize_t __pyx_v_parent, int __pyx_v_is_left, double __pyx_v_impurity, Py_ssize_t *__pyx_v_max_depth) {
  Py_ssize_t __pyx_v_n_node_samples;
  int __pyx_v_is_leaf;
  struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint __pyx_v_split;
  struct __pyx_t_8wildboar_9transform_8_feature_Feature *__pyx_v_persistent_feature;
  Py_ssize_t __pyx_v_current_node_id;
  Py_ssize_t __pyx_v_err;
  Py_ssize_t __pyx_r;
  int __pyx_t_1;
  int __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  double __pyx_t_4;
  struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint __pyx_t_5;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":1038
 *             The max depth reached in the tree
 *         """
 *         if depth > max_depth[0]:             # <<<<<<<<<<<<<<
 *             max_depth[0] = depth
 * 
 */
  __pyx_t_1 = (__pyx_v_depth > (__pyx_v_max_depth[0]));
  if (__pyx_t_1) {

    /* "wildboar/tree/_ctree.pyx":1039
 *         """
 *         if depth > max_depth[0]:
 *             max_depth[0] = depth             # <<<<<<<<<<<<<<
 * 
 *         self.criterion.init(start, end, self.samples, self.sample_weights)
 */
    (__pyx_v_max_depth[0]) = __pyx_v_depth;

    /* "wildboar/tree/_ctree.pyx":1038
 *             The max depth reached in the tree
 *         """
 *         if depth > max_depth[0]:             # <<<<<<<<<<<<<<
 *             max_depth[0] = depth
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":1041
 *             max_depth[0] = depth
 * 
 *         self.criterion.init(start, end, self.samples, self.sample_weights)             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t n_node_samples = end - start
 *         cdef bint is_leaf = (
 */
  ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self->criterion->__pyx_vtab)->init(__pyx_v_self->criterion, __pyx_v_start, __pyx_v_end, __pyx_v_self->samples, __pyx_v_self->sample_weights); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1041, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":1042
 * 
 *         self.criterion.init(start, end, self.samples, self.sample_weights)
 *         cdef Py_ssize_t n_node_samples = end - start             # <<<<<<<<<<<<<<
 *         cdef bint is_leaf = (
 *             depth >= self.max_depth
 */
  __pyx_v_n_node_samples = (__pyx_v_end - __pyx_v_start);

  /* "wildboar/tree/_ctree.pyx":1044
 *         cdef Py_ssize_t n_node_samples = end - start
 *         cdef bint is_leaf = (
 *             depth >= self.max_depth             # <<<<<<<<<<<<<<
 *             or n_node_samples < self.min_sample_split
 *             or n_node_samples < 2 * self.min_sample_leaf
 */
  __pyx_t_2 = (__pyx_v_depth >= __pyx_v_self->max_depth);
  if (!__pyx_t_2) {
  } else {
    __pyx_t_1 = __pyx_t_2;
    goto __pyx_L4_bool_binop_done;
  }

  /* "wildboar/tree/_ctree.pyx":1045
 *         cdef bint is_leaf = (
 *             depth >= self.max_depth
 *             or n_node_samples < self.min_sample_split             # <<<<<<<<<<<<<<
 *             or n_node_samples < 2 * self.min_sample_leaf
 *         )
 */
  __pyx_t_2 = (__pyx_v_n_node_samples < __pyx_v_self->min_sample_split);
  if (!__pyx_t_2) {
  } else {
    __pyx_t_1 = __pyx_t_2;
    goto __pyx_L4_bool_binop_done;
  }

  /* "wildboar/tree/_ctree.pyx":1046
 *             depth >= self.max_depth
 *             or n_node_samples < self.min_sample_split
 *             or n_node_samples < 2 * self.min_sample_leaf             # <<<<<<<<<<<<<<
 *         )
 *         if is_leaf:
 */
  __pyx_t_2 = (__pyx_v_n_node_samples < (2 * __pyx_v_self->min_sample_leaf));
  __pyx_t_1 = __pyx_t_2;
  __pyx_L4_bool_binop_done:;
  __pyx_v_is_leaf = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":1048
 *             or n_node_samples < 2 * self.min_sample_leaf
 *         )
 *         if is_leaf:             # <<<<<<<<<<<<<<
 *             return self.new_leaf_node(start, end, parent, is_left)
 * 
 */
  if (__pyx_v_is_leaf) {

    /* "wildboar/tree/_ctree.pyx":1049
 *         )
 *         if is_leaf:
 *             return self.new_leaf_node(start, end, parent, is_left)             # <<<<<<<<<<<<<<
 * 
 *         if parent < 0:
 */
    __pyx_t_3 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self->__pyx_vtab)->new_leaf_node(__pyx_v_self, __pyx_v_start, __pyx_v_end, __pyx_v_parent, __pyx_v_is_left); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1049, __pyx_L1_error)
    __pyx_r = __pyx_t_3;
    goto __pyx_L0;

    /* "wildboar/tree/_ctree.pyx":1048
 *             or n_node_samples < 2 * self.min_sample_leaf
 *         )
 *         if is_leaf:             # <<<<<<<<<<<<<<
 *             return self.new_leaf_node(start, end, parent, is_left)
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":1051
 *             return self.new_leaf_node(start, end, parent, is_left)
 * 
 *         if parent < 0:             # <<<<<<<<<<<<<<
 *             impurity = self.criterion.impurity()
 * 
 */
  __pyx_t_1 = (__pyx_v_parent < 0);
  if (__pyx_t_1) {

    /* "wildboar/tree/_ctree.pyx":1052
 * 
 *         if parent < 0:
 *             impurity = self.criterion.impurity()             # <<<<<<<<<<<<<<
 * 
 *         cdef SplitPoint split = self._split(start, end, depth, impurity)
 */
    __pyx_t_4 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self->criterion->__pyx_vtab)->impurity(__pyx_v_self->criterion); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1052, __pyx_L1_error)
    __pyx_v_impurity = __pyx_t_4;

    /* "wildboar/tree/_ctree.pyx":1051
 *             return self.new_leaf_node(start, end, parent, is_left)
 * 
 *         if parent < 0:             # <<<<<<<<<<<<<<
 *             impurity = self.criterion.impurity()
 * 
 */
  }

  /* "wildboar/tree/_ctree.pyx":1054
 *             impurity = self.criterion.impurity()
 * 
 *         cdef SplitPoint split = self._split(start, end, depth, impurity)             # <<<<<<<<<<<<<<
 * 
 *         cdef Feature *persistent_feature
 */
  __pyx_t_5 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self->__pyx_vtab)->_split(__pyx_v_self, __pyx_v_start, __pyx_v_end, __pyx_v_depth, __pyx_v_impurity); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1054, __pyx_L1_error)
  __pyx_v_split = __pyx_t_5;

  /* "wildboar/tree/_ctree.pyx":1060
 *         cdef Py_ssize_t err
 *         is_leaf = (
 *             split.split_point <= start             # <<<<<<<<<<<<<<
 *             or split.split_point >= end
 *             or split.impurity_improvement <= self.min_impurity_decrease
 */
  __pyx_t_2 = (__pyx_v_split.split_point <= __pyx_v_start);
  if (!__pyx_t_2) {
  } else {
    __pyx_t_1 = __pyx_t_2;
    goto __pyx_L9_bool_binop_done;
  }

  /* "wildboar/tree/_ctree.pyx":1061
 *         is_leaf = (
 *             split.split_point <= start
 *             or split.split_point >= end             # <<<<<<<<<<<<<<
 *             or split.impurity_improvement <= self.min_impurity_decrease
 *         )
 */
  __pyx_t_2 = (__pyx_v_split.split_point >= __pyx_v_end);
  if (!__pyx_t_2) {
  } else {
    __pyx_t_1 = __pyx_t_2;
    goto __pyx_L9_bool_binop_done;
  }

  /* "wildboar/tree/_ctree.pyx":1062
 *             split.split_point <= start
 *             or split.split_point >= end
 *             or split.impurity_improvement <= self.min_impurity_decrease             # <<<<<<<<<<<<<<
 *         )
 *         if not is_leaf:
 */
  __pyx_t_2 = (__pyx_v_split.impurity_improvement <= __pyx_v_self->min_impurity_decrease);
  __pyx_t_1 = __pyx_t_2;
  __pyx_L9_bool_binop_done:;
  __pyx_v_is_leaf = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":1064
 *             or split.impurity_improvement <= self.min_impurity_decrease
 *         )
 *         if not is_leaf:             # <<<<<<<<<<<<<<
 *             # The persistent feature is freed by the Tree
 *             persistent_feature = <Feature*> malloc(sizeof(Feature))
 */
  __pyx_t_1 = (!__pyx_v_is_leaf);
  if (__pyx_t_1) {

    /* "wildboar/tree/_ctree.pyx":1066
 *         if not is_leaf:
 *             # The persistent feature is freed by the Tree
 *             persistent_feature = <Feature*> malloc(sizeof(Feature))             # <<<<<<<<<<<<<<
 *             err = self.feature_engineer.init_persistent_feature(
 *                 self.td, &split.feature, persistent_feature
 */
    __pyx_v_persistent_feature = ((struct __pyx_t_8wildboar_9transform_8_feature_Feature *)malloc((sizeof(struct __pyx_t_8wildboar_9transform_8_feature_Feature))));

    /* "wildboar/tree/_ctree.pyx":1067
 *             # The persistent feature is freed by the Tree
 *             persistent_feature = <Feature*> malloc(sizeof(Feature))
 *             err = self.feature_engineer.init_persistent_feature(             # <<<<<<<<<<<<<<
 *                 self.td, &split.feature, persistent_feature
 *             )
 */
    __pyx_t_3 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->init_persistent_feature(__pyx_v_self->feature_engineer, __pyx_v_self->td, (&__pyx_v_split.feature), __pyx_v_persistent_feature); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1067, __pyx_L1_error)
    __pyx_v_err = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":1070
 *                 self.td, &split.feature, persistent_feature
 *             )
 *             self.feature_engineer.free_transient_feature(&split.feature)             # <<<<<<<<<<<<<<
 *             if err == -1:
 *                 return -1
 */
    ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->free_transient_feature(__pyx_v_self->feature_engineer, (&__pyx_v_split.feature)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1070, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":1071
 *             )
 *             self.feature_engineer.free_transient_feature(&split.feature)
 *             if err == -1:             # <<<<<<<<<<<<<<
 *                 return -1
 * 
 */
    __pyx_t_1 = (__pyx_v_err == -1L);
    if (__pyx_t_1) {

      /* "wildboar/tree/_ctree.pyx":1072
 *             self.feature_engineer.free_transient_feature(&split.feature)
 *             if err == -1:
 *                 return -1             # <<<<<<<<<<<<<<
 * 
 *             current_node_id = self.new_branch_node(
 */
      __pyx_r = -1L;
      goto __pyx_L0;

      /* "wildboar/tree/_ctree.pyx":1071
 *             )
 *             self.feature_engineer.free_transient_feature(&split.feature)
 *             if err == -1:             # <<<<<<<<<<<<<<
 *                 return -1
 * 
 */
    }

    /* "wildboar/tree/_ctree.pyx":1074
 *                 return -1
 * 
 *             current_node_id = self.new_branch_node(             # <<<<<<<<<<<<<<
 *                 start, end, split, persistent_feature, parent, is_left
 *             )
 */
    __pyx_t_3 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self->__pyx_vtab)->new_branch_node(__pyx_v_self, __pyx_v_start, __pyx_v_end, __pyx_v_split, __pyx_v_persistent_feature, __pyx_v_parent, __pyx_v_is_left); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1074, __pyx_L1_error)
    __pyx_v_current_node_id = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":1077
 *                 start, end, split, persistent_feature, parent, is_left
 *             )
 *             self._build_tree(             # <<<<<<<<<<<<<<
 *                 start,
 *                 split.split_point,
 */
    ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self->__pyx_vtab)->_build_tree(__pyx_v_self, __pyx_v_start, __pyx_v_split.split_point, (__pyx_v_depth + 1), __pyx_v_current_node_id, 1, __pyx_v_split.impurity_left, __pyx_v_max_depth); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1077, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":1086
 *                 max_depth,
 *             )
 *             self._build_tree(             # <<<<<<<<<<<<<<
 *                 split.split_point,
 *                 end,
 */
    ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self->__pyx_vtab)->_build_tree(__pyx_v_self, __pyx_v_split.split_point, __pyx_v_end, (__pyx_v_depth + 1), __pyx_v_current_node_id, 0, __pyx_v_split.impurity_right, __pyx_v_max_depth); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1086, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":1095
 *                 max_depth,
 *             )
 *             return current_node_id             # <<<<<<<<<<<<<<
 *         else:
 *             return self.new_leaf_node(start, end, parent, is_left)
 */
    __pyx_r = __pyx_v_current_node_id;
    goto __pyx_L0;

    /* "wildboar/tree/_ctree.pyx":1064
 *             or split.impurity_improvement <= self.min_impurity_decrease
 *         )
 *         if not is_leaf:             # <<<<<<<<<<<<<<
 *             # The persistent feature is freed by the Tree
 *             persistent_feature = <Feature*> malloc(sizeof(Feature))
 */
  }

  /* "wildboar/tree/_ctree.pyx":1097
 *             return current_node_id
 *         else:
 *             return self.new_leaf_node(start, end, parent, is_left)             # <<<<<<<<<<<<<<
 * 
 *     cdef SplitPoint _split(
 */
  /*else*/ {
    __pyx_t_3 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self->__pyx_vtab)->new_leaf_node(__pyx_v_self, __pyx_v_start, __pyx_v_end, __pyx_v_parent, __pyx_v_is_left); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1097, __pyx_L1_error)
    __pyx_r = __pyx_t_3;
    goto __pyx_L0;
  }

  /* "wildboar/tree/_ctree.pyx":1002
 *         return node_id
 * 
 *     cdef Py_ssize_t _build_tree(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeBuilder._build_tree", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = 0;
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":1099
 *             return self.new_leaf_node(start, end, parent, is_left)
 * 
 *     cdef SplitPoint _split(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

static struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder__split(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t __pyx_v_depth, double __pyx_v_parent_impurity) {
  Py_ssize_t __pyx_v_i;
  Py_ssize_t __pyx_v_n_samples;
  Py_ssize_t __pyx_v_current_split_point;
  double __pyx_v_current_threshold;
  double __pyx_v_current_impurity;
  double __pyx_v_best_impurity;
  struct __pyx_t_8wildboar_9transform_8_feature_Feature __pyx_v_current_feature;
  struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint __pyx_v_best;
  struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint __pyx_r;
  Py_ssize_t __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  int __pyx_t_4;
  double __pyx_t_5;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":1113
 *         cdef Feature current_feature
 * 
 *         n_samples = end - start             # <<<<<<<<<<<<<<
 * 
 *         best_impurity = -INFINITY
 */
  __pyx_v_n_samples = (__pyx_v_end - __pyx_v_start);

  /* "wildboar/tree/_ctree.pyx":1115
 *         n_samples = end - start
 * 
 *         best_impurity = -INFINITY             # <<<<<<<<<<<<<<
 * 
 *         current_feature.feature = NULL
 */
  __pyx_v_best_impurity = (-INFINITY);

  /* "wildboar/tree/_ctree.pyx":1117
 *         best_impurity = -INFINITY
 * 
 *         current_feature.feature = NULL             # <<<<<<<<<<<<<<
 *         current_impurity = -INFINITY
 *         current_threshold = NAN
 */
  __pyx_v_current_feature.feature = NULL;

  /* "wildboar/tree/_ctree.pyx":1118
 * 
 *         current_feature.feature = NULL
 *         current_impurity = -INFINITY             # <<<<<<<<<<<<<<
 *         current_threshold = NAN
 *         current_split_point = 0
 */
  __pyx_v_current_impurity = (-INFINITY);

  /* "wildboar/tree/_ctree.pyx":1119
 *         current_feature.feature = NULL
 *         current_impurity = -INFINITY
 *         current_threshold = NAN             # <<<<<<<<<<<<<<
 *         current_split_point = 0
 * 
 */
  __pyx_v_current_threshold = NAN;

  /* "wildboar/tree/_ctree.pyx":1120
 *         current_impurity = -INFINITY
 *         current_threshold = NAN
 *         current_split_point = 0             # <<<<<<<<<<<<<<
 * 
 *         cdef SplitPoint best
 */
  __pyx_v_current_split_point = 0;

  /* "wildboar/tree/_ctree.pyx":1123
 * 
 *         cdef SplitPoint best
 *         best.threshold = NAN             # <<<<<<<<<<<<<<
 *         best.split_point = 0
 *         best.feature.feature = NULL
 */
  __pyx_v_best.threshold = NAN;

  /* "wildboar/tree/_ctree.pyx":1124
 *         cdef SplitPoint best
 *         best.threshold = NAN
 *         best.split_point = 0             # <<<<<<<<<<<<<<
 *         best.feature.feature = NULL
 * 
 */
  __pyx_v_best.split_point = 0;

  /* "wildboar/tree/_ctree.pyx":1125
 *         best.threshold = NAN
 *         best.split_point = 0
 *         best.feature.feature = NULL             # <<<<<<<<<<<<<<
 * 
 *         for i in range(self.feature_engineer.get_n_features(self.td, depth)):
 */
  __pyx_v_best.feature.feature = NULL;

  /* "wildboar/tree/_ctree.pyx":1127
 *         best.feature.feature = NULL
 * 
 *         for i in range(self.feature_engineer.get_n_features(self.td, depth)):             # <<<<<<<<<<<<<<
 *             self.feature_engineer.next_feature(
 *                 i, self.td, self.samples + start, n_samples, &current_feature, &self.random_seed)
 */
  __pyx_t_1 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->get_n_features(__pyx_v_self->feature_engineer, __pyx_v_self->td, __pyx_v_depth); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1127, __pyx_L1_error)
  __pyx_t_2 = __pyx_t_1;
  for (__pyx_t_3 = 0; __pyx_t_3 < __pyx_t_2; __pyx_t_3+=1) {
    __pyx_v_i = __pyx_t_3;

    /* "wildboar/tree/_ctree.pyx":1128
 * 
 *         for i in range(self.feature_engineer.get_n_features(self.td, depth)):
 *             self.feature_engineer.next_feature(             # <<<<<<<<<<<<<<
 *                 i, self.td, self.samples + start, n_samples, &current_feature, &self.random_seed)
 * 
 */
    ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->next_feature(__pyx_v_self->feature_engineer, __pyx_v_i, __pyx_v_self->td, (__pyx_v_self->samples + __pyx_v_start), __pyx_v_n_samples, (&__pyx_v_current_feature), (&__pyx_v_self->random_seed)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1128, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":1131
 *                 i, self.td, self.samples + start, n_samples, &current_feature, &self.random_seed)
 * 
 *             self.feature_engineer.transient_feature_values(             # <<<<<<<<<<<<<<
 *                 &current_feature,
 *                 self.td,
 */
    ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->transient_feature_values(__pyx_v_self->feature_engineer, (&__pyx_v_current_feature), __pyx_v_self->td, (__pyx_v_self->samples + __pyx_v_start), (__pyx_v_end - __pyx_v_start), (__pyx_v_self->feature_buffer + __pyx_v_start)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1131, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":1138
 *                 self.feature_buffer + start,
 *             )
 *             argsort(self.feature_buffer + start, self.samples + start, n_samples)             # <<<<<<<<<<<<<<
 * 
 *             # All feature values are constant
 */
    __pyx_f_8wildboar_5utils_4misc_argsort((__pyx_v_self->feature_buffer + __pyx_v_start), (__pyx_v_self->samples + __pyx_v_start), __pyx_v_n_samples); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1138, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":1141
 * 
 *             # All feature values are constant
 *             if self.feature_buffer[end - 1] <= self.feature_buffer[start] + FEATURE_THRESHOLD:             # <<<<<<<<<<<<<<
 *                 continue
 * 
 */
    __pyx_t_4 = ((__pyx_v_self->feature_buffer[(__pyx_v_end - 1)]) <= ((__pyx_v_self->feature_buffer[__pyx_v_start]) + __pyx_v_8wildboar_4tree_6_ctree_FEATURE_THRESHOLD));
    if (__pyx_t_4) {

      /* "wildboar/tree/_ctree.pyx":1142
 *             # All feature values are constant
 *             if self.feature_buffer[end - 1] <= self.feature_buffer[start] + FEATURE_THRESHOLD:
 *                 continue             # <<<<<<<<<<<<<<
 * 
 *             self._partition_feature_buffer(
 */
      goto __pyx_L3_continue;

      /* "wildboar/tree/_ctree.pyx":1141
 * 
 *             # All feature values are constant
 *             if self.feature_buffer[end - 1] <= self.feature_buffer[start] + FEATURE_THRESHOLD:             # <<<<<<<<<<<<<<
 *                 continue
 * 
 */
    }

    /* "wildboar/tree/_ctree.pyx":1144
 *                 continue
 * 
 *             self._partition_feature_buffer(             # <<<<<<<<<<<<<<
 *                 start, end, &current_split_point, &current_threshold, &current_impurity
 *             )
 */
    ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self->__pyx_vtab)->_partition_feature_buffer(__pyx_v_self, __pyx_v_start, __pyx_v_end, (&__pyx_v_current_split_point), (&__pyx_v_current_threshold), (&__pyx_v_current_impurity)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1144, __pyx_L1_error)

    /* "wildboar/tree/_ctree.pyx":1147
 *                 start, end, &current_split_point, &current_threshold, &current_impurity
 *             )
 *             if current_impurity > best_impurity:             # <<<<<<<<<<<<<<
 *                 # store the order of samples in `sample_buffer`
 *                 memcpy(
 */
    __pyx_t_4 = (__pyx_v_current_impurity > __pyx_v_best_impurity);
    if (__pyx_t_4) {

      /* "wildboar/tree/_ctree.pyx":1149
 *             if current_impurity > best_impurity:
 *                 # store the order of samples in `sample_buffer`
 *                 memcpy(             # <<<<<<<<<<<<<<
 *                     self.samples_buffer,
 *                     self.samples + start,
 */
      (void)(memcpy(__pyx_v_self->samples_buffer, (__pyx_v_self->samples + __pyx_v_start), ((sizeof(Py_ssize_t)) * __pyx_v_n_samples)));

      /* "wildboar/tree/_ctree.pyx":1154
 *                     sizeof(Py_ssize_t) * n_samples,
 *                 )
 *                 best_impurity = current_impurity             # <<<<<<<<<<<<<<
 * 
 *                 best.split_point = current_split_point
 */
      __pyx_v_best_impurity = __pyx_v_current_impurity;

      /* "wildboar/tree/_ctree.pyx":1156
 *                 best_impurity = current_impurity
 * 
 *                 best.split_point = current_split_point             # <<<<<<<<<<<<<<
 *                 best.threshold = current_threshold
 *                 if best.feature.feature != NULL:
 */
      __pyx_v_best.split_point = __pyx_v_current_split_point;

      /* "wildboar/tree/_ctree.pyx":1157
 * 
 *                 best.split_point = current_split_point
 *                 best.threshold = current_threshold             # <<<<<<<<<<<<<<
 *                 if best.feature.feature != NULL:
 *                     self.feature_engineer.free_transient_feature(&best.feature)
 */
      __pyx_v_best.threshold = __pyx_v_current_threshold;

      /* "wildboar/tree/_ctree.pyx":1158
 *                 best.split_point = current_split_point
 *                 best.threshold = current_threshold
 *                 if best.feature.feature != NULL:             # <<<<<<<<<<<<<<
 *                     self.feature_engineer.free_transient_feature(&best.feature)
 *                 best.feature = current_feature
 */
      __pyx_t_4 = (__pyx_v_best.feature.feature != NULL);
      if (__pyx_t_4) {

        /* "wildboar/tree/_ctree.pyx":1159
 *                 best.threshold = current_threshold
 *                 if best.feature.feature != NULL:
 *                     self.feature_engineer.free_transient_feature(&best.feature)             # <<<<<<<<<<<<<<
 *                 best.feature = current_feature
 *             else:
 */
        ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->free_transient_feature(__pyx_v_self->feature_engineer, (&__pyx_v_best.feature)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1159, __pyx_L1_error)

        /* "wildboar/tree/_ctree.pyx":1158
 *                 best.split_point = current_split_point
 *                 best.threshold = current_threshold
 *                 if best.feature.feature != NULL:             # <<<<<<<<<<<<<<
 *                     self.feature_engineer.free_transient_feature(&best.feature)
 *                 best.feature = current_feature
 */
      }

      /* "wildboar/tree/_ctree.pyx":1160
 *                 if best.feature.feature != NULL:
 *                     self.feature_engineer.free_transient_feature(&best.feature)
 *                 best.feature = current_feature             # <<<<<<<<<<<<<<
 *             else:
 *                 self.feature_engineer.free_transient_feature(&current_feature)
 */
      __pyx_v_best.feature = __pyx_v_current_feature;

      /* "wildboar/tree/_ctree.pyx":1147
 *                 start, end, &current_split_point, &current_threshold, &current_impurity
 *             )
 *             if current_impurity > best_impurity:             # <<<<<<<<<<<<<<
 *                 # store the order of samples in `sample_buffer`
 *                 memcpy(
 */
      goto __pyx_L6;
    }

    /* "wildboar/tree/_ctree.pyx":1162
 *                 best.feature = current_feature
 *             else:
 *                 self.feature_engineer.free_transient_feature(&current_feature)             # <<<<<<<<<<<<<<
 * 
 *         # restore the best order to `samples`
 */
    /*else*/ {
      ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)__pyx_v_self->feature_engineer->__pyx_vtab)->free_transient_feature(__pyx_v_self->feature_engineer, (&__pyx_v_current_feature)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1162, __pyx_L1_error)
    }
    __pyx_L6:;
    __pyx_L3_continue:;
  }

  /* "wildboar/tree/_ctree.pyx":1165
 * 
 *         # restore the best order to `samples`
 *         memcpy(             # <<<<<<<<<<<<<<
 *             self.samples + start,
 *             self.samples_buffer,
 */
  (void)(memcpy((__pyx_v_self->samples + __pyx_v_start), __pyx_v_self->samples_buffer, ((sizeof(Py_ssize_t)) * __pyx_v_n_samples)));

  /* "wildboar/tree/_ctree.pyx":1171
 *         )
 * 
 *         self.criterion.reset()             # <<<<<<<<<<<<<<
 *         self.criterion.update(start, best.split_point)
 *         self.criterion.child_impurity(&best.impurity_left, &best.impurity_right)
 */
  ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self->criterion->__pyx_vtab)->reset(__pyx_v_self->criterion); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1171, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":1172
 * 
 *         self.criterion.reset()
 *         self.criterion.update(start, best.split_point)             # <<<<<<<<<<<<<<
 *         self.criterion.child_impurity(&best.impurity_left, &best.impurity_right)
 *         best.impurity_improvement = self.criterion.impurity_improvement(
 */
  ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self->criterion->__pyx_vtab)->update(__pyx_v_self->criterion, __pyx_v_start, __pyx_v_best.split_point); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1172, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":1173
 *         self.criterion.reset()
 *         self.criterion.update(start, best.split_point)
 *         self.criterion.child_impurity(&best.impurity_left, &best.impurity_right)             # <<<<<<<<<<<<<<
 *         best.impurity_improvement = self.criterion.impurity_improvement(
 *             parent_impurity,
 */
  ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self->criterion->__pyx_vtab)->child_impurity(__pyx_v_self->criterion, (&__pyx_v_best.impurity_left), (&__pyx_v_best.impurity_right)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1173, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":1174
 *         self.criterion.update(start, best.split_point)
 *         self.criterion.child_impurity(&best.impurity_left, &best.impurity_right)
 *         best.impurity_improvement = self.criterion.impurity_improvement(             # <<<<<<<<<<<<<<
 *             parent_impurity,
 *             best.impurity_left,
 */
  __pyx_t_5 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self->criterion->__pyx_vtab)->impurity_improvement(__pyx_v_self->criterion, __pyx_v_parent_impurity, __pyx_v_best.impurity_left, __pyx_v_best.impurity_right, __pyx_v_self->n_weighted_samples); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1174, __pyx_L1_error)
  __pyx_v_best.impurity_improvement = __pyx_t_5;

  /* "wildboar/tree/_ctree.pyx":1180
 *             self.n_weighted_samples,
 *         )
 *         return best             # <<<<<<<<<<<<<<
 * 
 *     cdef void _partition_feature_buffer(
 */
  __pyx_r = __pyx_v_best;
  goto __pyx_L0;

  /* "wildboar/tree/_ctree.pyx":1099
 *             return self.new_leaf_node(start, end, parent, is_left)
 * 
 *     cdef SplitPoint _split(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

  /* function exit code */
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeBuilder._split", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_pretend_to_initialize(&__pyx_r);
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":1182
 *         return best
 * 
 *     cdef void _partition_feature_buffer(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

static void __pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder__partition_feature_buffer(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t *__pyx_v_best_split_point, double *__pyx_v_best_threshold, double *__pyx_v_best_impurity) {
  Py_ssize_t __pyx_v_i;
  Py_ssize_t __pyx_v_pos;
  Py_ssize_t __pyx_v_new_pos;
  double __pyx_v_impurity;
  int __pyx_t_1;
  int __pyx_t_2;
  double __pyx_t_3;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":1197
 *         cdef double impurity
 * 
 *         best_impurity[0] = -INFINITY             # <<<<<<<<<<<<<<
 *         best_threshold[0] = NAN
 *         best_split_point[0] = 0
 */
  (__pyx_v_best_impurity[0]) = (-INFINITY);

  /* "wildboar/tree/_ctree.pyx":1198
 * 
 *         best_impurity[0] = -INFINITY
 *         best_threshold[0] = NAN             # <<<<<<<<<<<<<<
 *         best_split_point[0] = 0
 * 
 */
  (__pyx_v_best_threshold[0]) = NAN;

  /* "wildboar/tree/_ctree.pyx":1199
 *         best_impurity[0] = -INFINITY
 *         best_threshold[0] = NAN
 *         best_split_point[0] = 0             # <<<<<<<<<<<<<<
 * 
 *         pos = start
 */
  (__pyx_v_best_split_point[0]) = 0;

  /* "wildboar/tree/_ctree.pyx":1201
 *         best_split_point[0] = 0
 * 
 *         pos = start             # <<<<<<<<<<<<<<
 *         i = start
 *         while i < end:
 */
  __pyx_v_pos = __pyx_v_start;

  /* "wildboar/tree/_ctree.pyx":1202
 * 
 *         pos = start
 *         i = start             # <<<<<<<<<<<<<<
 *         while i < end:
 *             # Ignore split points with almost equal feature value
 */
  __pyx_v_i = __pyx_v_start;

  /* "wildboar/tree/_ctree.pyx":1203
 *         pos = start
 *         i = start
 *         while i < end:             # <<<<<<<<<<<<<<
 *             # Ignore split points with almost equal feature value
 *             while i + 1 < end and (
 */
  while (1) {
    __pyx_t_1 = (__pyx_v_i < __pyx_v_end);
    if (!__pyx_t_1) break;

    /* "wildboar/tree/_ctree.pyx":1205
 *         while i < end:
 *             # Ignore split points with almost equal feature value
 *             while i + 1 < end and (             # <<<<<<<<<<<<<<
 *                 self.feature_buffer[i + 1]
 *                 <= self.feature_buffer[i] + FEATURE_THRESHOLD
 */
    while (1) {
      __pyx_t_2 = ((__pyx_v_i + 1) < __pyx_v_end);
      if (__pyx_t_2) {
      } else {
        __pyx_t_1 = __pyx_t_2;
        goto __pyx_L7_bool_binop_done;
      }

      /* "wildboar/tree/_ctree.pyx":1207
 *             while i + 1 < end and (
 *                 self.feature_buffer[i + 1]
 *                 <= self.feature_buffer[i] + FEATURE_THRESHOLD             # <<<<<<<<<<<<<<
 *             ):
 *                 i += 1
 */
      __pyx_t_2 = ((__pyx_v_self->feature_buffer[(__pyx_v_i + 1)]) <= ((__pyx_v_self->feature_buffer[__pyx_v_i]) + __pyx_v_8wildboar_4tree_6_ctree_FEATURE_THRESHOLD));
      __pyx_t_1 = __pyx_t_2;
      __pyx_L7_bool_binop_done:;
      if (!__pyx_t_1) break;

      /* "wildboar/tree/_ctree.pyx":1209
 *                 <= self.feature_buffer[i] + FEATURE_THRESHOLD
 *             ):
 *                 i += 1             # <<<<<<<<<<<<<<
 * 
 *             i += 1
 */
      __pyx_v_i = (__pyx_v_i + 1);
    }

    /* "wildboar/tree/_ctree.pyx":1211
 *                 i += 1
 * 
 *             i += 1             # <<<<<<<<<<<<<<
 *             if i < end:
 *                 new_pos = i
 */
    __pyx_v_i = (__pyx_v_i + 1);

    /* "wildboar/tree/_ctree.pyx":1212
 * 
 *             i += 1
 *             if i < end:             # <<<<<<<<<<<<<<
 *                 new_pos = i
 *                 self.criterion.update(pos, new_pos)
 */
    __pyx_t_1 = (__pyx_v_i < __pyx_v_end);
    if (__pyx_t_1) {

      /* "wildboar/tree/_ctree.pyx":1213
 *             i += 1
 *             if i < end:
 *                 new_pos = i             # <<<<<<<<<<<<<<
 *                 self.criterion.update(pos, new_pos)
 *                 pos = new_pos
 */
      __pyx_v_new_pos = __pyx_v_i;

      /* "wildboar/tree/_ctree.pyx":1214
 *             if i < end:
 *                 new_pos = i
 *                 self.criterion.update(pos, new_pos)             # <<<<<<<<<<<<<<
 *                 pos = new_pos
 *                 impurity = self.criterion.proxy_impurity()
 */
      ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self->criterion->__pyx_vtab)->update(__pyx_v_self->criterion, __pyx_v_pos, __pyx_v_new_pos); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1214, __pyx_L1_error)

      /* "wildboar/tree/_ctree.pyx":1215
 *                 new_pos = i
 *                 self.criterion.update(pos, new_pos)
 *                 pos = new_pos             # <<<<<<<<<<<<<<
 *                 impurity = self.criterion.proxy_impurity()
 *                 if impurity > best_impurity[0]:
 */
      __pyx_v_pos = __pyx_v_new_pos;

      /* "wildboar/tree/_ctree.pyx":1216
 *                 self.criterion.update(pos, new_pos)
 *                 pos = new_pos
 *                 impurity = self.criterion.proxy_impurity()             # <<<<<<<<<<<<<<
 *                 if impurity > best_impurity[0]:
 *                     best_impurity[0] = impurity
 */
      __pyx_t_3 = ((struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion *)__pyx_v_self->criterion->__pyx_vtab)->proxy_impurity(__pyx_v_self->criterion); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1216, __pyx_L1_error)
      __pyx_v_impurity = __pyx_t_3;

      /* "wildboar/tree/_ctree.pyx":1217
 *                 pos = new_pos
 *                 impurity = self.criterion.proxy_impurity()
 *                 if impurity > best_impurity[0]:             # <<<<<<<<<<<<<<
 *                     best_impurity[0] = impurity
 *                     best_threshold[0] = (
 */
      __pyx_t_1 = (__pyx_v_impurity > (__pyx_v_best_impurity[0]));
      if (__pyx_t_1) {

        /* "wildboar/tree/_ctree.pyx":1218
 *                 impurity = self.criterion.proxy_impurity()
 *                 if impurity > best_impurity[0]:
 *                     best_impurity[0] = impurity             # <<<<<<<<<<<<<<
 *                     best_threshold[0] = (
 *                         self.feature_buffer[i - 1] / 2.0 + self.feature_buffer[i] / 2.0
 */
        (__pyx_v_best_impurity[0]) = __pyx_v_impurity;

        /* "wildboar/tree/_ctree.pyx":1219
 *                 if impurity > best_impurity[0]:
 *                     best_impurity[0] = impurity
 *                     best_threshold[0] = (             # <<<<<<<<<<<<<<
 *                         self.feature_buffer[i - 1] / 2.0 + self.feature_buffer[i] / 2.0
 *                     )
 */
        (__pyx_v_best_threshold[0]) = (((__pyx_v_self->feature_buffer[(__pyx_v_i - 1)]) / 2.0) + ((__pyx_v_self->feature_buffer[__pyx_v_i]) / 2.0));

        /* "wildboar/tree/_ctree.pyx":1222
 *                         self.feature_buffer[i - 1] / 2.0 + self.feature_buffer[i] / 2.0
 *                     )
 *                     best_split_point[0] = pos             # <<<<<<<<<<<<<<
 * 
 *                     if (
 */
        (__pyx_v_best_split_point[0]) = __pyx_v_pos;

        /* "wildboar/tree/_ctree.pyx":1225
 * 
 *                     if (
 *                         best_threshold[0] == self.feature_buffer[i]             # <<<<<<<<<<<<<<
 *                         or best_threshold[0] == INFINITY
 *                         or best_threshold[0] == -INFINITY
 */
        __pyx_t_2 = ((__pyx_v_best_threshold[0]) == (__pyx_v_self->feature_buffer[__pyx_v_i]));
        if (!__pyx_t_2) {
        } else {
          __pyx_t_1 = __pyx_t_2;
          goto __pyx_L12_bool_binop_done;
        }

        /* "wildboar/tree/_ctree.pyx":1226
 *                     if (
 *                         best_threshold[0] == self.feature_buffer[i]
 *                         or best_threshold[0] == INFINITY             # <<<<<<<<<<<<<<
 *                         or best_threshold[0] == -INFINITY
 *                     ):
 */
        __pyx_t_2 = ((__pyx_v_best_threshold[0]) == INFINITY);
        if (!__pyx_t_2) {
        } else {
          __pyx_t_1 = __pyx_t_2;
          goto __pyx_L12_bool_binop_done;
        }

        /* "wildboar/tree/_ctree.pyx":1227
 *                         best_threshold[0] == self.feature_buffer[i]
 *                         or best_threshold[0] == INFINITY
 *                         or best_threshold[0] == -INFINITY             # <<<<<<<<<<<<<<
 *                     ):
 *                         best_threshold[0] = self.feature_buffer[i - 1]
 */
        __pyx_t_2 = ((__pyx_v_best_threshold[0]) == (-INFINITY));
        __pyx_t_1 = __pyx_t_2;
        __pyx_L12_bool_binop_done:;

        /* "wildboar/tree/_ctree.pyx":1224
 *                     best_split_point[0] = pos
 * 
 *                     if (             # <<<<<<<<<<<<<<
 *                         best_threshold[0] == self.feature_buffer[i]
 *                         or best_threshold[0] == INFINITY
 */
        if (__pyx_t_1) {

          /* "wildboar/tree/_ctree.pyx":1229
 *                         or best_threshold[0] == -INFINITY
 *                     ):
 *                         best_threshold[0] = self.feature_buffer[i - 1]             # <<<<<<<<<<<<<<
 * 
 * cdef class ExtraTreeBuilder(TreeBuilder):
 */
          (__pyx_v_best_threshold[0]) = (__pyx_v_self->feature_buffer[(__pyx_v_i - 1)]);

          /* "wildboar/tree/_ctree.pyx":1224
 *                     best_split_point[0] = pos
 * 
 *                     if (             # <<<<<<<<<<<<<<
 *                         best_threshold[0] == self.feature_buffer[i]
 *                         or best_threshold[0] == INFINITY
 */
        }

        /* "wildboar/tree/_ctree.pyx":1217
 *                 pos = new_pos
 *                 impurity = self.criterion.proxy_impurity()
 *                 if impurity > best_impurity[0]:             # <<<<<<<<<<<<<<
 *                     best_impurity[0] = impurity
 *                     best_threshold[0] = (
 */
      }

      /* "wildboar/tree/_ctree.pyx":1212
 * 
 *             i += 1
 *             if i < end:             # <<<<<<<<<<<<<<
 *                 new_pos = i
 *                 self.criterion.update(pos, new_pos)
 */
    }
  }

  /* "wildboar/tree/_ctree.pyx":1182
 *         return best
 * 
 *     cdef void _partition_feature_buffer(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeBuilder._partition_feature_buffer", __pyx_clineno, __pyx_lineno, __pyx_filename);
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
}

/* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_7__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_11TreeBuilder_7__reduce_cython__ = {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_7__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_7__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__reduce_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  if (unlikely(__pyx_nargs > 0)) {
    __Pyx_RaiseArgtupleInvalid("__reduce_cython__", 1, 0, 0, __pyx_nargs); return NULL;}
  if (unlikely(__pyx_kwds) && __Pyx_NumKwargs_FASTCALL(__pyx_kwds) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__reduce_cython__", 0))) return NULL;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_6__reduce_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_6__reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__reduce_cython__", 1);

  /* "(tree fragment)":2
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 2, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeBuilder.__reduce_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_9__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_11TreeBuilder_9__setstate_cython__ = {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_9__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_9__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  CYTHON_UNUSED PyObject *__pyx_v___pyx_state = 0;
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__setstate_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_pyx_state,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_FASTCALL(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_pyx_state)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(1, 3, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__setstate_cython__") < 0)) __PYX_ERR(1, 3, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
    }
    __pyx_v___pyx_state = values[0];
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__setstate_cython__", 1, 1, 1, __pyx_nargs); __PYX_ERR(1, 3, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeBuilder.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return NULL;
  __pyx_L4_argument_unpacking_done:;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_8__setstate_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *)__pyx_v_self), __pyx_v___pyx_state);

  /* function exit code */
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_11TreeBuilder_8__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__setstate_cython__", 1);

  /* "(tree fragment)":4
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 4, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.TreeBuilder.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "wildboar/tree/_ctree.pyx":1233
 * cdef class ExtraTreeBuilder(TreeBuilder):
 * 
 *     cdef void _partition_feature_buffer(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

static void __pyx_f_8wildboar_4tree_6_ctree_16ExtraTreeBuilder__partition_feature_buffer(struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder *__pyx_v_self, Py_ssize_t __pyx_v_start, Py_ssize_t __pyx_v_end, Py_ssize_t *__pyx_v_split_point, double *__pyx_v_threshold, double *__pyx_v_impurity) {
  double __pyx_v_min_feature;
  double __pyx_v_max_feature;
  double __pyx_v_rand_threshold;
  Py_ssize_t __pyx_v_i;
  double __pyx_t_1;
  Py_ssize_t __pyx_t_2;
  Py_ssize_t __pyx_t_3;
  Py_ssize_t __pyx_t_4;
  int __pyx_t_5;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  #ifdef WITH_THREAD
  PyGILState_STATE __pyx_gilstate_save;
  #endif

  /* "wildboar/tree/_ctree.pyx":1241
 *         double *impurity,
 *     ) nogil:
 *         cdef double min_feature = self.feature_buffer[start + 1]             # <<<<<<<<<<<<<<
 *         cdef double max_feature = self.feature_buffer[end - 1]
 *         cdef double rand_threshold = rand_uniform(
 */
  __pyx_v_min_feature = (__pyx_v_self->__pyx_base.feature_buffer[(__pyx_v_start + 1)]);

  /* "wildboar/tree/_ctree.pyx":1242
 *     ) nogil:
 *         cdef double min_feature = self.feature_buffer[start + 1]
 *         cdef double max_feature = self.feature_buffer[end - 1]             # <<<<<<<<<<<<<<
 *         cdef double rand_threshold = rand_uniform(
 *             min_feature, max_feature, &self.random_seed
 */
  __pyx_v_max_feature = (__pyx_v_self->__pyx_base.feature_buffer[(__pyx_v_end - 1)]);

  /* "wildboar/tree/_ctree.pyx":1243
 *         cdef double min_feature = self.feature_buffer[start + 1]
 *         cdef double max_feature = self.feature_buffer[end - 1]
 *         cdef double rand_threshold = rand_uniform(             # <<<<<<<<<<<<<<
 *             min_feature, max_feature, &self.random_seed
 *         )
 */
  __pyx_t_1 = __pyx_f_8wildboar_5utils_4rand_rand_uniform(__pyx_v_min_feature, __pyx_v_max_feature, (&__pyx_v_self->__pyx_base.random_seed)); if (unlikely(__Pyx_ErrOccurredWithGIL())) __PYX_ERR(0, 1243, __pyx_L1_error)
  __pyx_v_rand_threshold = __pyx_t_1;

  /* "wildboar/tree/_ctree.pyx":1248
 *         cdef Py_ssize_t i
 * 
 *         split_point[0] = start             # <<<<<<<<<<<<<<
 *         for i in range(start + 1, end - 1):
 *             if self.feature_buffer[i] <= rand_threshold:
 */
  (__pyx_v_split_point[0]) = __pyx_v_start;

  /* "wildboar/tree/_ctree.pyx":1249
 * 
 *         split_point[0] = start
 *         for i in range(start + 1, end - 1):             # <<<<<<<<<<<<<<
 *             if self.feature_buffer[i] <= rand_threshold:
 *                 split_point[0] = i
 */
  __pyx_t_2 = (__pyx_v_end - 1);
  __pyx_t_3 = __pyx_t_2;
  for (__pyx_t_4 = (__pyx_v_start + 1); __pyx_t_4 < __pyx_t_3; __pyx_t_4+=1) {
    __pyx_v_i = __pyx_t_4;

    /* "wildboar/tree/_ctree.pyx":1250
 *         split_point[0] = start
 *         for i in range(start + 1, end - 1):
 *             if self.feature_buffer[i] <= rand_threshold:             # <<<<<<<<<<<<<<
 *                 split_point[0] = i
 *             else:
 */
    __pyx_t_5 = ((__pyx_v_self->__pyx_base.feature_buffer[__pyx_v_i]) <= __pyx_v_rand_threshold);
    if (__pyx_t_5) {

      /* "wildboar/tree/_ctree.pyx":1251
 *         for i in range(start + 1, end - 1):
 *             if self.feature_buffer[i] <= rand_threshold:
 *                 split_point[0] = i             # <<<<<<<<<<<<<<
 *             else:
 *                 break
 */
      (__pyx_v_split_point[0]) = __pyx_v_i;

      /* "wildboar/tree/_ctree.pyx":1250
 *         split_point[0] = start
 *         for i in range(start + 1, end - 1):
 *             if self.feature_buffer[i] <= rand_threshold:             # <<<<<<<<<<<<<<
 *                 split_point[0] = i
 *             else:
 */
      goto __pyx_L5;
    }

    /* "wildboar/tree/_ctree.pyx":1253
 *                 split_point[0] = i
 *             else:
 *                 break             # <<<<<<<<<<<<<<
 *         threshold[0] = rand_threshold
 *         impurity[0] = INFINITY
 */
    /*else*/ {
      goto __pyx_L4_break;
    }
    __pyx_L5:;
  }
  __pyx_L4_break:;

  /* "wildboar/tree/_ctree.pyx":1254
 *             else:
 *                 break
 *         threshold[0] = rand_threshold             # <<<<<<<<<<<<<<
 *         impurity[0] = INFINITY
 */
  (__pyx_v_threshold[0]) = __pyx_v_rand_threshold;

  /* "wildboar/tree/_ctree.pyx":1255
 *                 break
 *         threshold[0] = rand_threshold
 *         impurity[0] = INFINITY             # <<<<<<<<<<<<<<
 */
  (__pyx_v_impurity[0]) = INFINITY;

  /* "wildboar/tree/_ctree.pyx":1233
 * cdef class ExtraTreeBuilder(TreeBuilder):
 * 
 *     cdef void _partition_feature_buffer(             # <<<<<<<<<<<<<<
 *         self,
 *         Py_ssize_t start,
 */

  /* function exit code */
  goto __pyx_L0;
  __pyx_L1_error:;
  #ifdef WITH_THREAD
  __pyx_gilstate_save = __Pyx_PyGILState_Ensure();
  #endif
  __Pyx_AddTraceback("wildboar.tree._ctree.ExtraTreeBuilder._partition_feature_buffer", __pyx_clineno, __pyx_lineno, __pyx_filename);
  #ifdef WITH_THREAD
  __Pyx_PyGILState_Release(__pyx_gilstate_save);
  #endif
  __pyx_L0:;
}

/* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_1__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_1__reduce_cython__ = {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_1__reduce_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__reduce_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  if (unlikely(__pyx_nargs > 0)) {
    __Pyx_RaiseArgtupleInvalid("__reduce_cython__", 1, 0, 0, __pyx_nargs); return NULL;}
  if (unlikely(__pyx_kwds) && __Pyx_NumKwargs_FASTCALL(__pyx_kwds) && unlikely(!__Pyx_CheckKeywordStrings(__pyx_kwds, "__reduce_cython__", 0))) return NULL;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_16ExtraTreeBuilder___reduce_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder *)__pyx_v_self));

  /* function exit code */
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_16ExtraTreeBuilder___reduce_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder *__pyx_v_self) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__reduce_cython__", 1);

  /* "(tree fragment)":2
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 2, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.ExtraTreeBuilder.__reduce_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

/* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

/* Python wrapper */
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_3__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
); /*proto*/
static PyMethodDef __pyx_mdef_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_3__setstate_cython__ = {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0};
static PyObject *__pyx_pw_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_3__setstate_cython__(PyObject *__pyx_v_self, 
#if CYTHON_METH_FASTCALL
PyObject *const *__pyx_args, Py_ssize_t __pyx_nargs, PyObject *__pyx_kwds
#else
PyObject *__pyx_args, PyObject *__pyx_kwds
#endif
) {
  CYTHON_UNUSED PyObject *__pyx_v___pyx_state = 0;
  #if !CYTHON_METH_FASTCALL
  CYTHON_UNUSED Py_ssize_t __pyx_nargs;
  #endif
  CYTHON_UNUSED PyObject *const *__pyx_kwvalues;
  PyObject* values[1] = {0};
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  PyObject *__pyx_r = 0;
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__setstate_cython__ (wrapper)", 0);
  #if !CYTHON_METH_FASTCALL
  #if CYTHON_ASSUME_SAFE_MACROS
  __pyx_nargs = PyTuple_GET_SIZE(__pyx_args);
  #else
  __pyx_nargs = PyTuple_Size(__pyx_args); if (unlikely(__pyx_nargs < 0)) return NULL;
  #endif
  #endif
  __pyx_kwvalues = __Pyx_KwValues_FASTCALL(__pyx_args, __pyx_nargs);
  {
    PyObject **__pyx_pyargnames[] = {&__pyx_n_s_pyx_state,0};
    if (__pyx_kwds) {
      Py_ssize_t kw_args;
      switch (__pyx_nargs) {
        case  1: values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
        CYTHON_FALLTHROUGH;
        case  0: break;
        default: goto __pyx_L5_argtuple_error;
      }
      kw_args = __Pyx_NumKwargs_FASTCALL(__pyx_kwds);
      switch (__pyx_nargs) {
        case  0:
        if (likely((values[0] = __Pyx_GetKwValue_FASTCALL(__pyx_kwds, __pyx_kwvalues, __pyx_n_s_pyx_state)) != 0)) {
          (void)__Pyx_Arg_NewRef_FASTCALL(values[0]);
          kw_args--;
        }
        else if (unlikely(PyErr_Occurred())) __PYX_ERR(1, 3, __pyx_L3_error)
        else goto __pyx_L5_argtuple_error;
      }
      if (unlikely(kw_args > 0)) {
        const Py_ssize_t kwd_pos_args = __pyx_nargs;
        if (unlikely(__Pyx_ParseOptionalKeywords(__pyx_kwds, __pyx_kwvalues, __pyx_pyargnames, 0, values + 0, kwd_pos_args, "__setstate_cython__") < 0)) __PYX_ERR(1, 3, __pyx_L3_error)
      }
    } else if (unlikely(__pyx_nargs != 1)) {
      goto __pyx_L5_argtuple_error;
    } else {
      values[0] = __Pyx_Arg_FASTCALL(__pyx_args, 0);
    }
    __pyx_v___pyx_state = values[0];
  }
  goto __pyx_L6_skip;
  __pyx_L5_argtuple_error:;
  __Pyx_RaiseArgtupleInvalid("__setstate_cython__", 1, 1, 1, __pyx_nargs); __PYX_ERR(1, 3, __pyx_L3_error)
  __pyx_L6_skip:;
  goto __pyx_L4_argument_unpacking_done;
  __pyx_L3_error:;
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_AddTraceback("wildboar.tree._ctree.ExtraTreeBuilder.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __Pyx_RefNannyFinishContext();
  return NULL;
  __pyx_L4_argument_unpacking_done:;
  __pyx_r = __pyx_pf_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_2__setstate_cython__(((struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder *)__pyx_v_self), __pyx_v___pyx_state);

  /* function exit code */
  {
    Py_ssize_t __pyx_temp;
    for (__pyx_temp=0; __pyx_temp < (Py_ssize_t)(sizeof(values)/sizeof(values[0])); ++__pyx_temp) {
      __Pyx_Arg_XDECREF_FASTCALL(values[__pyx_temp]);
    }
  }
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}

static PyObject *__pyx_pf_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_2__setstate_cython__(CYTHON_UNUSED struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder *__pyx_v_self, CYTHON_UNUSED PyObject *__pyx_v___pyx_state) {
  PyObject *__pyx_r = NULL;
  __Pyx_RefNannyDeclarations
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__setstate_cython__", 1);

  /* "(tree fragment)":4
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"             # <<<<<<<<<<<<<<
 */
  __Pyx_Raise(__pyx_builtin_TypeError, __pyx_kp_s_no_default___reduce___due_to_non, 0, 0);
  __PYX_ERR(1, 4, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */

  /* function exit code */
  __pyx_L1_error:;
  __Pyx_AddTraceback("wildboar.tree._ctree.ExtraTreeBuilder.__setstate_cython__", __pyx_clineno, __pyx_lineno, __pyx_filename);
  __pyx_r = NULL;
  __Pyx_XGIVEREF(__pyx_r);
  __Pyx_RefNannyFinishContext();
  return __pyx_r;
}
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer;

static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_TreeFeatureEngineer(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *p;
  PyObject *o;
  #if CYTHON_COMPILING_IN_LIMITED_API
  allocfunc alloc_func = (allocfunc)PyType_GetSlot(t, Py_tp_alloc);
  o = alloc_func(t, 0);
  #else
  if (likely(!__Pyx_PyType_HasFeature(t, Py_TPFLAGS_IS_ABSTRACT))) {
    o = (*t->tp_alloc)(t, 0);
  } else {
    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
  }
  if (unlikely(!o)) return 0;
  #endif
  p = ((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)o);
  p->__pyx_vtab = __pyx_vtabptr_8wildboar_4tree_6_ctree_TreeFeatureEngineer;
  p->feature_engineer = ((struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *)Py_None); Py_INCREF(Py_None);
  return o;
}

static void __pyx_tp_dealloc_8wildboar_4tree_6_ctree_TreeFeatureEngineer(PyObject *o) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *p = (struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)o;
  #if CYTHON_USE_TP_FINALIZE
  if (unlikely((PY_VERSION_HEX >= 0x03080000 || __Pyx_PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE)) && __Pyx_PyObject_GetSlot(o, tp_finalize, destructor)) && !__Pyx_PyObject_GC_IsFinalized(o)) {
    if (__Pyx_PyObject_GetSlot(o, tp_dealloc, destructor) == __pyx_tp_dealloc_8wildboar_4tree_6_ctree_TreeFeatureEngineer) {
      if (PyObject_CallFinalizerFromDealloc(o)) return;
    }
  }
  #endif
  PyObject_GC_UnTrack(o);
  Py_CLEAR(p->feature_engineer);
  #if CYTHON_USE_TYPE_SLOTS || CYTHON_COMPILING_IN_PYPY
  (*Py_TYPE(o)->tp_free)(o);
  #else
  {
    freefunc tp_free = (freefunc)PyType_GetSlot(Py_TYPE(o), Py_tp_free);
    if (tp_free) tp_free(o);
  }
  #endif
}

static int __pyx_tp_traverse_8wildboar_4tree_6_ctree_TreeFeatureEngineer(PyObject *o, visitproc v, void *a) {
  int e;
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *p = (struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)o;
  if (p->feature_engineer) {
    e = (*v)(((PyObject *)p->feature_engineer), a); if (e) return e;
  }
  return 0;
}

static int __pyx_tp_clear_8wildboar_4tree_6_ctree_TreeFeatureEngineer(PyObject *o) {
  PyObject* tmp;
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *p = (struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)o;
  tmp = ((PyObject*)p->feature_engineer);
  p->feature_engineer = ((struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer *)Py_None); Py_INCREF(Py_None);
  Py_XDECREF(tmp);
  return 0;
}

static PyMethodDef __pyx_methods_8wildboar_4tree_6_ctree_TreeFeatureEngineer[] = {
  {"__reduce__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_3__reduce__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {0, 0, 0, 0}
};
#if CYTHON_USE_TYPE_SPECS
static PyType_Slot __pyx_type_8wildboar_4tree_6_ctree_TreeFeatureEngineer_slots[] = {
  {Py_tp_dealloc, (void *)__pyx_tp_dealloc_8wildboar_4tree_6_ctree_TreeFeatureEngineer},
  {Py_tp_traverse, (void *)__pyx_tp_traverse_8wildboar_4tree_6_ctree_TreeFeatureEngineer},
  {Py_tp_clear, (void *)__pyx_tp_clear_8wildboar_4tree_6_ctree_TreeFeatureEngineer},
  {Py_tp_methods, (void *)__pyx_methods_8wildboar_4tree_6_ctree_TreeFeatureEngineer},
  {Py_tp_init, (void *)__pyx_pw_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_1__init__},
  {Py_tp_new, (void *)__pyx_tp_new_8wildboar_4tree_6_ctree_TreeFeatureEngineer},
  {0, 0},
};
static PyType_Spec __pyx_type_8wildboar_4tree_6_ctree_TreeFeatureEngineer_spec = {
  "wildboar.tree._ctree.TreeFeatureEngineer",
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer),
  0,
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC,
  __pyx_type_8wildboar_4tree_6_ctree_TreeFeatureEngineer_slots,
};
#else

static PyTypeObject __pyx_type_8wildboar_4tree_6_ctree_TreeFeatureEngineer = {
  PyVarObject_HEAD_INIT(0, 0)
  "wildboar.tree._ctree.""TreeFeatureEngineer", /*tp_name*/
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_8wildboar_4tree_6_ctree_TreeFeatureEngineer, /*tp_dealloc*/
  #if PY_VERSION_HEX < 0x030800b4
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030800b4
  0, /*tp_vectorcall_offset*/
  #endif
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
  0, /*tp_doc*/
  __pyx_tp_traverse_8wildboar_4tree_6_ctree_TreeFeatureEngineer, /*tp_traverse*/
  __pyx_tp_clear_8wildboar_4tree_6_ctree_TreeFeatureEngineer, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_8wildboar_4tree_6_ctree_TreeFeatureEngineer, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  #if !CYTHON_USE_TYPE_SPECS
  0, /*tp_dictoffset*/
  #endif
  __pyx_pw_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_1__init__, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_8wildboar_4tree_6_ctree_TreeFeatureEngineer, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  #if CYTHON_USE_TP_FINALIZE
  0, /*tp_finalize*/
  #else
  NULL, /*tp_finalize*/
  #endif
  #endif
  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
  0, /*tp_vectorcall*/
  #endif
  #if __PYX_NEED_TP_PRINT_SLOT == 1
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030C0000
  0, /*tp_watched*/
  #endif
  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
  0, /*tp_pypy_flags*/
  #endif
};
#endif
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer __pyx_vtable_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer;

static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer(PyTypeObject *t, PyObject *a, PyObject *k) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer *p;
  PyObject *o = __pyx_tp_new_8wildboar_4tree_6_ctree_TreeFeatureEngineer(t, a, k);
  if (unlikely(!o)) return 0;
  p = ((struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer *)o);
  p->__pyx_base.__pyx_vtab = (struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeFeatureEngineer*)__pyx_vtabptr_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer;
  return o;
}

static PyMethodDef __pyx_methods_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer[] = {
  {"__reduce__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_3__reduce__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {0, 0, 0, 0}
};
#if CYTHON_USE_TYPE_SPECS
static PyType_Slot __pyx_type_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer_slots[] = {
  {Py_tp_traverse, (void *)__pyx_tp_traverse_8wildboar_4tree_6_ctree_TreeFeatureEngineer},
  {Py_tp_clear, (void *)__pyx_tp_clear_8wildboar_4tree_6_ctree_TreeFeatureEngineer},
  {Py_tp_methods, (void *)__pyx_methods_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer},
  {Py_tp_init, (void *)__pyx_pw_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_1__init__},
  {Py_tp_new, (void *)__pyx_tp_new_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer},
  {0, 0},
};
static PyType_Spec __pyx_type_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer_spec = {
  "wildboar.tree._ctree.DynamicTreeFeatureEngineer",
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer),
  0,
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC,
  __pyx_type_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer_slots,
};
#else

static PyTypeObject __pyx_type_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer = {
  PyVarObject_HEAD_INIT(0, 0)
  "wildboar.tree._ctree.""DynamicTreeFeatureEngineer", /*tp_name*/
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_8wildboar_4tree_6_ctree_TreeFeatureEngineer, /*tp_dealloc*/
  #if PY_VERSION_HEX < 0x030800b4
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030800b4
  0, /*tp_vectorcall_offset*/
  #endif
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
  0, /*tp_doc*/
  __pyx_tp_traverse_8wildboar_4tree_6_ctree_TreeFeatureEngineer, /*tp_traverse*/
  __pyx_tp_clear_8wildboar_4tree_6_ctree_TreeFeatureEngineer, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  #if !CYTHON_USE_TYPE_SPECS
  0, /*tp_dictoffset*/
  #endif
  __pyx_pw_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_1__init__, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  #if CYTHON_USE_TP_FINALIZE
  0, /*tp_finalize*/
  #else
  NULL, /*tp_finalize*/
  #endif
  #endif
  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
  0, /*tp_vectorcall*/
  #endif
  #if __PYX_NEED_TP_PRINT_SLOT == 1
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030C0000
  0, /*tp_watched*/
  #endif
  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
  0, /*tp_pypy_flags*/
  #endif
};
#endif
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion __pyx_vtable_8wildboar_4tree_6_ctree_Criterion;

static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_Criterion(PyTypeObject *t, CYTHON_UNUSED PyObject *a, CYTHON_UNUSED PyObject *k) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *p;
  PyObject *o;
  #if CYTHON_COMPILING_IN_LIMITED_API
  allocfunc alloc_func = (allocfunc)PyType_GetSlot(t, Py_tp_alloc);
  o = alloc_func(t, 0);
  #else
  if (likely(!__Pyx_PyType_HasFeature(t, Py_TPFLAGS_IS_ABSTRACT))) {
    o = (*t->tp_alloc)(t, 0);
  } else {
    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
  }
  if (unlikely(!o)) return 0;
  #endif
  p = ((struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *)o);
  p->__pyx_vtab = __pyx_vtabptr_8wildboar_4tree_6_ctree_Criterion;
  return o;
}

static void __pyx_tp_dealloc_8wildboar_4tree_6_ctree_Criterion(PyObject *o) {
  #if CYTHON_USE_TP_FINALIZE
  if (unlikely((PY_VERSION_HEX >= 0x03080000 || __Pyx_PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE)) && __Pyx_PyObject_GetSlot(o, tp_finalize, destructor)) && (!PyType_IS_GC(Py_TYPE(o)) || !__Pyx_PyObject_GC_IsFinalized(o))) {
    if (__Pyx_PyObject_GetSlot(o, tp_dealloc, destructor) == __pyx_tp_dealloc_8wildboar_4tree_6_ctree_Criterion) {
      if (PyObject_CallFinalizerFromDealloc(o)) return;
    }
  }
  #endif
  #if CYTHON_USE_TYPE_SLOTS || CYTHON_COMPILING_IN_PYPY
  (*Py_TYPE(o)->tp_free)(o);
  #else
  {
    freefunc tp_free = (freefunc)PyType_GetSlot(Py_TYPE(o), Py_tp_free);
    if (tp_free) tp_free(o);
  }
  #endif
}

static PyMethodDef __pyx_methods_8wildboar_4tree_6_ctree_Criterion[] = {
  {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_9Criterion_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_9Criterion_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {0, 0, 0, 0}
};
#if CYTHON_USE_TYPE_SPECS
static PyType_Slot __pyx_type_8wildboar_4tree_6_ctree_Criterion_slots[] = {
  {Py_tp_dealloc, (void *)__pyx_tp_dealloc_8wildboar_4tree_6_ctree_Criterion},
  {Py_tp_methods, (void *)__pyx_methods_8wildboar_4tree_6_ctree_Criterion},
  {Py_tp_new, (void *)__pyx_tp_new_8wildboar_4tree_6_ctree_Criterion},
  {0, 0},
};
static PyType_Spec __pyx_type_8wildboar_4tree_6_ctree_Criterion_spec = {
  "wildboar.tree._ctree.Criterion",
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion),
  0,
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE,
  __pyx_type_8wildboar_4tree_6_ctree_Criterion_slots,
};
#else

static PyTypeObject __pyx_type_8wildboar_4tree_6_ctree_Criterion = {
  PyVarObject_HEAD_INIT(0, 0)
  "wildboar.tree._ctree.""Criterion", /*tp_name*/
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_8wildboar_4tree_6_ctree_Criterion, /*tp_dealloc*/
  #if PY_VERSION_HEX < 0x030800b4
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030800b4
  0, /*tp_vectorcall_offset*/
  #endif
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
  0, /*tp_doc*/
  0, /*tp_traverse*/
  0, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_8wildboar_4tree_6_ctree_Criterion, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  #if !CYTHON_USE_TYPE_SPECS
  0, /*tp_dictoffset*/
  #endif
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_8wildboar_4tree_6_ctree_Criterion, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  #if CYTHON_USE_TP_FINALIZE
  0, /*tp_finalize*/
  #else
  NULL, /*tp_finalize*/
  #endif
  #endif
  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
  0, /*tp_vectorcall*/
  #endif
  #if __PYX_NEED_TP_PRINT_SLOT == 1
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030C0000
  0, /*tp_watched*/
  #endif
  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
  0, /*tp_pypy_flags*/
  #endif
};
#endif
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_ClassificationCriterion __pyx_vtable_8wildboar_4tree_6_ctree_ClassificationCriterion;

static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_ClassificationCriterion(PyTypeObject *t, PyObject *a, PyObject *k) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *p;
  PyObject *o = __pyx_tp_new_8wildboar_4tree_6_ctree_Criterion(t, a, k);
  if (unlikely(!o)) return 0;
  p = ((struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion *)o);
  p->__pyx_base.__pyx_vtab = (struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion*)__pyx_vtabptr_8wildboar_4tree_6_ctree_ClassificationCriterion;
  if (unlikely(__pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_1__cinit__(o, a, k) < 0)) goto bad;
  return o;
  bad:
  Py_DECREF(o); o = 0;
  return NULL;
}

static void __pyx_tp_dealloc_8wildboar_4tree_6_ctree_ClassificationCriterion(PyObject *o) {
  #if CYTHON_USE_TP_FINALIZE
  if (unlikely((PY_VERSION_HEX >= 0x03080000 || __Pyx_PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE)) && __Pyx_PyObject_GetSlot(o, tp_finalize, destructor)) && (!PyType_IS_GC(Py_TYPE(o)) || !__Pyx_PyObject_GC_IsFinalized(o))) {
    if (__Pyx_PyObject_GetSlot(o, tp_dealloc, destructor) == __pyx_tp_dealloc_8wildboar_4tree_6_ctree_ClassificationCriterion) {
      if (PyObject_CallFinalizerFromDealloc(o)) return;
    }
  }
  #endif
  {
    PyObject *etype, *eval, *etb;
    PyErr_Fetch(&etype, &eval, &etb);
    __Pyx_SET_REFCNT(o, Py_REFCNT(o) + 1);
    __pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_3__dealloc__(o);
    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
    PyErr_Restore(etype, eval, etb);
  }
  __pyx_tp_dealloc_8wildboar_4tree_6_ctree_Criterion(o);
}

static PyMethodDef __pyx_methods_8wildboar_4tree_6_ctree_ClassificationCriterion[] = {
  {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_5__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_23ClassificationCriterion_7__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {0, 0, 0, 0}
};
#if CYTHON_USE_TYPE_SPECS
static PyType_Slot __pyx_type_8wildboar_4tree_6_ctree_ClassificationCriterion_slots[] = {
  {Py_tp_dealloc, (void *)__pyx_tp_dealloc_8wildboar_4tree_6_ctree_ClassificationCriterion},
  {Py_tp_methods, (void *)__pyx_methods_8wildboar_4tree_6_ctree_ClassificationCriterion},
  {Py_tp_new, (void *)__pyx_tp_new_8wildboar_4tree_6_ctree_ClassificationCriterion},
  {0, 0},
};
static PyType_Spec __pyx_type_8wildboar_4tree_6_ctree_ClassificationCriterion_spec = {
  "wildboar.tree._ctree.ClassificationCriterion",
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion),
  0,
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE,
  __pyx_type_8wildboar_4tree_6_ctree_ClassificationCriterion_slots,
};
#else

static PyTypeObject __pyx_type_8wildboar_4tree_6_ctree_ClassificationCriterion = {
  PyVarObject_HEAD_INIT(0, 0)
  "wildboar.tree._ctree.""ClassificationCriterion", /*tp_name*/
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_ClassificationCriterion), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_8wildboar_4tree_6_ctree_ClassificationCriterion, /*tp_dealloc*/
  #if PY_VERSION_HEX < 0x030800b4
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030800b4
  0, /*tp_vectorcall_offset*/
  #endif
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
  0, /*tp_doc*/
  0, /*tp_traverse*/
  0, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_8wildboar_4tree_6_ctree_ClassificationCriterion, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  #if !CYTHON_USE_TYPE_SPECS
  0, /*tp_dictoffset*/
  #endif
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_8wildboar_4tree_6_ctree_ClassificationCriterion, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  #if CYTHON_USE_TP_FINALIZE
  0, /*tp_finalize*/
  #else
  NULL, /*tp_finalize*/
  #endif
  #endif
  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
  0, /*tp_vectorcall*/
  #endif
  #if __PYX_NEED_TP_PRINT_SLOT == 1
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030C0000
  0, /*tp_watched*/
  #endif
  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
  0, /*tp_pypy_flags*/
  #endif
};
#endif
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_GiniCriterion __pyx_vtable_8wildboar_4tree_6_ctree_GiniCriterion;

static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_GiniCriterion(PyTypeObject *t, PyObject *a, PyObject *k) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion *p;
  PyObject *o = __pyx_tp_new_8wildboar_4tree_6_ctree_ClassificationCriterion(t, a, k);
  if (unlikely(!o)) return 0;
  p = ((struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion *)o);
  p->__pyx_base.__pyx_base.__pyx_vtab = (struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion*)__pyx_vtabptr_8wildboar_4tree_6_ctree_GiniCriterion;
  return o;
}

static PyMethodDef __pyx_methods_8wildboar_4tree_6_ctree_GiniCriterion[] = {
  {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_13GiniCriterion_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_13GiniCriterion_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {0, 0, 0, 0}
};
#if CYTHON_USE_TYPE_SPECS
static PyType_Slot __pyx_type_8wildboar_4tree_6_ctree_GiniCriterion_slots[] = {
  {Py_tp_methods, (void *)__pyx_methods_8wildboar_4tree_6_ctree_GiniCriterion},
  {Py_tp_new, (void *)__pyx_tp_new_8wildboar_4tree_6_ctree_GiniCriterion},
  {0, 0},
};
static PyType_Spec __pyx_type_8wildboar_4tree_6_ctree_GiniCriterion_spec = {
  "wildboar.tree._ctree.GiniCriterion",
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion),
  0,
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE,
  __pyx_type_8wildboar_4tree_6_ctree_GiniCriterion_slots,
};
#else

static PyTypeObject __pyx_type_8wildboar_4tree_6_ctree_GiniCriterion = {
  PyVarObject_HEAD_INIT(0, 0)
  "wildboar.tree._ctree.""GiniCriterion", /*tp_name*/
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_GiniCriterion), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_8wildboar_4tree_6_ctree_ClassificationCriterion, /*tp_dealloc*/
  #if PY_VERSION_HEX < 0x030800b4
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030800b4
  0, /*tp_vectorcall_offset*/
  #endif
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
  0, /*tp_doc*/
  0, /*tp_traverse*/
  0, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_8wildboar_4tree_6_ctree_GiniCriterion, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  #if !CYTHON_USE_TYPE_SPECS
  0, /*tp_dictoffset*/
  #endif
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_8wildboar_4tree_6_ctree_GiniCriterion, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  #if CYTHON_USE_TP_FINALIZE
  0, /*tp_finalize*/
  #else
  NULL, /*tp_finalize*/
  #endif
  #endif
  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
  0, /*tp_vectorcall*/
  #endif
  #if __PYX_NEED_TP_PRINT_SLOT == 1
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030C0000
  0, /*tp_watched*/
  #endif
  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
  0, /*tp_pypy_flags*/
  #endif
};
#endif
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_EntropyCriterion __pyx_vtable_8wildboar_4tree_6_ctree_EntropyCriterion;

static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_EntropyCriterion(PyTypeObject *t, PyObject *a, PyObject *k) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion *p;
  PyObject *o = __pyx_tp_new_8wildboar_4tree_6_ctree_ClassificationCriterion(t, a, k);
  if (unlikely(!o)) return 0;
  p = ((struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion *)o);
  p->__pyx_base.__pyx_base.__pyx_vtab = (struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion*)__pyx_vtabptr_8wildboar_4tree_6_ctree_EntropyCriterion;
  return o;
}

static PyMethodDef __pyx_methods_8wildboar_4tree_6_ctree_EntropyCriterion[] = {
  {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_16EntropyCriterion_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_16EntropyCriterion_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {0, 0, 0, 0}
};
#if CYTHON_USE_TYPE_SPECS
static PyType_Slot __pyx_type_8wildboar_4tree_6_ctree_EntropyCriterion_slots[] = {
  {Py_tp_methods, (void *)__pyx_methods_8wildboar_4tree_6_ctree_EntropyCriterion},
  {Py_tp_new, (void *)__pyx_tp_new_8wildboar_4tree_6_ctree_EntropyCriterion},
  {0, 0},
};
static PyType_Spec __pyx_type_8wildboar_4tree_6_ctree_EntropyCriterion_spec = {
  "wildboar.tree._ctree.EntropyCriterion",
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion),
  0,
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE,
  __pyx_type_8wildboar_4tree_6_ctree_EntropyCriterion_slots,
};
#else

static PyTypeObject __pyx_type_8wildboar_4tree_6_ctree_EntropyCriterion = {
  PyVarObject_HEAD_INIT(0, 0)
  "wildboar.tree._ctree.""EntropyCriterion", /*tp_name*/
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_EntropyCriterion), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_8wildboar_4tree_6_ctree_ClassificationCriterion, /*tp_dealloc*/
  #if PY_VERSION_HEX < 0x030800b4
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030800b4
  0, /*tp_vectorcall_offset*/
  #endif
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
  0, /*tp_doc*/
  0, /*tp_traverse*/
  0, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_8wildboar_4tree_6_ctree_EntropyCriterion, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  #if !CYTHON_USE_TYPE_SPECS
  0, /*tp_dictoffset*/
  #endif
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_8wildboar_4tree_6_ctree_EntropyCriterion, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  #if CYTHON_USE_TP_FINALIZE
  0, /*tp_finalize*/
  #else
  NULL, /*tp_finalize*/
  #endif
  #endif
  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
  0, /*tp_vectorcall*/
  #endif
  #if __PYX_NEED_TP_PRINT_SLOT == 1
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030C0000
  0, /*tp_watched*/
  #endif
  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
  0, /*tp_pypy_flags*/
  #endif
};
#endif
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_RegressionCriterion __pyx_vtable_8wildboar_4tree_6_ctree_RegressionCriterion;

static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_RegressionCriterion(PyTypeObject *t, PyObject *a, PyObject *k) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *p;
  PyObject *o = __pyx_tp_new_8wildboar_4tree_6_ctree_Criterion(t, a, k);
  if (unlikely(!o)) return 0;
  p = ((struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion *)o);
  p->__pyx_base.__pyx_vtab = (struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion*)__pyx_vtabptr_8wildboar_4tree_6_ctree_RegressionCriterion;
  if (unlikely(__pyx_pw_8wildboar_4tree_6_ctree_19RegressionCriterion_1__cinit__(o, a, k) < 0)) goto bad;
  return o;
  bad:
  Py_DECREF(o); o = 0;
  return NULL;
}

static PyMethodDef __pyx_methods_8wildboar_4tree_6_ctree_RegressionCriterion[] = {
  {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_19RegressionCriterion_3__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_19RegressionCriterion_5__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {0, 0, 0, 0}
};
#if CYTHON_USE_TYPE_SPECS
static PyType_Slot __pyx_type_8wildboar_4tree_6_ctree_RegressionCriterion_slots[] = {
  {Py_tp_methods, (void *)__pyx_methods_8wildboar_4tree_6_ctree_RegressionCriterion},
  {Py_tp_new, (void *)__pyx_tp_new_8wildboar_4tree_6_ctree_RegressionCriterion},
  {0, 0},
};
static PyType_Spec __pyx_type_8wildboar_4tree_6_ctree_RegressionCriterion_spec = {
  "wildboar.tree._ctree.RegressionCriterion",
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion),
  0,
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE,
  __pyx_type_8wildboar_4tree_6_ctree_RegressionCriterion_slots,
};
#else

static PyTypeObject __pyx_type_8wildboar_4tree_6_ctree_RegressionCriterion = {
  PyVarObject_HEAD_INIT(0, 0)
  "wildboar.tree._ctree.""RegressionCriterion", /*tp_name*/
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_RegressionCriterion), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_8wildboar_4tree_6_ctree_Criterion, /*tp_dealloc*/
  #if PY_VERSION_HEX < 0x030800b4
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030800b4
  0, /*tp_vectorcall_offset*/
  #endif
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
  0, /*tp_doc*/
  0, /*tp_traverse*/
  0, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_8wildboar_4tree_6_ctree_RegressionCriterion, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  #if !CYTHON_USE_TYPE_SPECS
  0, /*tp_dictoffset*/
  #endif
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_8wildboar_4tree_6_ctree_RegressionCriterion, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  #if CYTHON_USE_TP_FINALIZE
  0, /*tp_finalize*/
  #else
  NULL, /*tp_finalize*/
  #endif
  #endif
  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
  0, /*tp_vectorcall*/
  #endif
  #if __PYX_NEED_TP_PRINT_SLOT == 1
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030C0000
  0, /*tp_watched*/
  #endif
  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
  0, /*tp_pypy_flags*/
  #endif
};
#endif
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_MSECriterion __pyx_vtable_8wildboar_4tree_6_ctree_MSECriterion;

static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_MSECriterion(PyTypeObject *t, PyObject *a, PyObject *k) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *p;
  PyObject *o = __pyx_tp_new_8wildboar_4tree_6_ctree_RegressionCriterion(t, a, k);
  if (unlikely(!o)) return 0;
  p = ((struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion *)o);
  p->__pyx_base.__pyx_base.__pyx_vtab = (struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Criterion*)__pyx_vtabptr_8wildboar_4tree_6_ctree_MSECriterion;
  return o;
}

static PyMethodDef __pyx_methods_8wildboar_4tree_6_ctree_MSECriterion[] = {
  {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_12MSECriterion_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_12MSECriterion_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {0, 0, 0, 0}
};
#if CYTHON_USE_TYPE_SPECS
static PyType_Slot __pyx_type_8wildboar_4tree_6_ctree_MSECriterion_slots[] = {
  {Py_tp_methods, (void *)__pyx_methods_8wildboar_4tree_6_ctree_MSECriterion},
  {Py_tp_new, (void *)__pyx_tp_new_8wildboar_4tree_6_ctree_MSECriterion},
  {0, 0},
};
static PyType_Spec __pyx_type_8wildboar_4tree_6_ctree_MSECriterion_spec = {
  "wildboar.tree._ctree.MSECriterion",
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion),
  0,
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE,
  __pyx_type_8wildboar_4tree_6_ctree_MSECriterion_slots,
};
#else

static PyTypeObject __pyx_type_8wildboar_4tree_6_ctree_MSECriterion = {
  PyVarObject_HEAD_INIT(0, 0)
  "wildboar.tree._ctree.""MSECriterion", /*tp_name*/
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_MSECriterion), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_8wildboar_4tree_6_ctree_Criterion, /*tp_dealloc*/
  #if PY_VERSION_HEX < 0x030800b4
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030800b4
  0, /*tp_vectorcall_offset*/
  #endif
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE, /*tp_flags*/
  0, /*tp_doc*/
  0, /*tp_traverse*/
  0, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_8wildboar_4tree_6_ctree_MSECriterion, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  #if !CYTHON_USE_TYPE_SPECS
  0, /*tp_dictoffset*/
  #endif
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_8wildboar_4tree_6_ctree_MSECriterion, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  #if CYTHON_USE_TP_FINALIZE
  0, /*tp_finalize*/
  #else
  NULL, /*tp_finalize*/
  #endif
  #endif
  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
  0, /*tp_vectorcall*/
  #endif
  #if __PYX_NEED_TP_PRINT_SLOT == 1
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030C0000
  0, /*tp_watched*/
  #endif
  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
  0, /*tp_pypy_flags*/
  #endif
};
#endif
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_Tree __pyx_vtable_8wildboar_4tree_6_ctree_Tree;

static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_Tree(PyTypeObject *t, PyObject *a, PyObject *k) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *p;
  PyObject *o;
  #if CYTHON_COMPILING_IN_LIMITED_API
  allocfunc alloc_func = (allocfunc)PyType_GetSlot(t, Py_tp_alloc);
  o = alloc_func(t, 0);
  #else
  if (likely(!__Pyx_PyType_HasFeature(t, Py_TPFLAGS_IS_ABSTRACT))) {
    o = (*t->tp_alloc)(t, 0);
  } else {
    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
  }
  if (unlikely(!o)) return 0;
  #endif
  p = ((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)o);
  p->__pyx_vtab = __pyx_vtabptr_8wildboar_4tree_6_ctree_Tree;
  p->feature_engineer = ((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)Py_None); Py_INCREF(Py_None);
  if (unlikely(__pyx_pw_8wildboar_4tree_6_ctree_4Tree_1__cinit__(o, a, k) < 0)) goto bad;
  return o;
  bad:
  Py_DECREF(o); o = 0;
  return NULL;
}

static void __pyx_tp_dealloc_8wildboar_4tree_6_ctree_Tree(PyObject *o) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *p = (struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)o;
  #if CYTHON_USE_TP_FINALIZE
  if (unlikely((PY_VERSION_HEX >= 0x03080000 || __Pyx_PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE)) && __Pyx_PyObject_GetSlot(o, tp_finalize, destructor)) && !__Pyx_PyObject_GC_IsFinalized(o)) {
    if (__Pyx_PyObject_GetSlot(o, tp_dealloc, destructor) == __pyx_tp_dealloc_8wildboar_4tree_6_ctree_Tree) {
      if (PyObject_CallFinalizerFromDealloc(o)) return;
    }
  }
  #endif
  PyObject_GC_UnTrack(o);
  {
    PyObject *etype, *eval, *etb;
    PyErr_Fetch(&etype, &eval, &etb);
    __Pyx_SET_REFCNT(o, Py_REFCNT(o) + 1);
    __pyx_pw_8wildboar_4tree_6_ctree_4Tree_3__dealloc__(o);
    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
    PyErr_Restore(etype, eval, etb);
  }
  Py_CLEAR(p->feature_engineer);
  #if CYTHON_USE_TYPE_SLOTS || CYTHON_COMPILING_IN_PYPY
  (*Py_TYPE(o)->tp_free)(o);
  #else
  {
    freefunc tp_free = (freefunc)PyType_GetSlot(Py_TYPE(o), Py_tp_free);
    if (tp_free) tp_free(o);
  }
  #endif
}

static int __pyx_tp_traverse_8wildboar_4tree_6_ctree_Tree(PyObject *o, visitproc v, void *a) {
  int e;
  struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *p = (struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)o;
  if (p->feature_engineer) {
    e = (*v)(((PyObject *)p->feature_engineer), a); if (e) return e;
  }
  return 0;
}

static int __pyx_tp_clear_8wildboar_4tree_6_ctree_Tree(PyObject *o) {
  PyObject* tmp;
  struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *p = (struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)o;
  tmp = ((PyObject*)p->feature_engineer);
  p->feature_engineer = ((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)Py_None); Py_INCREF(Py_None);
  Py_XDECREF(tmp);
  return 0;
}

static PyObject *__pyx_getprop_8wildboar_4tree_6_ctree_4Tree_max_depth(PyObject *o, CYTHON_UNUSED void *x) {
  return __pyx_pw_8wildboar_4tree_6_ctree_4Tree_9max_depth_1__get__(o);
}

static PyObject *__pyx_getprop_8wildboar_4tree_6_ctree_4Tree_value(PyObject *o, CYTHON_UNUSED void *x) {
  return __pyx_pw_8wildboar_4tree_6_ctree_4Tree_5value_1__get__(o);
}

static PyObject *__pyx_getprop_8wildboar_4tree_6_ctree_4Tree_feature(PyObject *o, CYTHON_UNUSED void *x) {
  return __pyx_pw_8wildboar_4tree_6_ctree_4Tree_7feature_1__get__(o);
}

static PyObject *__pyx_getprop_8wildboar_4tree_6_ctree_4Tree_n_node_samples(PyObject *o, CYTHON_UNUSED void *x) {
  return __pyx_pw_8wildboar_4tree_6_ctree_4Tree_14n_node_samples_1__get__(o);
}

static PyObject *__pyx_getprop_8wildboar_4tree_6_ctree_4Tree_n_weighted_node_samples(PyObject *o, CYTHON_UNUSED void *x) {
  return __pyx_pw_8wildboar_4tree_6_ctree_4Tree_23n_weighted_node_samples_1__get__(o);
}

static PyObject *__pyx_getprop_8wildboar_4tree_6_ctree_4Tree_left(PyObject *o, CYTHON_UNUSED void *x) {
  return __pyx_pw_8wildboar_4tree_6_ctree_4Tree_4left_1__get__(o);
}

static PyObject *__pyx_getprop_8wildboar_4tree_6_ctree_4Tree_right(PyObject *o, CYTHON_UNUSED void *x) {
  return __pyx_pw_8wildboar_4tree_6_ctree_4Tree_5right_1__get__(o);
}

static PyObject *__pyx_getprop_8wildboar_4tree_6_ctree_4Tree_threshold(PyObject *o, CYTHON_UNUSED void *x) {
  return __pyx_pw_8wildboar_4tree_6_ctree_4Tree_9threshold_1__get__(o);
}

static PyObject *__pyx_getprop_8wildboar_4tree_6_ctree_4Tree_impurity(PyObject *o, CYTHON_UNUSED void *x) {
  return __pyx_pw_8wildboar_4tree_6_ctree_4Tree_8impurity_1__get__(o);
}

static PyObject *__pyx_getprop_8wildboar_4tree_6_ctree_4Tree_node_count(PyObject *o, CYTHON_UNUSED void *x) {
  return __pyx_pw_8wildboar_4tree_6_ctree_4Tree_10node_count_1__get__(o);
}

static PyMethodDef __pyx_methods_8wildboar_4tree_6_ctree_Tree[] = {
  {"__reduce__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_4Tree_5__reduce__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {"predict", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_4Tree_7predict, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {"apply", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_4Tree_9apply, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {"decision_path", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_4Tree_11decision_path, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {0, 0, 0, 0}
};

static struct PyGetSetDef __pyx_getsets_8wildboar_4tree_6_ctree_Tree[] = {
  {(char *)"max_depth", __pyx_getprop_8wildboar_4tree_6_ctree_4Tree_max_depth, 0, (char *)0, 0},
  {(char *)"value", __pyx_getprop_8wildboar_4tree_6_ctree_4Tree_value, 0, (char *)0, 0},
  {(char *)"feature", __pyx_getprop_8wildboar_4tree_6_ctree_4Tree_feature, 0, (char *)0, 0},
  {(char *)"n_node_samples", __pyx_getprop_8wildboar_4tree_6_ctree_4Tree_n_node_samples, 0, (char *)0, 0},
  {(char *)"n_weighted_node_samples", __pyx_getprop_8wildboar_4tree_6_ctree_4Tree_n_weighted_node_samples, 0, (char *)0, 0},
  {(char *)"left", __pyx_getprop_8wildboar_4tree_6_ctree_4Tree_left, 0, (char *)0, 0},
  {(char *)"right", __pyx_getprop_8wildboar_4tree_6_ctree_4Tree_right, 0, (char *)0, 0},
  {(char *)"threshold", __pyx_getprop_8wildboar_4tree_6_ctree_4Tree_threshold, 0, (char *)0, 0},
  {(char *)"impurity", __pyx_getprop_8wildboar_4tree_6_ctree_4Tree_impurity, 0, (char *)0, 0},
  {(char *)"node_count", __pyx_getprop_8wildboar_4tree_6_ctree_4Tree_node_count, 0, (char *)0, 0},
  {0, 0, 0, 0, 0}
};
#if CYTHON_USE_TYPE_SPECS
static PyType_Slot __pyx_type_8wildboar_4tree_6_ctree_Tree_slots[] = {
  {Py_tp_dealloc, (void *)__pyx_tp_dealloc_8wildboar_4tree_6_ctree_Tree},
  {Py_tp_traverse, (void *)__pyx_tp_traverse_8wildboar_4tree_6_ctree_Tree},
  {Py_tp_clear, (void *)__pyx_tp_clear_8wildboar_4tree_6_ctree_Tree},
  {Py_tp_methods, (void *)__pyx_methods_8wildboar_4tree_6_ctree_Tree},
  {Py_tp_getset, (void *)__pyx_getsets_8wildboar_4tree_6_ctree_Tree},
  {Py_tp_new, (void *)__pyx_tp_new_8wildboar_4tree_6_ctree_Tree},
  {0, 0},
};
static PyType_Spec __pyx_type_8wildboar_4tree_6_ctree_Tree_spec = {
  "wildboar.tree._ctree.Tree",
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree),
  0,
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC,
  __pyx_type_8wildboar_4tree_6_ctree_Tree_slots,
};
#else

static PyTypeObject __pyx_type_8wildboar_4tree_6_ctree_Tree = {
  PyVarObject_HEAD_INIT(0, 0)
  "wildboar.tree._ctree.""Tree", /*tp_name*/
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_8wildboar_4tree_6_ctree_Tree, /*tp_dealloc*/
  #if PY_VERSION_HEX < 0x030800b4
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030800b4
  0, /*tp_vectorcall_offset*/
  #endif
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
  0, /*tp_doc*/
  __pyx_tp_traverse_8wildboar_4tree_6_ctree_Tree, /*tp_traverse*/
  __pyx_tp_clear_8wildboar_4tree_6_ctree_Tree, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_8wildboar_4tree_6_ctree_Tree, /*tp_methods*/
  0, /*tp_members*/
  __pyx_getsets_8wildboar_4tree_6_ctree_Tree, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  #if !CYTHON_USE_TYPE_SPECS
  0, /*tp_dictoffset*/
  #endif
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_8wildboar_4tree_6_ctree_Tree, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  #if CYTHON_USE_TP_FINALIZE
  0, /*tp_finalize*/
  #else
  NULL, /*tp_finalize*/
  #endif
  #endif
  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
  0, /*tp_vectorcall*/
  #endif
  #if __PYX_NEED_TP_PRINT_SLOT == 1
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030C0000
  0, /*tp_watched*/
  #endif
  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
  0, /*tp_pypy_flags*/
  #endif
};
#endif
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder __pyx_vtable_8wildboar_4tree_6_ctree_TreeBuilder;

static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_TreeBuilder(PyTypeObject *t, PyObject *a, PyObject *k) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *p;
  PyObject *o;
  #if CYTHON_COMPILING_IN_LIMITED_API
  allocfunc alloc_func = (allocfunc)PyType_GetSlot(t, Py_tp_alloc);
  o = alloc_func(t, 0);
  #else
  if (likely(!__Pyx_PyType_HasFeature(t, Py_TPFLAGS_IS_ABSTRACT))) {
    o = (*t->tp_alloc)(t, 0);
  } else {
    o = (PyObject *) PyBaseObject_Type.tp_new(t, __pyx_empty_tuple, 0);
  }
  if (unlikely(!o)) return 0;
  #endif
  p = ((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *)o);
  p->__pyx_vtab = __pyx_vtabptr_8wildboar_4tree_6_ctree_TreeBuilder;
  p->td = ((struct __pyx_obj_8wildboar_5utils_4data_Dataset *)Py_None); Py_INCREF(Py_None);
  p->feature_engineer = ((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)Py_None); Py_INCREF(Py_None);
  p->criterion = ((struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *)Py_None); Py_INCREF(Py_None);
  p->tree = ((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)Py_None); Py_INCREF(Py_None);
  if (unlikely(__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_1__cinit__(o, a, k) < 0)) goto bad;
  return o;
  bad:
  Py_DECREF(o); o = 0;
  return NULL;
}

static void __pyx_tp_dealloc_8wildboar_4tree_6_ctree_TreeBuilder(PyObject *o) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *p = (struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *)o;
  #if CYTHON_USE_TP_FINALIZE
  if (unlikely((PY_VERSION_HEX >= 0x03080000 || __Pyx_PyType_HasFeature(Py_TYPE(o), Py_TPFLAGS_HAVE_FINALIZE)) && __Pyx_PyObject_GetSlot(o, tp_finalize, destructor)) && !__Pyx_PyObject_GC_IsFinalized(o)) {
    if (__Pyx_PyObject_GetSlot(o, tp_dealloc, destructor) == __pyx_tp_dealloc_8wildboar_4tree_6_ctree_TreeBuilder) {
      if (PyObject_CallFinalizerFromDealloc(o)) return;
    }
  }
  #endif
  PyObject_GC_UnTrack(o);
  {
    PyObject *etype, *eval, *etb;
    PyErr_Fetch(&etype, &eval, &etb);
    __Pyx_SET_REFCNT(o, Py_REFCNT(o) + 1);
    __pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_3__dealloc__(o);
    __Pyx_SET_REFCNT(o, Py_REFCNT(o) - 1);
    PyErr_Restore(etype, eval, etb);
  }
  Py_CLEAR(p->td);
  Py_CLEAR(p->feature_engineer);
  Py_CLEAR(p->criterion);
  Py_CLEAR(p->tree);
  #if CYTHON_USE_TYPE_SLOTS || CYTHON_COMPILING_IN_PYPY
  (*Py_TYPE(o)->tp_free)(o);
  #else
  {
    freefunc tp_free = (freefunc)PyType_GetSlot(Py_TYPE(o), Py_tp_free);
    if (tp_free) tp_free(o);
  }
  #endif
}

static int __pyx_tp_traverse_8wildboar_4tree_6_ctree_TreeBuilder(PyObject *o, visitproc v, void *a) {
  int e;
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *p = (struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *)o;
  if (p->td) {
    e = (*v)(((PyObject *)p->td), a); if (e) return e;
  }
  if (p->feature_engineer) {
    e = (*v)(((PyObject *)p->feature_engineer), a); if (e) return e;
  }
  if (p->criterion) {
    e = (*v)(((PyObject *)p->criterion), a); if (e) return e;
  }
  if (p->tree) {
    e = (*v)(((PyObject *)p->tree), a); if (e) return e;
  }
  return 0;
}

static int __pyx_tp_clear_8wildboar_4tree_6_ctree_TreeBuilder(PyObject *o) {
  PyObject* tmp;
  struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *p = (struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *)o;
  tmp = ((PyObject*)p->td);
  p->td = ((struct __pyx_obj_8wildboar_5utils_4data_Dataset *)Py_None); Py_INCREF(Py_None);
  Py_XDECREF(tmp);
  tmp = ((PyObject*)p->feature_engineer);
  p->feature_engineer = ((struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *)Py_None); Py_INCREF(Py_None);
  Py_XDECREF(tmp);
  tmp = ((PyObject*)p->criterion);
  p->criterion = ((struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *)Py_None); Py_INCREF(Py_None);
  Py_XDECREF(tmp);
  tmp = ((PyObject*)p->tree);
  p->tree = ((struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *)Py_None); Py_INCREF(Py_None);
  Py_XDECREF(tmp);
  return 0;
}

static PyObject *__pyx_getprop_8wildboar_4tree_6_ctree_11TreeBuilder_tree_(PyObject *o, CYTHON_UNUSED void *x) {
  return __pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_5tree__1__get__(o);
}

static PyMethodDef __pyx_methods_8wildboar_4tree_6_ctree_TreeBuilder[] = {
  {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_7__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_11TreeBuilder_9__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {0, 0, 0, 0}
};

static struct PyGetSetDef __pyx_getsets_8wildboar_4tree_6_ctree_TreeBuilder[] = {
  {(char *)"tree_", __pyx_getprop_8wildboar_4tree_6_ctree_11TreeBuilder_tree_, 0, (char *)0, 0},
  {0, 0, 0, 0, 0}
};
#if CYTHON_USE_TYPE_SPECS
static PyType_Slot __pyx_type_8wildboar_4tree_6_ctree_TreeBuilder_slots[] = {
  {Py_tp_dealloc, (void *)__pyx_tp_dealloc_8wildboar_4tree_6_ctree_TreeBuilder},
  {Py_tp_traverse, (void *)__pyx_tp_traverse_8wildboar_4tree_6_ctree_TreeBuilder},
  {Py_tp_clear, (void *)__pyx_tp_clear_8wildboar_4tree_6_ctree_TreeBuilder},
  {Py_tp_methods, (void *)__pyx_methods_8wildboar_4tree_6_ctree_TreeBuilder},
  {Py_tp_getset, (void *)__pyx_getsets_8wildboar_4tree_6_ctree_TreeBuilder},
  {Py_tp_new, (void *)__pyx_tp_new_8wildboar_4tree_6_ctree_TreeBuilder},
  {0, 0},
};
static PyType_Spec __pyx_type_8wildboar_4tree_6_ctree_TreeBuilder_spec = {
  "wildboar.tree._ctree.TreeBuilder",
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder),
  0,
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC,
  __pyx_type_8wildboar_4tree_6_ctree_TreeBuilder_slots,
};
#else

static PyTypeObject __pyx_type_8wildboar_4tree_6_ctree_TreeBuilder = {
  PyVarObject_HEAD_INIT(0, 0)
  "wildboar.tree._ctree.""TreeBuilder", /*tp_name*/
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_8wildboar_4tree_6_ctree_TreeBuilder, /*tp_dealloc*/
  #if PY_VERSION_HEX < 0x030800b4
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030800b4
  0, /*tp_vectorcall_offset*/
  #endif
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
  0, /*tp_doc*/
  __pyx_tp_traverse_8wildboar_4tree_6_ctree_TreeBuilder, /*tp_traverse*/
  __pyx_tp_clear_8wildboar_4tree_6_ctree_TreeBuilder, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_8wildboar_4tree_6_ctree_TreeBuilder, /*tp_methods*/
  0, /*tp_members*/
  __pyx_getsets_8wildboar_4tree_6_ctree_TreeBuilder, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  #if !CYTHON_USE_TYPE_SPECS
  0, /*tp_dictoffset*/
  #endif
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_8wildboar_4tree_6_ctree_TreeBuilder, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  #if CYTHON_USE_TP_FINALIZE
  0, /*tp_finalize*/
  #else
  NULL, /*tp_finalize*/
  #endif
  #endif
  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
  0, /*tp_vectorcall*/
  #endif
  #if __PYX_NEED_TP_PRINT_SLOT == 1
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030C0000
  0, /*tp_watched*/
  #endif
  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
  0, /*tp_pypy_flags*/
  #endif
};
#endif
static struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_ExtraTreeBuilder __pyx_vtable_8wildboar_4tree_6_ctree_ExtraTreeBuilder;

static PyObject *__pyx_tp_new_8wildboar_4tree_6_ctree_ExtraTreeBuilder(PyTypeObject *t, PyObject *a, PyObject *k) {
  struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder *p;
  PyObject *o = __pyx_tp_new_8wildboar_4tree_6_ctree_TreeBuilder(t, a, k);
  if (unlikely(!o)) return 0;
  p = ((struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder *)o);
  p->__pyx_base.__pyx_vtab = (struct __pyx_vtabstruct_8wildboar_4tree_6_ctree_TreeBuilder*)__pyx_vtabptr_8wildboar_4tree_6_ctree_ExtraTreeBuilder;
  return o;
}

static PyMethodDef __pyx_methods_8wildboar_4tree_6_ctree_ExtraTreeBuilder[] = {
  {"__reduce_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_1__reduce_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {"__setstate_cython__", (PyCFunction)(void*)(__Pyx_PyCFunction_FastCallWithKeywords)__pyx_pw_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_3__setstate_cython__, __Pyx_METH_FASTCALL|METH_KEYWORDS, 0},
  {0, 0, 0, 0}
};
#if CYTHON_USE_TYPE_SPECS
static PyType_Slot __pyx_type_8wildboar_4tree_6_ctree_ExtraTreeBuilder_slots[] = {
  {Py_tp_traverse, (void *)__pyx_tp_traverse_8wildboar_4tree_6_ctree_TreeBuilder},
  {Py_tp_clear, (void *)__pyx_tp_clear_8wildboar_4tree_6_ctree_TreeBuilder},
  {Py_tp_methods, (void *)__pyx_methods_8wildboar_4tree_6_ctree_ExtraTreeBuilder},
  {Py_tp_new, (void *)__pyx_tp_new_8wildboar_4tree_6_ctree_ExtraTreeBuilder},
  {0, 0},
};
static PyType_Spec __pyx_type_8wildboar_4tree_6_ctree_ExtraTreeBuilder_spec = {
  "wildboar.tree._ctree.ExtraTreeBuilder",
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder),
  0,
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC,
  __pyx_type_8wildboar_4tree_6_ctree_ExtraTreeBuilder_slots,
};
#else

static PyTypeObject __pyx_type_8wildboar_4tree_6_ctree_ExtraTreeBuilder = {
  PyVarObject_HEAD_INIT(0, 0)
  "wildboar.tree._ctree.""ExtraTreeBuilder", /*tp_name*/
  sizeof(struct __pyx_obj_8wildboar_4tree_6_ctree_ExtraTreeBuilder), /*tp_basicsize*/
  0, /*tp_itemsize*/
  __pyx_tp_dealloc_8wildboar_4tree_6_ctree_TreeBuilder, /*tp_dealloc*/
  #if PY_VERSION_HEX < 0x030800b4
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030800b4
  0, /*tp_vectorcall_offset*/
  #endif
  0, /*tp_getattr*/
  0, /*tp_setattr*/
  #if PY_MAJOR_VERSION < 3
  0, /*tp_compare*/
  #endif
  #if PY_MAJOR_VERSION >= 3
  0, /*tp_as_async*/
  #endif
  0, /*tp_repr*/
  0, /*tp_as_number*/
  0, /*tp_as_sequence*/
  0, /*tp_as_mapping*/
  0, /*tp_hash*/
  0, /*tp_call*/
  0, /*tp_str*/
  0, /*tp_getattro*/
  0, /*tp_setattro*/
  0, /*tp_as_buffer*/
  Py_TPFLAGS_DEFAULT|Py_TPFLAGS_HAVE_VERSION_TAG|Py_TPFLAGS_CHECKTYPES|Py_TPFLAGS_HAVE_NEWBUFFER|Py_TPFLAGS_BASETYPE|Py_TPFLAGS_HAVE_GC, /*tp_flags*/
  0, /*tp_doc*/
  __pyx_tp_traverse_8wildboar_4tree_6_ctree_TreeBuilder, /*tp_traverse*/
  __pyx_tp_clear_8wildboar_4tree_6_ctree_TreeBuilder, /*tp_clear*/
  0, /*tp_richcompare*/
  0, /*tp_weaklistoffset*/
  0, /*tp_iter*/
  0, /*tp_iternext*/
  __pyx_methods_8wildboar_4tree_6_ctree_ExtraTreeBuilder, /*tp_methods*/
  0, /*tp_members*/
  0, /*tp_getset*/
  0, /*tp_base*/
  0, /*tp_dict*/
  0, /*tp_descr_get*/
  0, /*tp_descr_set*/
  #if !CYTHON_USE_TYPE_SPECS
  0, /*tp_dictoffset*/
  #endif
  0, /*tp_init*/
  0, /*tp_alloc*/
  __pyx_tp_new_8wildboar_4tree_6_ctree_ExtraTreeBuilder, /*tp_new*/
  0, /*tp_free*/
  0, /*tp_is_gc*/
  0, /*tp_bases*/
  0, /*tp_mro*/
  0, /*tp_cache*/
  0, /*tp_subclasses*/
  0, /*tp_weaklist*/
  0, /*tp_del*/
  0, /*tp_version_tag*/
  #if PY_VERSION_HEX >= 0x030400a1
  #if CYTHON_USE_TP_FINALIZE
  0, /*tp_finalize*/
  #else
  NULL, /*tp_finalize*/
  #endif
  #endif
  #if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
  0, /*tp_vectorcall*/
  #endif
  #if __PYX_NEED_TP_PRINT_SLOT == 1
  0, /*tp_print*/
  #endif
  #if PY_VERSION_HEX >= 0x030C0000
  0, /*tp_watched*/
  #endif
  #if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
  0, /*tp_pypy_flags*/
  #endif
};
#endif

static PyMethodDef __pyx_methods[] = {
  {0, 0, 0, 0}
};
#ifndef CYTHON_SMALL_CODE
#if defined(__clang__)
    #define CYTHON_SMALL_CODE
#elif defined(__GNUC__) && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 3))
    #define CYTHON_SMALL_CODE __attribute__((cold))
#else
    #define CYTHON_SMALL_CODE
#endif
#endif
/* #### Code section: pystring_table ### */

static int __Pyx_CreateStringTabAndInitStrings(void) {
  __Pyx_StringTabEntry __pyx_string_tab[] = {
    {&__pyx_n_s_ClassificationCriterion, __pyx_k_ClassificationCriterion, sizeof(__pyx_k_ClassificationCriterion), 0, 0, 1, 1},
    {&__pyx_n_s_ClassificationCriterion___reduce, __pyx_k_ClassificationCriterion___reduce, sizeof(__pyx_k_ClassificationCriterion___reduce), 0, 0, 1, 1},
    {&__pyx_n_s_ClassificationCriterion___setsta, __pyx_k_ClassificationCriterion___setsta, sizeof(__pyx_k_ClassificationCriterion___setsta), 0, 0, 1, 1},
    {&__pyx_n_s_Criterion, __pyx_k_Criterion, sizeof(__pyx_k_Criterion), 0, 0, 1, 1},
    {&__pyx_n_s_Criterion___reduce_cython, __pyx_k_Criterion___reduce_cython, sizeof(__pyx_k_Criterion___reduce_cython), 0, 0, 1, 1},
    {&__pyx_n_s_Criterion___setstate_cython, __pyx_k_Criterion___setstate_cython, sizeof(__pyx_k_Criterion___setstate_cython), 0, 0, 1, 1},
    {&__pyx_n_s_DISTANCE_MEASURE, __pyx_k_DISTANCE_MEASURE, sizeof(__pyx_k_DISTANCE_MEASURE), 0, 0, 1, 1},
    {&__pyx_n_s_DynamicTreeFeatureEngineer, __pyx_k_DynamicTreeFeatureEngineer, sizeof(__pyx_k_DynamicTreeFeatureEngineer), 0, 0, 1, 1},
    {&__pyx_n_s_DynamicTreeFeatureEngineer___red, __pyx_k_DynamicTreeFeatureEngineer___red, sizeof(__pyx_k_DynamicTreeFeatureEngineer___red), 0, 0, 1, 1},
    {&__pyx_n_s_EntropyCriterion, __pyx_k_EntropyCriterion, sizeof(__pyx_k_EntropyCriterion), 0, 0, 1, 1},
    {&__pyx_n_s_EntropyCriterion___reduce_cython, __pyx_k_EntropyCriterion___reduce_cython, sizeof(__pyx_k_EntropyCriterion___reduce_cython), 0, 0, 1, 1},
    {&__pyx_n_s_EntropyCriterion___setstate_cyth, __pyx_k_EntropyCriterion___setstate_cyth, sizeof(__pyx_k_EntropyCriterion___setstate_cyth), 0, 0, 1, 1},
    {&__pyx_n_s_ExtraTreeBuilder, __pyx_k_ExtraTreeBuilder, sizeof(__pyx_k_ExtraTreeBuilder), 0, 0, 1, 1},
    {&__pyx_n_s_ExtraTreeBuilder___reduce_cython, __pyx_k_ExtraTreeBuilder___reduce_cython, sizeof(__pyx_k_ExtraTreeBuilder___reduce_cython), 0, 0, 1, 1},
    {&__pyx_n_s_ExtraTreeBuilder___setstate_cyth, __pyx_k_ExtraTreeBuilder___setstate_cyth, sizeof(__pyx_k_ExtraTreeBuilder___setstate_cyth), 0, 0, 1, 1},
    {&__pyx_n_s_GiniCriterion, __pyx_k_GiniCriterion, sizeof(__pyx_k_GiniCriterion), 0, 0, 1, 1},
    {&__pyx_n_s_GiniCriterion___reduce_cython, __pyx_k_GiniCriterion___reduce_cython, sizeof(__pyx_k_GiniCriterion___reduce_cython), 0, 0, 1, 1},
    {&__pyx_n_s_GiniCriterion___setstate_cython, __pyx_k_GiniCriterion___setstate_cython, sizeof(__pyx_k_GiniCriterion___setstate_cython), 0, 0, 1, 1},
    {&__pyx_n_s_ImportError, __pyx_k_ImportError, sizeof(__pyx_k_ImportError), 0, 0, 1, 1},
    {&__pyx_n_s_MSECriterion, __pyx_k_MSECriterion, sizeof(__pyx_k_MSECriterion), 0, 0, 1, 1},
    {&__pyx_n_s_MSECriterion___reduce_cython, __pyx_k_MSECriterion___reduce_cython, sizeof(__pyx_k_MSECriterion___reduce_cython), 0, 0, 1, 1},
    {&__pyx_n_s_MSECriterion___setstate_cython, __pyx_k_MSECriterion___setstate_cython, sizeof(__pyx_k_MSECriterion___setstate_cython), 0, 0, 1, 1},
    {&__pyx_n_s_MemoryError, __pyx_k_MemoryError, sizeof(__pyx_k_MemoryError), 0, 0, 1, 1},
    {&__pyx_n_s_RegressionCriterion, __pyx_k_RegressionCriterion, sizeof(__pyx_k_RegressionCriterion), 0, 0, 1, 1},
    {&__pyx_n_s_RegressionCriterion___reduce_cyt, __pyx_k_RegressionCriterion___reduce_cyt, sizeof(__pyx_k_RegressionCriterion___reduce_cyt), 0, 0, 1, 1},
    {&__pyx_n_s_RegressionCriterion___setstate_c, __pyx_k_RegressionCriterion___setstate_c, sizeof(__pyx_k_RegressionCriterion___setstate_c), 0, 0, 1, 1},
    {&__pyx_n_s_Tree, __pyx_k_Tree, sizeof(__pyx_k_Tree), 0, 0, 1, 1},
    {&__pyx_n_s_TreeBuilder, __pyx_k_TreeBuilder, sizeof(__pyx_k_TreeBuilder), 0, 0, 1, 1},
    {&__pyx_n_s_TreeBuilder___reduce_cython, __pyx_k_TreeBuilder___reduce_cython, sizeof(__pyx_k_TreeBuilder___reduce_cython), 0, 0, 1, 1},
    {&__pyx_n_s_TreeBuilder___setstate_cython, __pyx_k_TreeBuilder___setstate_cython, sizeof(__pyx_k_TreeBuilder___setstate_cython), 0, 0, 1, 1},
    {&__pyx_n_s_TreeBuilder_build_tree, __pyx_k_TreeBuilder_build_tree, sizeof(__pyx_k_TreeBuilder_build_tree), 0, 0, 1, 1},
    {&__pyx_n_s_TreeFeatureEngineer, __pyx_k_TreeFeatureEngineer, sizeof(__pyx_k_TreeFeatureEngineer), 0, 0, 1, 1},
    {&__pyx_n_s_TreeFeatureEngineer___reduce, __pyx_k_TreeFeatureEngineer___reduce, sizeof(__pyx_k_TreeFeatureEngineer___reduce), 0, 0, 1, 1},
    {&__pyx_n_s_Tree___reduce, __pyx_k_Tree___reduce, sizeof(__pyx_k_Tree___reduce), 0, 0, 1, 1},
    {&__pyx_n_s_Tree_apply, __pyx_k_Tree_apply, sizeof(__pyx_k_Tree_apply), 0, 0, 1, 1},
    {&__pyx_n_s_Tree_decision_path, __pyx_k_Tree_decision_path, sizeof(__pyx_k_Tree_decision_path), 0, 0, 1, 1},
    {&__pyx_n_s_Tree_predict, __pyx_k_Tree_predict, sizeof(__pyx_k_Tree_predict), 0, 0, 1, 1},
    {&__pyx_n_s_TypeError, __pyx_k_TypeError, sizeof(__pyx_k_TypeError), 0, 0, 1, 1},
    {&__pyx_n_s_ValueError, __pyx_k_ValueError, sizeof(__pyx_k_ValueError), 0, 0, 1, 1},
    {&__pyx_n_s_X, __pyx_k_X, sizeof(__pyx_k_X), 0, 0, 1, 1},
    {&__pyx_kp_u_X_should_be_np_ndarray_got, __pyx_k_X_should_be_np_ndarray_got, sizeof(__pyx_k_X_should_be_np_ndarray_got), 0, 1, 0, 0},
    {&__pyx_kp_u__3, __pyx_k__3, sizeof(__pyx_k__3), 0, 1, 0, 0},
    {&__pyx_n_s__38, __pyx_k__38, sizeof(__pyx_k__38), 0, 0, 1, 1},
    {&__pyx_kp_u__4, __pyx_k__4, sizeof(__pyx_k__4), 0, 1, 0, 0},
    {&__pyx_n_s__6, __pyx_k__6, sizeof(__pyx_k__6), 0, 0, 1, 1},
    {&__pyx_kp_u__7, __pyx_k__7, sizeof(__pyx_k__7), 0, 1, 0, 0},
    {&__pyx_n_s_alpha, __pyx_k_alpha, sizeof(__pyx_k_alpha), 0, 0, 1, 1},
    {&__pyx_n_s_apply, __pyx_k_apply, sizeof(__pyx_k_apply), 0, 0, 1, 1},
    {&__pyx_n_s_asyncio_coroutines, __pyx_k_asyncio_coroutines, sizeof(__pyx_k_asyncio_coroutines), 0, 0, 1, 1},
    {&__pyx_n_s_axis, __pyx_k_axis, sizeof(__pyx_k_axis), 0, 0, 1, 1},
    {&__pyx_n_s_build_tree, __pyx_k_build_tree, sizeof(__pyx_k_build_tree), 0, 0, 1, 1},
    {&__pyx_n_u_c, __pyx_k_c, sizeof(__pyx_k_c), 0, 1, 0, 1},
    {&__pyx_n_s_capacity, __pyx_k_capacity, sizeof(__pyx_k_capacity), 0, 0, 1, 1},
    {&__pyx_n_s_check_dataset, __pyx_k_check_dataset, sizeof(__pyx_k_check_dataset), 0, 0, 1, 1},
    {&__pyx_n_s_class, __pyx_k_class, sizeof(__pyx_k_class), 0, 0, 1, 1},
    {&__pyx_n_s_cline_in_traceback, __pyx_k_cline_in_traceback, sizeof(__pyx_k_cline_in_traceback), 0, 0, 1, 1},
    {&__pyx_n_u_clip, __pyx_k_clip, sizeof(__pyx_k_clip), 0, 1, 0, 1},
    {&__pyx_n_s_criterion, __pyx_k_criterion, sizeof(__pyx_k_criterion), 0, 0, 1, 1},
    {&__pyx_n_s_csr_matrix, __pyx_k_csr_matrix, sizeof(__pyx_k_csr_matrix), 0, 0, 1, 1},
    {&__pyx_n_s_decision_path, __pyx_k_decision_path, sizeof(__pyx_k_decision_path), 0, 0, 1, 1},
    {&__pyx_kp_u_disable, __pyx_k_disable, sizeof(__pyx_k_disable), 0, 1, 0, 0},
    {&__pyx_n_s_distance, __pyx_k_distance, sizeof(__pyx_k_distance), 0, 0, 1, 1},
    {&__pyx_n_s_double, __pyx_k_double, sizeof(__pyx_k_double), 0, 0, 1, 1},
    {&__pyx_n_s_dtype, __pyx_k_dtype, sizeof(__pyx_k_dtype), 0, 0, 1, 1},
    {&__pyx_n_s_empty, __pyx_k_empty, sizeof(__pyx_k_empty), 0, 0, 1, 1},
    {&__pyx_kp_u_enable, __pyx_k_enable, sizeof(__pyx_k_enable), 0, 1, 0, 0},
    {&__pyx_n_s_feature, __pyx_k_feature, sizeof(__pyx_k_feature), 0, 0, 1, 1},
    {&__pyx_n_s_feature_engineer, __pyx_k_feature_engineer, sizeof(__pyx_k_feature_engineer), 0, 0, 1, 1},
    {&__pyx_n_s_feature_value, __pyx_k_feature_value, sizeof(__pyx_k_feature_value), 0, 0, 1, 1},
    {&__pyx_n_s_features, __pyx_k_features, sizeof(__pyx_k_features), 0, 0, 1, 1},
    {&__pyx_kp_u_gc, __pyx_k_gc, sizeof(__pyx_k_gc), 0, 1, 0, 0},
    {&__pyx_n_s_getstate, __pyx_k_getstate, sizeof(__pyx_k_getstate), 0, 0, 1, 1},
    {&__pyx_n_s_i, __pyx_k_i, sizeof(__pyx_k_i), 0, 0, 1, 1},
    {&__pyx_n_s_i_stride, __pyx_k_i_stride, sizeof(__pyx_k_i_stride), 0, 0, 1, 1},
    {&__pyx_n_s_import, __pyx_k_import, sizeof(__pyx_k_import), 0, 0, 1, 1},
    {&__pyx_n_s_impurity, __pyx_k_impurity, sizeof(__pyx_k_impurity), 0, 0, 1, 1},
    {&__pyx_n_s_init, __pyx_k_init, sizeof(__pyx_k_init), 0, 0, 1, 1},
    {&__pyx_n_s_initializing, __pyx_k_initializing, sizeof(__pyx_k_initializing), 0, 0, 1, 1},
    {&__pyx_n_s_intc, __pyx_k_intc, sizeof(__pyx_k_intc), 0, 0, 1, 1},
    {&__pyx_n_s_intp, __pyx_k_intp, sizeof(__pyx_k_intp), 0, 0, 1, 1},
    {&__pyx_n_s_is_coroutine, __pyx_k_is_coroutine, sizeof(__pyx_k_is_coroutine), 0, 0, 1, 1},
    {&__pyx_kp_u_isenabled, __pyx_k_isenabled, sizeof(__pyx_k_isenabled), 0, 1, 0, 0},
    {&__pyx_n_s_itemsize, __pyx_k_itemsize, sizeof(__pyx_k_itemsize), 0, 0, 1, 1},
    {&__pyx_n_s_left, __pyx_k_left, sizeof(__pyx_k_left), 0, 0, 1, 1},
    {&__pyx_n_s_main, __pyx_k_main, sizeof(__pyx_k_main), 0, 0, 1, 1},
    {&__pyx_n_s_make_tree, __pyx_k_make_tree, sizeof(__pyx_k_make_tree), 0, 0, 1, 1},
    {&__pyx_n_s_max_depth, __pyx_k_max_depth, sizeof(__pyx_k_max_depth), 0, 0, 1, 1},
    {&__pyx_n_s_min_impurity_decrease, __pyx_k_min_impurity_decrease, sizeof(__pyx_k_min_impurity_decrease), 0, 0, 1, 1},
    {&__pyx_n_s_min_sample_leaf, __pyx_k_min_sample_leaf, sizeof(__pyx_k_min_sample_leaf), 0, 0, 1, 1},
    {&__pyx_n_s_min_sample_split, __pyx_k_min_sample_split, sizeof(__pyx_k_min_sample_split), 0, 0, 1, 1},
    {&__pyx_n_s_mode, __pyx_k_mode, sizeof(__pyx_k_mode), 0, 0, 1, 1},
    {&__pyx_n_s_n_labels, __pyx_k_n_labels, sizeof(__pyx_k_n_labels), 0, 0, 1, 1},
    {&__pyx_n_s_n_node_samples, __pyx_k_n_node_samples, sizeof(__pyx_k_n_node_samples), 0, 0, 1, 1},
    {&__pyx_n_s_n_stride, __pyx_k_n_stride, sizeof(__pyx_k_n_stride), 0, 0, 1, 1},
    {&__pyx_n_s_n_weighted_node_samples, __pyx_k_n_weighted_node_samples, sizeof(__pyx_k_n_weighted_node_samples), 0, 0, 1, 1},
    {&__pyx_n_s_name, __pyx_k_name, sizeof(__pyx_k_name), 0, 0, 1, 1},
    {&__pyx_kp_s_no_default___reduce___due_to_non, __pyx_k_no_default___reduce___due_to_non, sizeof(__pyx_k_no_default___reduce___due_to_non), 0, 0, 1, 0},
    {&__pyx_n_s_node_count, __pyx_k_node_count, sizeof(__pyx_k_node_count), 0, 0, 1, 1},
    {&__pyx_n_s_node_index, __pyx_k_node_index, sizeof(__pyx_k_node_index), 0, 0, 1, 1},
    {&__pyx_n_s_np, __pyx_k_np, sizeof(__pyx_k_np), 0, 0, 1, 1},
    {&__pyx_n_s_numpy, __pyx_k_numpy, sizeof(__pyx_k_numpy), 0, 0, 1, 1},
    {&__pyx_kp_u_numpy_core_multiarray_failed_to, __pyx_k_numpy_core_multiarray_failed_to, sizeof(__pyx_k_numpy_core_multiarray_failed_to), 0, 1, 0, 0},
    {&__pyx_kp_u_numpy_core_umath_failed_to_impor, __pyx_k_numpy_core_umath_failed_to_impor, sizeof(__pyx_k_numpy_core_umath_failed_to_impor), 0, 1, 0, 0},
    {&__pyx_n_s_order, __pyx_k_order, sizeof(__pyx_k_order), 0, 0, 1, 1},
    {&__pyx_n_s_out, __pyx_k_out, sizeof(__pyx_k_out), 0, 0, 1, 1},
    {&__pyx_n_s_out_data, __pyx_k_out_data, sizeof(__pyx_k_out_data), 0, 0, 1, 1},
    {&__pyx_n_s_predict, __pyx_k_predict, sizeof(__pyx_k_predict), 0, 0, 1, 1},
    {&__pyx_n_s_pyx_state, __pyx_k_pyx_state, sizeof(__pyx_k_pyx_state), 0, 0, 1, 1},
    {&__pyx_n_s_pyx_vtable, __pyx_k_pyx_vtable, sizeof(__pyx_k_pyx_vtable), 0, 0, 1, 1},
    {&__pyx_n_s_randint, __pyx_k_randint, sizeof(__pyx_k_randint), 0, 0, 1, 1},
    {&__pyx_n_s_random_state, __pyx_k_random_state, sizeof(__pyx_k_random_state), 0, 0, 1, 1},
    {&__pyx_n_s_range, __pyx_k_range, sizeof(__pyx_k_range), 0, 0, 1, 1},
    {&__pyx_n_s_reduce, __pyx_k_reduce, sizeof(__pyx_k_reduce), 0, 0, 1, 1},
    {&__pyx_n_s_reduce_cython, __pyx_k_reduce_cython, sizeof(__pyx_k_reduce_cython), 0, 0, 1, 1},
    {&__pyx_n_s_reduce_ex, __pyx_k_reduce_ex, sizeof(__pyx_k_reduce_ex), 0, 0, 1, 1},
    {&__pyx_n_s_reshape, __pyx_k_reshape, sizeof(__pyx_k_reshape), 0, 0, 1, 1},
    {&__pyx_n_s_right, __pyx_k_right, sizeof(__pyx_k_right), 0, 0, 1, 1},
    {&__pyx_n_s_sample_weights, __pyx_k_sample_weights, sizeof(__pyx_k_sample_weights), 0, 0, 1, 1},
    {&__pyx_n_s_scipy_sparse, __pyx_k_scipy_sparse, sizeof(__pyx_k_scipy_sparse), 0, 0, 1, 1},
    {&__pyx_n_s_self, __pyx_k_self, sizeof(__pyx_k_self), 0, 0, 1, 1},
    {&__pyx_kp_s_self_sample_weight_self_samples, __pyx_k_self_sample_weight_self_samples, sizeof(__pyx_k_self_sample_weight_self_samples), 0, 0, 1, 0},
    {&__pyx_n_s_setstate, __pyx_k_setstate, sizeof(__pyx_k_setstate), 0, 0, 1, 1},
    {&__pyx_n_s_setstate_cython, __pyx_k_setstate_cython, sizeof(__pyx_k_setstate_cython), 0, 0, 1, 1},
    {&__pyx_n_s_spec, __pyx_k_spec, sizeof(__pyx_k_spec), 0, 0, 1, 1},
    {&__pyx_kp_s_src_wildboar_tree__ctree_pyx, __pyx_k_src_wildboar_tree__ctree_pyx, sizeof(__pyx_k_src_wildboar_tree__ctree_pyx), 0, 0, 1, 0},
    {&__pyx_kp_s_stringsource, __pyx_k_stringsource, sizeof(__pyx_k_stringsource), 0, 0, 1, 0},
    {&__pyx_n_s_super, __pyx_k_super, sizeof(__pyx_k_super), 0, 0, 1, 1},
    {&__pyx_n_s_take, __pyx_k_take, sizeof(__pyx_k_take), 0, 0, 1, 1},
    {&__pyx_n_s_test, __pyx_k_test, sizeof(__pyx_k_test), 0, 0, 1, 1},
    {&__pyx_n_s_threshold, __pyx_k_threshold, sizeof(__pyx_k_threshold), 0, 0, 1, 1},
    {&__pyx_n_s_tree, __pyx_k_tree, sizeof(__pyx_k_tree), 0, 0, 1, 1},
    {&__pyx_n_s_ts, __pyx_k_ts, sizeof(__pyx_k_ts), 0, 0, 1, 1},
    {&__pyx_kp_u_unexpected_dim_r_1, __pyx_k_unexpected_dim_r_1, sizeof(__pyx_k_unexpected_dim_r_1), 0, 1, 0, 0},
    {&__pyx_kp_u_unexpected_dtype, __pyx_k_unexpected_dtype, sizeof(__pyx_k_unexpected_dtype), 0, 1, 0, 0},
    {&__pyx_kp_u_unexpected_dtype_r_np_double, __pyx_k_unexpected_dtype_r_np_double, sizeof(__pyx_k_unexpected_dtype_r_np_double), 0, 1, 0, 0},
    {&__pyx_kp_u_unexpected_stride, __pyx_k_unexpected_stride, sizeof(__pyx_k_unexpected_stride), 0, 1, 0, 0},
    {&__pyx_n_s_utils_data, __pyx_k_utils_data, sizeof(__pyx_k_utils_data), 0, 0, 1, 1},
    {&__pyx_n_s_value, __pyx_k_value, sizeof(__pyx_k_value), 0, 0, 1, 1},
    {&__pyx_n_s_wildboar_tree__ctree, __pyx_k_wildboar_tree__ctree, sizeof(__pyx_k_wildboar_tree__ctree), 0, 0, 1, 1},
    {&__pyx_n_s_y, __pyx_k_y, sizeof(__pyx_k_y), 0, 0, 1, 1},
    {&__pyx_n_s_zeros, __pyx_k_zeros, sizeof(__pyx_k_zeros), 0, 0, 1, 1},
    {0, 0, 0, 0, 0, 0, 0}
  };
  return __Pyx_InitStrings(__pyx_string_tab);
}
/* #### Code section: cached_builtins ### */
static CYTHON_SMALL_CODE int __Pyx_InitCachedBuiltins(void) {
  __pyx_builtin_super = __Pyx_GetBuiltinName(__pyx_n_s_super); if (!__pyx_builtin_super) __PYX_ERR(0, 135, __pyx_L1_error)
  __pyx_builtin_TypeError = __Pyx_GetBuiltinName(__pyx_n_s_TypeError); if (!__pyx_builtin_TypeError) __PYX_ERR(1, 2, __pyx_L1_error)
  __pyx_builtin_ValueError = __Pyx_GetBuiltinName(__pyx_n_s_ValueError); if (!__pyx_builtin_ValueError) __PYX_ERR(0, 215, __pyx_L1_error)
  __pyx_builtin_range = __Pyx_GetBuiltinName(__pyx_n_s_range); if (!__pyx_builtin_range) __PYX_ERR(0, 245, __pyx_L1_error)
  __pyx_builtin_MemoryError = __Pyx_GetBuiltinName(__pyx_n_s_MemoryError); if (!__pyx_builtin_MemoryError) __PYX_ERR(0, 914, __pyx_L1_error)
  __pyx_builtin_ImportError = __Pyx_GetBuiltinName(__pyx_n_s_ImportError); if (!__pyx_builtin_ImportError) __PYX_ERR(2, 983, __pyx_L1_error)
  return 0;
  __pyx_L1_error:;
  return -1;
}
/* #### Code section: cached_constants ### */

static CYTHON_SMALL_CODE int __Pyx_InitCachedConstants(void) {
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__Pyx_InitCachedConstants", 0);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":983
 *         __pyx_import_array()
 *     except Exception:
 *         raise ImportError("numpy.core.multiarray failed to import")             # <<<<<<<<<<<<<<
 * 
 * cdef inline int import_umath() except -1:
 */
  __pyx_tuple_ = PyTuple_Pack(1, __pyx_kp_u_numpy_core_multiarray_failed_to); if (unlikely(!__pyx_tuple_)) __PYX_ERR(2, 983, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_tuple_);
  __Pyx_GIVEREF(__pyx_tuple_);

  /* "../../../../../tmp/build-env-c_hvzdj1/lib/python3.9/site-packages/numpy/__init__.cython-30.pxd":989
 *         _import_umath()
 *     except Exception:
 *         raise ImportError("numpy.core.umath failed to import")             # <<<<<<<<<<<<<<
 * 
 * cdef inline int import_ufunc() except -1:
 */
  __pyx_tuple__2 = PyTuple_Pack(1, __pyx_kp_u_numpy_core_umath_failed_to_impor); if (unlikely(!__pyx_tuple__2)) __PYX_ERR(2, 989, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_tuple__2);
  __Pyx_GIVEREF(__pyx_tuple__2);

  /* "wildboar/tree/_ctree.pyx":938
 *                 raise ValueError("unexpected dim (%r != 1)" % sample_weights.ndim)
 *             if sample_weights.strides[0] // sample_weights.itemsize != 1:
 *                 raise ValueError("unexpected stride")             # <<<<<<<<<<<<<<
 * 
 *             self.sample_weights = <double*> sample_weights.data
 */
  __pyx_tuple__5 = PyTuple_Pack(1, __pyx_kp_u_unexpected_stride); if (unlikely(!__pyx_tuple__5)) __PYX_ERR(0, 938, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_tuple__5);
  __Pyx_GIVEREF(__pyx_tuple__5);

  /* "wildboar/tree/_ctree.pyx":47
 *         self.feature_engineer = feature_engineer
 * 
 *     def __reduce__(self):             # <<<<<<<<<<<<<<
 *         return self.__class__, (self.feature_engineer, )
 * 
 */
  __pyx_tuple__8 = PyTuple_Pack(1, __pyx_n_s_self); if (unlikely(!__pyx_tuple__8)) __PYX_ERR(0, 47, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_tuple__8);
  __Pyx_GIVEREF(__pyx_tuple__8);
  __pyx_codeobj__9 = (PyObject*)__Pyx_PyCode_New(1, 0, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__8, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_src_wildboar_tree__ctree_pyx, __pyx_n_s_reduce, 47, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__9)) __PYX_ERR(0, 47, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":138
 *         self.alpha = alpha
 * 
 *     def __reduce__(self):             # <<<<<<<<<<<<<<
 *         return self.__class__, (self.feature_engineer, self.alpha)
 * 
 */
  __pyx_codeobj__10 = (PyObject*)__Pyx_PyCode_New(1, 0, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__8, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_src_wildboar_tree__ctree_pyx, __pyx_n_s_reduce, 138, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__10)) __PYX_ERR(0, 138, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_codeobj__11 = (PyObject*)__Pyx_PyCode_New(1, 0, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__8, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_reduce_cython, 1, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__11)) __PYX_ERR(1, 1, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 */
  __pyx_tuple__12 = PyTuple_Pack(2, __pyx_n_s_self, __pyx_n_s_pyx_state); if (unlikely(!__pyx_tuple__12)) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_tuple__12);
  __Pyx_GIVEREF(__pyx_tuple__12);
  __pyx_codeobj__13 = (PyObject*)__Pyx_PyCode_New(2, 0, 0, 2, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__12, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_setstate_cython, 3, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__13)) __PYX_ERR(1, 3, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_codeobj__14 = (PyObject*)__Pyx_PyCode_New(1, 0, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__8, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_reduce_cython, 1, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__14)) __PYX_ERR(1, 1, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_codeobj__15 = (PyObject*)__Pyx_PyCode_New(2, 0, 0, 2, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__12, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_setstate_cython, 3, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__15)) __PYX_ERR(1, 3, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_codeobj__16 = (PyObject*)__Pyx_PyCode_New(1, 0, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__8, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_reduce_cython, 1, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__16)) __PYX_ERR(1, 1, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_codeobj__17 = (PyObject*)__Pyx_PyCode_New(2, 0, 0, 2, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__12, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_setstate_cython, 3, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__17)) __PYX_ERR(1, 3, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_codeobj__18 = (PyObject*)__Pyx_PyCode_New(1, 0, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__8, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_reduce_cython, 1, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__18)) __PYX_ERR(1, 1, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_codeobj__19 = (PyObject*)__Pyx_PyCode_New(2, 0, 0, 2, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__12, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_setstate_cython, 3, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__19)) __PYX_ERR(1, 3, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_codeobj__20 = (PyObject*)__Pyx_PyCode_New(1, 0, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__8, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_reduce_cython, 1, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__20)) __PYX_ERR(1, 1, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_codeobj__21 = (PyObject*)__Pyx_PyCode_New(2, 0, 0, 2, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__12, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_setstate_cython, 3, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__21)) __PYX_ERR(1, 3, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_codeobj__22 = (PyObject*)__Pyx_PyCode_New(1, 0, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__8, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_reduce_cython, 1, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__22)) __PYX_ERR(1, 1, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_codeobj__23 = (PyObject*)__Pyx_PyCode_New(2, 0, 0, 2, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__12, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_setstate_cython, 3, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__23)) __PYX_ERR(1, 3, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":472
 *         right[0] -= (self.sum_right / self.weighted_n_right) ** 2
 * 
 * cpdef Tree _make_tree(             # <<<<<<<<<<<<<<
 *     TreeFeatureEngineer feature_engineer,
 *     Py_ssize_t n_labels,
 */
  __pyx_tuple__24 = PyTuple_Pack(11, __pyx_n_s_feature_engineer, __pyx_n_s_n_labels, __pyx_n_s_max_depth, __pyx_n_s_features, __pyx_n_s_threshold, __pyx_n_s_value, __pyx_n_s_left, __pyx_n_s_right, __pyx_n_s_impurity, __pyx_n_s_n_node_samples, __pyx_n_s_n_weighted_node_samples); if (unlikely(!__pyx_tuple__24)) __PYX_ERR(0, 472, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_tuple__24);
  __Pyx_GIVEREF(__pyx_tuple__24);
  __pyx_codeobj__25 = (PyObject*)__Pyx_PyCode_New(11, 0, 0, 11, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__24, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_src_wildboar_tree__ctree_pyx, __pyx_n_s_make_tree, 472, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__25)) __PYX_ERR(0, 472, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":581
 *             free(self._n_weighted_node_samples)
 * 
 *     def __reduce__(self):             # <<<<<<<<<<<<<<
 *         return _make_tree, (
 *             self.feature_engineer,
 */
  __pyx_codeobj__26 = (PyObject*)__Pyx_PyCode_New(1, 0, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__8, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_src_wildboar_tree__ctree_pyx, __pyx_n_s_reduce, 581, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__26)) __PYX_ERR(0, 581, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":671
 *         return arr
 * 
 *     def predict(self, object X):             # <<<<<<<<<<<<<<
 *         cdef np.ndarray apply = self.apply(X)
 *         cdef np.ndarray predict = np.take(self.value, apply, axis=0, mode="clip")
 */
  __pyx_tuple__27 = PyTuple_Pack(4, __pyx_n_s_self, __pyx_n_s_X, __pyx_n_s_apply, __pyx_n_s_predict); if (unlikely(!__pyx_tuple__27)) __PYX_ERR(0, 671, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_tuple__27);
  __Pyx_GIVEREF(__pyx_tuple__27);
  __pyx_codeobj__28 = (PyObject*)__Pyx_PyCode_New(2, 0, 0, 4, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__27, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_src_wildboar_tree__ctree_pyx, __pyx_n_s_predict, 671, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__28)) __PYX_ERR(0, 671, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":678
 *         return predict
 * 
 *     def apply(self, object X):             # <<<<<<<<<<<<<<
 *         if not isinstance(X, np.ndarray):
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 */
  __pyx_tuple__29 = PyTuple_Pack(10, __pyx_n_s_self, __pyx_n_s_X, __pyx_n_s_ts, __pyx_n_s_out, __pyx_n_s_out_data, __pyx_n_s_feature, __pyx_n_s_threshold, __pyx_n_s_feature_value, __pyx_n_s_node_index, __pyx_n_s_i); if (unlikely(!__pyx_tuple__29)) __PYX_ERR(0, 678, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_tuple__29);
  __Pyx_GIVEREF(__pyx_tuple__29);
  __pyx_codeobj__30 = (PyObject*)__Pyx_PyCode_New(2, 0, 0, 10, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__29, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_src_wildboar_tree__ctree_pyx, __pyx_n_s_apply, 678, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__30)) __PYX_ERR(0, 678, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":706
 *         return out
 * 
 *     def decision_path(self, object X):             # <<<<<<<<<<<<<<
 *         if not isinstance(X, np.ndarray):
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 */
  __pyx_tuple__31 = PyTuple_Pack(12, __pyx_n_s_self, __pyx_n_s_X, __pyx_n_s_ts, __pyx_n_s_out, __pyx_n_s_out_data, __pyx_n_s_i_stride, __pyx_n_s_n_stride, __pyx_n_s_node_index, __pyx_n_s_i, __pyx_n_s_feature, __pyx_n_s_threshold, __pyx_n_s_feature_value); if (unlikely(!__pyx_tuple__31)) __PYX_ERR(0, 706, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_tuple__31);
  __Pyx_GIVEREF(__pyx_tuple__31);
  __pyx_codeobj__32 = (PyObject*)__Pyx_PyCode_New(2, 0, 0, 12, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__31, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_src_wildboar_tree__ctree_pyx, __pyx_n_s_decision_path, 706, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__32)) __PYX_ERR(0, 706, __pyx_L1_error)

  /* "wildboar/tree/_ctree.pyx":951
 *         return self.tree
 * 
 *     cpdef Py_ssize_t build_tree(self):             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t root_node_id
 *         cdef Py_ssize_t max_depth = 0
 */
  __pyx_codeobj__33 = (PyObject*)__Pyx_PyCode_New(1, 0, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__8, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_src_wildboar_tree__ctree_pyx, __pyx_n_s_build_tree, 951, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__33)) __PYX_ERR(0, 951, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_codeobj__34 = (PyObject*)__Pyx_PyCode_New(1, 0, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__8, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_reduce_cython, 1, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__34)) __PYX_ERR(1, 1, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_codeobj__35 = (PyObject*)__Pyx_PyCode_New(2, 0, 0, 2, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__12, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_setstate_cython, 3, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__35)) __PYX_ERR(1, 3, __pyx_L1_error)

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_codeobj__36 = (PyObject*)__Pyx_PyCode_New(1, 0, 0, 1, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__8, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_reduce_cython, 1, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__36)) __PYX_ERR(1, 1, __pyx_L1_error)

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_codeobj__37 = (PyObject*)__Pyx_PyCode_New(2, 0, 0, 2, 0, CO_OPTIMIZED|CO_NEWLOCALS, __pyx_empty_bytes, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_tuple__12, __pyx_empty_tuple, __pyx_empty_tuple, __pyx_kp_s_stringsource, __pyx_n_s_setstate_cython, 3, __pyx_empty_bytes); if (unlikely(!__pyx_codeobj__37)) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_RefNannyFinishContext();
  return 0;
  __pyx_L1_error:;
  __Pyx_RefNannyFinishContext();
  return -1;
}
/* #### Code section: init_constants ### */

static CYTHON_SMALL_CODE int __Pyx_InitConstants(void) {
  if (__Pyx_CreateStringTabAndInitStrings() < 0) __PYX_ERR(0, 1, __pyx_L1_error);
  __pyx_float_0_0 = PyFloat_FromDouble(0.0); if (unlikely(!__pyx_float_0_0)) __PYX_ERR(0, 1, __pyx_L1_error)
  __pyx_int_0 = PyInt_FromLong(0); if (unlikely(!__pyx_int_0)) __PYX_ERR(0, 1, __pyx_L1_error)
  __pyx_int_1 = PyInt_FromLong(1); if (unlikely(!__pyx_int_1)) __PYX_ERR(0, 1, __pyx_L1_error)
  __pyx_int_neg_1 = PyInt_FromLong(-1); if (unlikely(!__pyx_int_neg_1)) __PYX_ERR(0, 1, __pyx_L1_error)
  return 0;
  __pyx_L1_error:;
  return -1;
}
/* #### Code section: init_globals ### */

static CYTHON_SMALL_CODE int __Pyx_InitGlobals(void) {
  /* NumpyImportArray.init */
  /*
 * Cython has automatically inserted a call to _import_array since
 * you didn't include one when you cimported numpy. To disable this
 * add the line
 *   <void>numpy._import_array
 */
#ifdef NPY_FEATURE_VERSION
#ifndef NO_IMPORT_ARRAY
if (unlikely(_import_array() == -1)) {
    PyErr_SetString(PyExc_ImportError, "numpy.core.multiarray failed to import "
    "(auto-generated because you didn't call 'numpy.import_array()' after cimporting numpy; "
    "use '<void>numpy._import_array' to disable if you are certain you don't need it).");
}
#endif
#endif

if (unlikely(PyErr_Occurred())) __PYX_ERR(0, 1, __pyx_L1_error)

  return 0;
  __pyx_L1_error:;
  return -1;
}
/* #### Code section: init_module ### */

static CYTHON_SMALL_CODE int __Pyx_modinit_global_init_code(void); /*proto*/
static CYTHON_SMALL_CODE int __Pyx_modinit_variable_export_code(void); /*proto*/
static CYTHON_SMALL_CODE int __Pyx_modinit_function_export_code(void); /*proto*/
static CYTHON_SMALL_CODE int __Pyx_modinit_type_init_code(void); /*proto*/
static CYTHON_SMALL_CODE int __Pyx_modinit_type_import_code(void); /*proto*/
static CYTHON_SMALL_CODE int __Pyx_modinit_variable_import_code(void); /*proto*/
static CYTHON_SMALL_CODE int __Pyx_modinit_function_import_code(void); /*proto*/

static int __Pyx_modinit_global_init_code(void) {
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__Pyx_modinit_global_init_code", 0);
  /*--- Global init code ---*/
  __Pyx_RefNannyFinishContext();
  return 0;
}

static int __Pyx_modinit_variable_export_code(void) {
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__Pyx_modinit_variable_export_code", 0);
  /*--- Variable export code ---*/
  __Pyx_RefNannyFinishContext();
  return 0;
}

static int __Pyx_modinit_function_export_code(void) {
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__Pyx_modinit_function_export_code", 0);
  /*--- Function export code ---*/
  __Pyx_RefNannyFinishContext();
  return 0;
}

static int __Pyx_modinit_type_init_code(void) {
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__Pyx_modinit_type_init_code", 0);
  /*--- Type init code ---*/
  __pyx_vtabptr_8wildboar_4tree_6_ctree_TreeFeatureEngineer = &__pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer.reset = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *))__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_reset;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer.get_n_features = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t))__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_get_n_features;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer.next_feature = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, Py_ssize_t, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t *, Py_ssize_t, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, size_t *))__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_next_feature;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer.init_persistent_feature = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *))__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_init_persistent_feature;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer.free_transient_feature = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *))__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_free_transient_feature;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer.free_persistent_feature = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *))__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_free_persistent_feature;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer.transient_feature_value = (double (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t))__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_transient_feature_value;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer.persistent_feature_value = (double (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t))__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_persistent_feature_value;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer.transient_feature_values = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t *, Py_ssize_t, double *))__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_transient_feature_values;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer.persistent_feature_values = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t *, Py_ssize_t, double *))__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_persistent_feature_values;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer.persistent_feature_to_object = (PyObject *(*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *))__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_persistent_feature_to_object;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeFeatureEngineer.persistent_feature_from_object = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, PyObject *, struct __pyx_t_8wildboar_9transform_8_feature_Feature *))__pyx_f_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_persistent_feature_from_object;
  #if CYTHON_USE_TYPE_SPECS
  __pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer = (PyTypeObject *) __Pyx_PyType_FromModuleAndSpec(__pyx_m, &__pyx_type_8wildboar_4tree_6_ctree_TreeFeatureEngineer_spec, NULL); if (unlikely(!__pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer)) __PYX_ERR(0, 41, __pyx_L1_error)
  if (__Pyx_fix_up_extension_type_from_spec(&__pyx_type_8wildboar_4tree_6_ctree_TreeFeatureEngineer_spec, __pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer) < 0) __PYX_ERR(0, 41, __pyx_L1_error)
  #else
  __pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer = &__pyx_type_8wildboar_4tree_6_ctree_TreeFeatureEngineer;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  #endif
  #if !CYTHON_USE_TYPE_SPECS
  if (__Pyx_PyType_Ready(__pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer) < 0) __PYX_ERR(0, 41, __pyx_L1_error)
  #endif
  #if PY_MAJOR_VERSION < 3
  __pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer->tp_print = 0;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer->tp_dictoffset && __pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer->tp_getattro == PyObject_GenericGetAttr)) {
    __pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer->tp_getattro = __Pyx_PyObject_GenericGetAttr;
  }
  #endif
  if (__Pyx_SetVtable(__pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer, __pyx_vtabptr_8wildboar_4tree_6_ctree_TreeFeatureEngineer) < 0) __PYX_ERR(0, 41, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_MergeVtables(__pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer) < 0) __PYX_ERR(0, 41, __pyx_L1_error)
  #endif
  if (PyObject_SetAttr(__pyx_m, __pyx_n_s_TreeFeatureEngineer, (PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer) < 0) __PYX_ERR(0, 41, __pyx_L1_error)
  __pyx_vtabptr_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer = &__pyx_vtable_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer;
  __pyx_vtable_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer.__pyx_base = *__pyx_vtabptr_8wildboar_4tree_6_ctree_TreeFeatureEngineer;
  __pyx_vtable_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer.__pyx_base.get_n_features = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeFeatureEngineer *, struct __pyx_obj_8wildboar_5utils_4data_Dataset *, Py_ssize_t))__pyx_f_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_get_n_features;
  #if CYTHON_USE_TYPE_SPECS
  __pyx_t_1 = PyTuple_Pack(1, (PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 130, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer = (PyTypeObject *) __Pyx_PyType_FromModuleAndSpec(__pyx_m, &__pyx_type_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer_spec, __pyx_t_1);
  __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (unlikely(!__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer)) __PYX_ERR(0, 130, __pyx_L1_error)
  if (__Pyx_fix_up_extension_type_from_spec(&__pyx_type_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer_spec, __pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer) < 0) __PYX_ERR(0, 130, __pyx_L1_error)
  #else
  __pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer = &__pyx_type_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  __pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer->tp_base = __pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer;
  #endif
  #if !CYTHON_USE_TYPE_SPECS
  if (__Pyx_PyType_Ready(__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer) < 0) __PYX_ERR(0, 130, __pyx_L1_error)
  #endif
  #if PY_MAJOR_VERSION < 3
  __pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer->tp_print = 0;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer->tp_dictoffset && __pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer->tp_getattro == PyObject_GenericGetAttr)) {
    __pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer->tp_getattro = __Pyx_PyObject_GenericGetAttr;
  }
  #endif
  if (__Pyx_SetVtable(__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer, __pyx_vtabptr_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer) < 0) __PYX_ERR(0, 130, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_MergeVtables(__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer) < 0) __PYX_ERR(0, 130, __pyx_L1_error)
  #endif
  if (PyObject_SetAttr(__pyx_m, __pyx_n_s_DynamicTreeFeatureEngineer, (PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer) < 0) __PYX_ERR(0, 130, __pyx_L1_error)
  __pyx_vtabptr_8wildboar_4tree_6_ctree_Criterion = &__pyx_vtable_8wildboar_4tree_6_ctree_Criterion;
  __pyx_vtable_8wildboar_4tree_6_ctree_Criterion.init = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, Py_ssize_t, Py_ssize_t, Py_ssize_t *, double *))__pyx_f_8wildboar_4tree_6_ctree_9Criterion_init;
  __pyx_vtable_8wildboar_4tree_6_ctree_Criterion.reset = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *))__pyx_f_8wildboar_4tree_6_ctree_9Criterion_reset;
  __pyx_vtable_8wildboar_4tree_6_ctree_Criterion.update = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, Py_ssize_t, Py_ssize_t))__pyx_f_8wildboar_4tree_6_ctree_9Criterion_update;
  __pyx_vtable_8wildboar_4tree_6_ctree_Criterion.proxy_impurity = (double (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *))__pyx_f_8wildboar_4tree_6_ctree_9Criterion_proxy_impurity;
  __pyx_vtable_8wildboar_4tree_6_ctree_Criterion.impurity = (double (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *))__pyx_f_8wildboar_4tree_6_ctree_9Criterion_impurity;
  __pyx_vtable_8wildboar_4tree_6_ctree_Criterion.child_impurity = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, double *, double *))__pyx_f_8wildboar_4tree_6_ctree_9Criterion_child_impurity;
  __pyx_vtable_8wildboar_4tree_6_ctree_Criterion.impurity_improvement = (double (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, double, double, double, double))__pyx_f_8wildboar_4tree_6_ctree_9Criterion_impurity_improvement;
  __pyx_vtable_8wildboar_4tree_6_ctree_Criterion.leaf_value = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *, Py_ssize_t))__pyx_f_8wildboar_4tree_6_ctree_9Criterion_leaf_value;
  #if CYTHON_USE_TYPE_SPECS
  __pyx_ptype_8wildboar_4tree_6_ctree_Criterion = (PyTypeObject *) __Pyx_PyType_FromModuleAndSpec(__pyx_m, &__pyx_type_8wildboar_4tree_6_ctree_Criterion_spec, NULL); if (unlikely(!__pyx_ptype_8wildboar_4tree_6_ctree_Criterion)) __PYX_ERR(0, 150, __pyx_L1_error)
  if (__Pyx_fix_up_extension_type_from_spec(&__pyx_type_8wildboar_4tree_6_ctree_Criterion_spec, __pyx_ptype_8wildboar_4tree_6_ctree_Criterion) < 0) __PYX_ERR(0, 150, __pyx_L1_error)
  #else
  __pyx_ptype_8wildboar_4tree_6_ctree_Criterion = &__pyx_type_8wildboar_4tree_6_ctree_Criterion;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  #endif
  #if !CYTHON_USE_TYPE_SPECS
  if (__Pyx_PyType_Ready(__pyx_ptype_8wildboar_4tree_6_ctree_Criterion) < 0) __PYX_ERR(0, 150, __pyx_L1_error)
  #endif
  #if PY_MAJOR_VERSION < 3
  __pyx_ptype_8wildboar_4tree_6_ctree_Criterion->tp_print = 0;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_ptype_8wildboar_4tree_6_ctree_Criterion->tp_dictoffset && __pyx_ptype_8wildboar_4tree_6_ctree_Criterion->tp_getattro == PyObject_GenericGetAttr)) {
    __pyx_ptype_8wildboar_4tree_6_ctree_Criterion->tp_getattro = __Pyx_PyObject_GenericGetAttr;
  }
  #endif
  if (__Pyx_SetVtable(__pyx_ptype_8wildboar_4tree_6_ctree_Criterion, __pyx_vtabptr_8wildboar_4tree_6_ctree_Criterion) < 0) __PYX_ERR(0, 150, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_MergeVtables(__pyx_ptype_8wildboar_4tree_6_ctree_Criterion) < 0) __PYX_ERR(0, 150, __pyx_L1_error)
  #endif
  if (PyObject_SetAttr(__pyx_m, __pyx_n_s_Criterion, (PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_Criterion) < 0) __PYX_ERR(0, 150, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_setup_reduce((PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_Criterion) < 0) __PYX_ERR(0, 150, __pyx_L1_error)
  #endif
  __pyx_vtabptr_8wildboar_4tree_6_ctree_ClassificationCriterion = &__pyx_vtable_8wildboar_4tree_6_ctree_ClassificationCriterion;
  __pyx_vtable_8wildboar_4tree_6_ctree_ClassificationCriterion.__pyx_base = *__pyx_vtabptr_8wildboar_4tree_6_ctree_Criterion;
  __pyx_vtable_8wildboar_4tree_6_ctree_ClassificationCriterion.__pyx_base.init = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, Py_ssize_t, Py_ssize_t, Py_ssize_t *, double *))__pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_init;
  __pyx_vtable_8wildboar_4tree_6_ctree_ClassificationCriterion.__pyx_base.reset = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *))__pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_reset;
  __pyx_vtable_8wildboar_4tree_6_ctree_ClassificationCriterion.__pyx_base.update = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, Py_ssize_t, Py_ssize_t))__pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_update;
  __pyx_vtable_8wildboar_4tree_6_ctree_ClassificationCriterion.__pyx_base.impurity = (double (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *))__pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_impurity;
  __pyx_vtable_8wildboar_4tree_6_ctree_ClassificationCriterion.__pyx_base.child_impurity = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, double *, double *))__pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_child_impurity;
  __pyx_vtable_8wildboar_4tree_6_ctree_ClassificationCriterion.__pyx_base.leaf_value = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *, Py_ssize_t))__pyx_f_8wildboar_4tree_6_ctree_23ClassificationCriterion_leaf_value;
  #if CYTHON_USE_TYPE_SPECS
  __pyx_t_1 = PyTuple_Pack(1, (PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_Criterion); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 204, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion = (PyTypeObject *) __Pyx_PyType_FromModuleAndSpec(__pyx_m, &__pyx_type_8wildboar_4tree_6_ctree_ClassificationCriterion_spec, __pyx_t_1);
  __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (unlikely(!__pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion)) __PYX_ERR(0, 204, __pyx_L1_error)
  if (__Pyx_fix_up_extension_type_from_spec(&__pyx_type_8wildboar_4tree_6_ctree_ClassificationCriterion_spec, __pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion) < 0) __PYX_ERR(0, 204, __pyx_L1_error)
  #else
  __pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion = &__pyx_type_8wildboar_4tree_6_ctree_ClassificationCriterion;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  __pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion->tp_base = __pyx_ptype_8wildboar_4tree_6_ctree_Criterion;
  #endif
  #if !CYTHON_USE_TYPE_SPECS
  if (__Pyx_PyType_Ready(__pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion) < 0) __PYX_ERR(0, 204, __pyx_L1_error)
  #endif
  #if PY_MAJOR_VERSION < 3
  __pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion->tp_print = 0;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion->tp_dictoffset && __pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion->tp_getattro == PyObject_GenericGetAttr)) {
    __pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion->tp_getattro = __Pyx_PyObject_GenericGetAttr;
  }
  #endif
  if (__Pyx_SetVtable(__pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion, __pyx_vtabptr_8wildboar_4tree_6_ctree_ClassificationCriterion) < 0) __PYX_ERR(0, 204, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_MergeVtables(__pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion) < 0) __PYX_ERR(0, 204, __pyx_L1_error)
  #endif
  if (PyObject_SetAttr(__pyx_m, __pyx_n_s_ClassificationCriterion, (PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion) < 0) __PYX_ERR(0, 204, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_setup_reduce((PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion) < 0) __PYX_ERR(0, 204, __pyx_L1_error)
  #endif
  __pyx_vtabptr_8wildboar_4tree_6_ctree_GiniCriterion = &__pyx_vtable_8wildboar_4tree_6_ctree_GiniCriterion;
  __pyx_vtable_8wildboar_4tree_6_ctree_GiniCriterion.__pyx_base = *__pyx_vtabptr_8wildboar_4tree_6_ctree_ClassificationCriterion;
  __pyx_vtable_8wildboar_4tree_6_ctree_GiniCriterion.__pyx_base.__pyx_base.impurity = (double (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *))__pyx_f_8wildboar_4tree_6_ctree_13GiniCriterion_impurity;
  __pyx_vtable_8wildboar_4tree_6_ctree_GiniCriterion.__pyx_base.__pyx_base.child_impurity = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, double *, double *))__pyx_f_8wildboar_4tree_6_ctree_13GiniCriterion_child_impurity;
  #if CYTHON_USE_TYPE_SPECS
  __pyx_t_1 = PyTuple_Pack(1, (PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 294, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion = (PyTypeObject *) __Pyx_PyType_FromModuleAndSpec(__pyx_m, &__pyx_type_8wildboar_4tree_6_ctree_GiniCriterion_spec, __pyx_t_1);
  __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (unlikely(!__pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion)) __PYX_ERR(0, 294, __pyx_L1_error)
  if (__Pyx_fix_up_extension_type_from_spec(&__pyx_type_8wildboar_4tree_6_ctree_GiniCriterion_spec, __pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion) < 0) __PYX_ERR(0, 294, __pyx_L1_error)
  #else
  __pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion = &__pyx_type_8wildboar_4tree_6_ctree_GiniCriterion;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  __pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion->tp_base = __pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion;
  #endif
  #if !CYTHON_USE_TYPE_SPECS
  if (__Pyx_PyType_Ready(__pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion) < 0) __PYX_ERR(0, 294, __pyx_L1_error)
  #endif
  #if PY_MAJOR_VERSION < 3
  __pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion->tp_print = 0;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion->tp_dictoffset && __pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion->tp_getattro == PyObject_GenericGetAttr)) {
    __pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion->tp_getattro = __Pyx_PyObject_GenericGetAttr;
  }
  #endif
  if (__Pyx_SetVtable(__pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion, __pyx_vtabptr_8wildboar_4tree_6_ctree_GiniCriterion) < 0) __PYX_ERR(0, 294, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_MergeVtables(__pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion) < 0) __PYX_ERR(0, 294, __pyx_L1_error)
  #endif
  if (PyObject_SetAttr(__pyx_m, __pyx_n_s_GiniCriterion, (PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion) < 0) __PYX_ERR(0, 294, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_setup_reduce((PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_GiniCriterion) < 0) __PYX_ERR(0, 294, __pyx_L1_error)
  #endif
  __pyx_vtabptr_8wildboar_4tree_6_ctree_EntropyCriterion = &__pyx_vtable_8wildboar_4tree_6_ctree_EntropyCriterion;
  __pyx_vtable_8wildboar_4tree_6_ctree_EntropyCriterion.__pyx_base = *__pyx_vtabptr_8wildboar_4tree_6_ctree_ClassificationCriterion;
  __pyx_vtable_8wildboar_4tree_6_ctree_EntropyCriterion.__pyx_base.__pyx_base.impurity = (double (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *))__pyx_f_8wildboar_4tree_6_ctree_16EntropyCriterion_impurity;
  __pyx_vtable_8wildboar_4tree_6_ctree_EntropyCriterion.__pyx_base.__pyx_base.child_impurity = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, double *, double *))__pyx_f_8wildboar_4tree_6_ctree_16EntropyCriterion_child_impurity;
  #if CYTHON_USE_TYPE_SPECS
  __pyx_t_1 = PyTuple_Pack(1, (PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 322, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion = (PyTypeObject *) __Pyx_PyType_FromModuleAndSpec(__pyx_m, &__pyx_type_8wildboar_4tree_6_ctree_EntropyCriterion_spec, __pyx_t_1);
  __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (unlikely(!__pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion)) __PYX_ERR(0, 322, __pyx_L1_error)
  if (__Pyx_fix_up_extension_type_from_spec(&__pyx_type_8wildboar_4tree_6_ctree_EntropyCriterion_spec, __pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion) < 0) __PYX_ERR(0, 322, __pyx_L1_error)
  #else
  __pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion = &__pyx_type_8wildboar_4tree_6_ctree_EntropyCriterion;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  __pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion->tp_base = __pyx_ptype_8wildboar_4tree_6_ctree_ClassificationCriterion;
  #endif
  #if !CYTHON_USE_TYPE_SPECS
  if (__Pyx_PyType_Ready(__pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion) < 0) __PYX_ERR(0, 322, __pyx_L1_error)
  #endif
  #if PY_MAJOR_VERSION < 3
  __pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion->tp_print = 0;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion->tp_dictoffset && __pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion->tp_getattro == PyObject_GenericGetAttr)) {
    __pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion->tp_getattro = __Pyx_PyObject_GenericGetAttr;
  }
  #endif
  if (__Pyx_SetVtable(__pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion, __pyx_vtabptr_8wildboar_4tree_6_ctree_EntropyCriterion) < 0) __PYX_ERR(0, 322, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_MergeVtables(__pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion) < 0) __PYX_ERR(0, 322, __pyx_L1_error)
  #endif
  if (PyObject_SetAttr(__pyx_m, __pyx_n_s_EntropyCriterion, (PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion) < 0) __PYX_ERR(0, 322, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_setup_reduce((PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_EntropyCriterion) < 0) __PYX_ERR(0, 322, __pyx_L1_error)
  #endif
  __pyx_vtabptr_8wildboar_4tree_6_ctree_RegressionCriterion = &__pyx_vtable_8wildboar_4tree_6_ctree_RegressionCriterion;
  __pyx_vtable_8wildboar_4tree_6_ctree_RegressionCriterion.__pyx_base = *__pyx_vtabptr_8wildboar_4tree_6_ctree_Criterion;
  __pyx_vtable_8wildboar_4tree_6_ctree_RegressionCriterion.__pyx_base.init = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, Py_ssize_t, Py_ssize_t, Py_ssize_t *, double *))__pyx_f_8wildboar_4tree_6_ctree_19RegressionCriterion_init;
  __pyx_vtable_8wildboar_4tree_6_ctree_RegressionCriterion.__pyx_base.reset = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *))__pyx_f_8wildboar_4tree_6_ctree_19RegressionCriterion_reset;
  __pyx_vtable_8wildboar_4tree_6_ctree_RegressionCriterion.__pyx_base.update = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, Py_ssize_t, Py_ssize_t))__pyx_f_8wildboar_4tree_6_ctree_19RegressionCriterion_update;
  __pyx_vtable_8wildboar_4tree_6_ctree_RegressionCriterion.__pyx_base.leaf_value = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *, Py_ssize_t))__pyx_f_8wildboar_4tree_6_ctree_19RegressionCriterion_leaf_value;
  #if CYTHON_USE_TYPE_SPECS
  __pyx_t_1 = PyTuple_Pack(1, (PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_Criterion); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 353, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion = (PyTypeObject *) __Pyx_PyType_FromModuleAndSpec(__pyx_m, &__pyx_type_8wildboar_4tree_6_ctree_RegressionCriterion_spec, __pyx_t_1);
  __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (unlikely(!__pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion)) __PYX_ERR(0, 353, __pyx_L1_error)
  if (__Pyx_fix_up_extension_type_from_spec(&__pyx_type_8wildboar_4tree_6_ctree_RegressionCriterion_spec, __pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion) < 0) __PYX_ERR(0, 353, __pyx_L1_error)
  #else
  __pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion = &__pyx_type_8wildboar_4tree_6_ctree_RegressionCriterion;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  __pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion->tp_base = __pyx_ptype_8wildboar_4tree_6_ctree_Criterion;
  #endif
  #if !CYTHON_USE_TYPE_SPECS
  if (__Pyx_PyType_Ready(__pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion) < 0) __PYX_ERR(0, 353, __pyx_L1_error)
  #endif
  #if PY_MAJOR_VERSION < 3
  __pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion->tp_print = 0;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion->tp_dictoffset && __pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion->tp_getattro == PyObject_GenericGetAttr)) {
    __pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion->tp_getattro = __Pyx_PyObject_GenericGetAttr;
  }
  #endif
  if (__Pyx_SetVtable(__pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion, __pyx_vtabptr_8wildboar_4tree_6_ctree_RegressionCriterion) < 0) __PYX_ERR(0, 353, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_MergeVtables(__pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion) < 0) __PYX_ERR(0, 353, __pyx_L1_error)
  #endif
  if (PyObject_SetAttr(__pyx_m, __pyx_n_s_RegressionCriterion, (PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion) < 0) __PYX_ERR(0, 353, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_setup_reduce((PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion) < 0) __PYX_ERR(0, 353, __pyx_L1_error)
  #endif
  __pyx_vtabptr_8wildboar_4tree_6_ctree_MSECriterion = &__pyx_vtable_8wildboar_4tree_6_ctree_MSECriterion;
  __pyx_vtable_8wildboar_4tree_6_ctree_MSECriterion.__pyx_base = *__pyx_vtabptr_8wildboar_4tree_6_ctree_RegressionCriterion;
  __pyx_vtable_8wildboar_4tree_6_ctree_MSECriterion.__pyx_base.__pyx_base.proxy_impurity = (double (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *))__pyx_f_8wildboar_4tree_6_ctree_12MSECriterion_proxy_impurity;
  __pyx_vtable_8wildboar_4tree_6_ctree_MSECriterion.__pyx_base.__pyx_base.impurity = (double (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *))__pyx_f_8wildboar_4tree_6_ctree_12MSECriterion_impurity;
  __pyx_vtable_8wildboar_4tree_6_ctree_MSECriterion.__pyx_base.__pyx_base.child_impurity = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Criterion *, double *, double *))__pyx_f_8wildboar_4tree_6_ctree_12MSECriterion_child_impurity;
  #if CYTHON_USE_TYPE_SPECS
  __pyx_t_1 = PyTuple_Pack(1, (PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 436, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion = (PyTypeObject *) __Pyx_PyType_FromModuleAndSpec(__pyx_m, &__pyx_type_8wildboar_4tree_6_ctree_MSECriterion_spec, __pyx_t_1);
  __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (unlikely(!__pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion)) __PYX_ERR(0, 436, __pyx_L1_error)
  if (__Pyx_fix_up_extension_type_from_spec(&__pyx_type_8wildboar_4tree_6_ctree_MSECriterion_spec, __pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion) < 0) __PYX_ERR(0, 436, __pyx_L1_error)
  #else
  __pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion = &__pyx_type_8wildboar_4tree_6_ctree_MSECriterion;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  __pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion->tp_base = __pyx_ptype_8wildboar_4tree_6_ctree_RegressionCriterion;
  #endif
  #if !CYTHON_USE_TYPE_SPECS
  if (__Pyx_PyType_Ready(__pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion) < 0) __PYX_ERR(0, 436, __pyx_L1_error)
  #endif
  #if PY_MAJOR_VERSION < 3
  __pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion->tp_print = 0;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion->tp_dictoffset && __pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion->tp_getattro == PyObject_GenericGetAttr)) {
    __pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion->tp_getattro = __Pyx_PyObject_GenericGetAttr;
  }
  #endif
  if (__Pyx_SetVtable(__pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion, __pyx_vtabptr_8wildboar_4tree_6_ctree_MSECriterion) < 0) __PYX_ERR(0, 436, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_MergeVtables(__pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion) < 0) __PYX_ERR(0, 436, __pyx_L1_error)
  #endif
  if (PyObject_SetAttr(__pyx_m, __pyx_n_s_MSECriterion, (PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion) < 0) __PYX_ERR(0, 436, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_setup_reduce((PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_MSECriterion) < 0) __PYX_ERR(0, 436, __pyx_L1_error)
  #endif
  __pyx_vtabptr_8wildboar_4tree_6_ctree_Tree = &__pyx_vtable_8wildboar_4tree_6_ctree_Tree;
  __pyx_vtable_8wildboar_4tree_6_ctree_Tree.add_leaf_node = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *, Py_ssize_t, int, Py_ssize_t, double))__pyx_f_8wildboar_4tree_6_ctree_4Tree_add_leaf_node;
  __pyx_vtable_8wildboar_4tree_6_ctree_Tree.set_leaf_value = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *, Py_ssize_t, Py_ssize_t, double))__pyx_f_8wildboar_4tree_6_ctree_4Tree_set_leaf_value;
  __pyx_vtable_8wildboar_4tree_6_ctree_Tree.add_branch_node = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *, Py_ssize_t, int, Py_ssize_t, double, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, double, double))__pyx_f_8wildboar_4tree_6_ctree_4Tree_add_branch_node;
  __pyx_vtable_8wildboar_4tree_6_ctree_Tree._increase_capacity = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_Tree *))__pyx_f_8wildboar_4tree_6_ctree_4Tree__increase_capacity;
  #if CYTHON_USE_TYPE_SPECS
  __pyx_ptype_8wildboar_4tree_6_ctree_Tree = (PyTypeObject *) __Pyx_PyType_FromModuleAndSpec(__pyx_m, &__pyx_type_8wildboar_4tree_6_ctree_Tree_spec, NULL); if (unlikely(!__pyx_ptype_8wildboar_4tree_6_ctree_Tree)) __PYX_ERR(0, 514, __pyx_L1_error)
  if (__Pyx_fix_up_extension_type_from_spec(&__pyx_type_8wildboar_4tree_6_ctree_Tree_spec, __pyx_ptype_8wildboar_4tree_6_ctree_Tree) < 0) __PYX_ERR(0, 514, __pyx_L1_error)
  #else
  __pyx_ptype_8wildboar_4tree_6_ctree_Tree = &__pyx_type_8wildboar_4tree_6_ctree_Tree;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  #endif
  #if !CYTHON_USE_TYPE_SPECS
  if (__Pyx_PyType_Ready(__pyx_ptype_8wildboar_4tree_6_ctree_Tree) < 0) __PYX_ERR(0, 514, __pyx_L1_error)
  #endif
  #if PY_MAJOR_VERSION < 3
  __pyx_ptype_8wildboar_4tree_6_ctree_Tree->tp_print = 0;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_ptype_8wildboar_4tree_6_ctree_Tree->tp_dictoffset && __pyx_ptype_8wildboar_4tree_6_ctree_Tree->tp_getattro == PyObject_GenericGetAttr)) {
    __pyx_ptype_8wildboar_4tree_6_ctree_Tree->tp_getattro = __Pyx_PyObject_GenericGetAttr;
  }
  #endif
  if (__Pyx_SetVtable(__pyx_ptype_8wildboar_4tree_6_ctree_Tree, __pyx_vtabptr_8wildboar_4tree_6_ctree_Tree) < 0) __PYX_ERR(0, 514, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_MergeVtables(__pyx_ptype_8wildboar_4tree_6_ctree_Tree) < 0) __PYX_ERR(0, 514, __pyx_L1_error)
  #endif
  if (PyObject_SetAttr(__pyx_m, __pyx_n_s_Tree, (PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_Tree) < 0) __PYX_ERR(0, 514, __pyx_L1_error)
  __pyx_vtabptr_8wildboar_4tree_6_ctree_TreeBuilder = &__pyx_vtable_8wildboar_4tree_6_ctree_TreeBuilder;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeBuilder.build_tree = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, int __pyx_skip_dispatch))__pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder_build_tree;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeBuilder.new_leaf_node = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, Py_ssize_t, Py_ssize_t, Py_ssize_t, int))__pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder_new_leaf_node;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeBuilder.new_branch_node = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, Py_ssize_t, Py_ssize_t, struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint, struct __pyx_t_8wildboar_9transform_8_feature_Feature *, Py_ssize_t, int))__pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder_new_branch_node;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeBuilder._build_tree = (Py_ssize_t (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, Py_ssize_t, Py_ssize_t, Py_ssize_t, Py_ssize_t, int, double, Py_ssize_t *))__pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder__build_tree;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeBuilder._split = (struct __pyx_t_8wildboar_4tree_6_ctree_SplitPoint (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, Py_ssize_t, Py_ssize_t, Py_ssize_t, double))__pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder__split;
  __pyx_vtable_8wildboar_4tree_6_ctree_TreeBuilder._partition_feature_buffer = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, Py_ssize_t, Py_ssize_t, Py_ssize_t *, double *, double *))__pyx_f_8wildboar_4tree_6_ctree_11TreeBuilder__partition_feature_buffer;
  #if CYTHON_USE_TYPE_SPECS
  __pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder = (PyTypeObject *) __Pyx_PyType_FromModuleAndSpec(__pyx_m, &__pyx_type_8wildboar_4tree_6_ctree_TreeBuilder_spec, NULL); if (unlikely(!__pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder)) __PYX_ERR(0, 841, __pyx_L1_error)
  if (__Pyx_fix_up_extension_type_from_spec(&__pyx_type_8wildboar_4tree_6_ctree_TreeBuilder_spec, __pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder) < 0) __PYX_ERR(0, 841, __pyx_L1_error)
  #else
  __pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder = &__pyx_type_8wildboar_4tree_6_ctree_TreeBuilder;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  #endif
  #if !CYTHON_USE_TYPE_SPECS
  if (__Pyx_PyType_Ready(__pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder) < 0) __PYX_ERR(0, 841, __pyx_L1_error)
  #endif
  #if PY_MAJOR_VERSION < 3
  __pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder->tp_print = 0;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder->tp_dictoffset && __pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder->tp_getattro == PyObject_GenericGetAttr)) {
    __pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder->tp_getattro = __Pyx_PyObject_GenericGetAttr;
  }
  #endif
  if (__Pyx_SetVtable(__pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder, __pyx_vtabptr_8wildboar_4tree_6_ctree_TreeBuilder) < 0) __PYX_ERR(0, 841, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_MergeVtables(__pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder) < 0) __PYX_ERR(0, 841, __pyx_L1_error)
  #endif
  if (PyObject_SetAttr(__pyx_m, __pyx_n_s_TreeBuilder, (PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder) < 0) __PYX_ERR(0, 841, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_setup_reduce((PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder) < 0) __PYX_ERR(0, 841, __pyx_L1_error)
  #endif
  __pyx_vtabptr_8wildboar_4tree_6_ctree_ExtraTreeBuilder = &__pyx_vtable_8wildboar_4tree_6_ctree_ExtraTreeBuilder;
  __pyx_vtable_8wildboar_4tree_6_ctree_ExtraTreeBuilder.__pyx_base = *__pyx_vtabptr_8wildboar_4tree_6_ctree_TreeBuilder;
  __pyx_vtable_8wildboar_4tree_6_ctree_ExtraTreeBuilder.__pyx_base._partition_feature_buffer = (void (*)(struct __pyx_obj_8wildboar_4tree_6_ctree_TreeBuilder *, Py_ssize_t, Py_ssize_t, Py_ssize_t *, double *, double *))__pyx_f_8wildboar_4tree_6_ctree_16ExtraTreeBuilder__partition_feature_buffer;
  #if CYTHON_USE_TYPE_SPECS
  __pyx_t_1 = PyTuple_Pack(1, (PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1231, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder = (PyTypeObject *) __Pyx_PyType_FromModuleAndSpec(__pyx_m, &__pyx_type_8wildboar_4tree_6_ctree_ExtraTreeBuilder_spec, __pyx_t_1);
  __Pyx_XDECREF(__pyx_t_1); __pyx_t_1 = 0;
  if (unlikely(!__pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder)) __PYX_ERR(0, 1231, __pyx_L1_error)
  if (__Pyx_fix_up_extension_type_from_spec(&__pyx_type_8wildboar_4tree_6_ctree_ExtraTreeBuilder_spec, __pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder) < 0) __PYX_ERR(0, 1231, __pyx_L1_error)
  #else
  __pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder = &__pyx_type_8wildboar_4tree_6_ctree_ExtraTreeBuilder;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  __pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder->tp_base = __pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder;
  #endif
  #if !CYTHON_USE_TYPE_SPECS
  if (__Pyx_PyType_Ready(__pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder) < 0) __PYX_ERR(0, 1231, __pyx_L1_error)
  #endif
  #if PY_MAJOR_VERSION < 3
  __pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder->tp_print = 0;
  #endif
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if ((CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP) && likely(!__pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder->tp_dictoffset && __pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder->tp_getattro == PyObject_GenericGetAttr)) {
    __pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder->tp_getattro = __Pyx_PyObject_GenericGetAttr;
  }
  #endif
  if (__Pyx_SetVtable(__pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder, __pyx_vtabptr_8wildboar_4tree_6_ctree_ExtraTreeBuilder) < 0) __PYX_ERR(0, 1231, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_MergeVtables(__pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder) < 0) __PYX_ERR(0, 1231, __pyx_L1_error)
  #endif
  if (PyObject_SetAttr(__pyx_m, __pyx_n_s_ExtraTreeBuilder, (PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder) < 0) __PYX_ERR(0, 1231, __pyx_L1_error)
  #if !CYTHON_COMPILING_IN_LIMITED_API
  if (__Pyx_setup_reduce((PyObject *) __pyx_ptype_8wildboar_4tree_6_ctree_ExtraTreeBuilder) < 0) __PYX_ERR(0, 1231, __pyx_L1_error)
  #endif
  __Pyx_RefNannyFinishContext();
  return 0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_RefNannyFinishContext();
  return -1;
}

static int __Pyx_modinit_type_import_code(void) {
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__Pyx_modinit_type_import_code", 0);
  /*--- Type import code ---*/
  __pyx_t_1 = PyImport_ImportModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_t_1)) __PYX_ERR(3, 9, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_7cpython_4type_type = __Pyx_ImportType_3_0_3(__pyx_t_1, __Pyx_BUILTIN_MODULE_NAME, "type", 
  #if defined(PYPY_VERSION_NUM) && PYPY_VERSION_NUM < 0x050B0000
  sizeof(PyTypeObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyTypeObject),
  #elif CYTHON_COMPILING_IN_LIMITED_API
  sizeof(PyTypeObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyTypeObject),
  #else
  sizeof(PyHeapTypeObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyHeapTypeObject),
  #endif
  __Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_7cpython_4type_type) __PYX_ERR(3, 9, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyImport_ImportModule("numpy"); if (unlikely(!__pyx_t_1)) __PYX_ERR(2, 202, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_5numpy_dtype = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "dtype", sizeof(PyArray_Descr), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyArray_Descr),__Pyx_ImportType_CheckSize_Ignore_3_0_3); if (!__pyx_ptype_5numpy_dtype) __PYX_ERR(2, 202, __pyx_L1_error)
  __pyx_ptype_5numpy_flatiter = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "flatiter", sizeof(PyArrayIterObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyArrayIterObject),__Pyx_ImportType_CheckSize_Ignore_3_0_3); if (!__pyx_ptype_5numpy_flatiter) __PYX_ERR(2, 225, __pyx_L1_error)
  __pyx_ptype_5numpy_broadcast = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "broadcast", sizeof(PyArrayMultiIterObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyArrayMultiIterObject),__Pyx_ImportType_CheckSize_Ignore_3_0_3); if (!__pyx_ptype_5numpy_broadcast) __PYX_ERR(2, 229, __pyx_L1_error)
  __pyx_ptype_5numpy_ndarray = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "ndarray", sizeof(PyArrayObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyArrayObject),__Pyx_ImportType_CheckSize_Ignore_3_0_3); if (!__pyx_ptype_5numpy_ndarray) __PYX_ERR(2, 238, __pyx_L1_error)
  __pyx_ptype_5numpy_generic = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "generic", sizeof(PyObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyObject),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_5numpy_generic) __PYX_ERR(2, 809, __pyx_L1_error)
  __pyx_ptype_5numpy_number = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "number", sizeof(PyObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyObject),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_5numpy_number) __PYX_ERR(2, 811, __pyx_L1_error)
  __pyx_ptype_5numpy_integer = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "integer", sizeof(PyObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyObject),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_5numpy_integer) __PYX_ERR(2, 813, __pyx_L1_error)
  __pyx_ptype_5numpy_signedinteger = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "signedinteger", sizeof(PyObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyObject),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_5numpy_signedinteger) __PYX_ERR(2, 815, __pyx_L1_error)
  __pyx_ptype_5numpy_unsignedinteger = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "unsignedinteger", sizeof(PyObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyObject),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_5numpy_unsignedinteger) __PYX_ERR(2, 817, __pyx_L1_error)
  __pyx_ptype_5numpy_inexact = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "inexact", sizeof(PyObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyObject),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_5numpy_inexact) __PYX_ERR(2, 819, __pyx_L1_error)
  __pyx_ptype_5numpy_floating = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "floating", sizeof(PyObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyObject),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_5numpy_floating) __PYX_ERR(2, 821, __pyx_L1_error)
  __pyx_ptype_5numpy_complexfloating = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "complexfloating", sizeof(PyObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyObject),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_5numpy_complexfloating) __PYX_ERR(2, 823, __pyx_L1_error)
  __pyx_ptype_5numpy_flexible = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "flexible", sizeof(PyObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyObject),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_5numpy_flexible) __PYX_ERR(2, 825, __pyx_L1_error)
  __pyx_ptype_5numpy_character = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "character", sizeof(PyObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyObject),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_5numpy_character) __PYX_ERR(2, 827, __pyx_L1_error)
  __pyx_ptype_5numpy_ufunc = __Pyx_ImportType_3_0_3(__pyx_t_1, "numpy", "ufunc", sizeof(PyUFuncObject), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(PyUFuncObject),__Pyx_ImportType_CheckSize_Ignore_3_0_3); if (!__pyx_ptype_5numpy_ufunc) __PYX_ERR(2, 865, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyImport_ImportModule("wildboar.utils.data"); if (unlikely(!__pyx_t_1)) __PYX_ERR(4, 9, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_8wildboar_5utils_4data_Dataset = __Pyx_ImportType_3_0_3(__pyx_t_1, "wildboar.utils.data", "Dataset", sizeof(struct __pyx_obj_8wildboar_5utils_4data_Dataset), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(struct __pyx_obj_8wildboar_5utils_4data_Dataset),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_8wildboar_5utils_4data_Dataset) __PYX_ERR(4, 9, __pyx_L1_error)
  __pyx_vtabptr_8wildboar_5utils_4data_Dataset = (struct __pyx_vtabstruct_8wildboar_5utils_4data_Dataset*)__Pyx_GetVtable(__pyx_ptype_8wildboar_5utils_4data_Dataset); if (unlikely(!__pyx_vtabptr_8wildboar_5utils_4data_Dataset)) __PYX_ERR(4, 9, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyImport_ImportModule("wildboar.distance._distance"); if (unlikely(!__pyx_t_1)) __PYX_ERR(5, 31, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure = __Pyx_ImportType_3_0_3(__pyx_t_1, "wildboar.distance._distance", "SubsequenceDistanceMeasure", sizeof(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(struct __pyx_obj_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure) __PYX_ERR(5, 31, __pyx_L1_error)
  __pyx_vtabptr_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure = (struct __pyx_vtabstruct_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure*)__Pyx_GetVtable(__pyx_ptype_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure); if (unlikely(!__pyx_vtabptr_8wildboar_8distance_9_distance_SubsequenceDistanceMeasure)) __PYX_ERR(5, 31, __pyx_L1_error)
  __pyx_ptype_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure = __Pyx_ImportType_3_0_3(__pyx_t_1, "wildboar.distance._distance", "ScaledSubsequenceDistanceMeasure", sizeof(struct __pyx_obj_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(struct __pyx_obj_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure) __PYX_ERR(5, 124, __pyx_L1_error)
  __pyx_vtabptr_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure = (struct __pyx_vtabstruct_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure*)__Pyx_GetVtable(__pyx_ptype_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure); if (unlikely(!__pyx_vtabptr_8wildboar_8distance_9_distance_ScaledSubsequenceDistanceMeasure)) __PYX_ERR(5, 124, __pyx_L1_error)
  __pyx_ptype_8wildboar_8distance_9_distance_DistanceMeasure = __Pyx_ImportType_3_0_3(__pyx_t_1, "wildboar.distance._distance", "DistanceMeasure", sizeof(struct __pyx_obj_8wildboar_8distance_9_distance_DistanceMeasure), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(struct __pyx_obj_8wildboar_8distance_9_distance_DistanceMeasure),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_8wildboar_8distance_9_distance_DistanceMeasure) __PYX_ERR(5, 128, __pyx_L1_error)
  __pyx_vtabptr_8wildboar_8distance_9_distance_DistanceMeasure = (struct __pyx_vtabstruct_8wildboar_8distance_9_distance_DistanceMeasure*)__Pyx_GetVtable(__pyx_ptype_8wildboar_8distance_9_distance_DistanceMeasure); if (unlikely(!__pyx_vtabptr_8wildboar_8distance_9_distance_DistanceMeasure)) __PYX_ERR(5, 128, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyImport_ImportModule("wildboar.transform._feature"); if (unlikely(!__pyx_t_1)) __PYX_ERR(6, 14, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_8wildboar_9transform_8_feature_FeatureEngineer = __Pyx_ImportType_3_0_3(__pyx_t_1, "wildboar.transform._feature", "FeatureEngineer", sizeof(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(struct __pyx_obj_8wildboar_9transform_8_feature_FeatureEngineer),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_8wildboar_9transform_8_feature_FeatureEngineer) __PYX_ERR(6, 14, __pyx_L1_error)
  __pyx_vtabptr_8wildboar_9transform_8_feature_FeatureEngineer = (struct __pyx_vtabstruct_8wildboar_9transform_8_feature_FeatureEngineer*)__Pyx_GetVtable(__pyx_ptype_8wildboar_9transform_8_feature_FeatureEngineer); if (unlikely(!__pyx_vtabptr_8wildboar_9transform_8_feature_FeatureEngineer)) __PYX_ERR(6, 14, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyImport_ImportModule("wildboar.utils.misc"); if (unlikely(!__pyx_t_1)) __PYX_ERR(7, 9, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  __pyx_ptype_8wildboar_5utils_4misc_CList = __Pyx_ImportType_3_0_3(__pyx_t_1, "wildboar.utils.misc", "CList", sizeof(struct __pyx_obj_8wildboar_5utils_4misc_CList), __PYX_GET_STRUCT_ALIGNMENT_3_0_3(struct __pyx_obj_8wildboar_5utils_4misc_CList),__Pyx_ImportType_CheckSize_Warn_3_0_3); if (!__pyx_ptype_8wildboar_5utils_4misc_CList) __PYX_ERR(7, 9, __pyx_L1_error)
  __pyx_vtabptr_8wildboar_5utils_4misc_CList = (struct __pyx_vtabstruct_8wildboar_5utils_4misc_CList*)__Pyx_GetVtable(__pyx_ptype_8wildboar_5utils_4misc_CList); if (unlikely(!__pyx_vtabptr_8wildboar_5utils_4misc_CList)) __PYX_ERR(7, 9, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __Pyx_RefNannyFinishContext();
  return 0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_RefNannyFinishContext();
  return -1;
}

static int __Pyx_modinit_variable_import_code(void) {
  __Pyx_RefNannyDeclarations
  __Pyx_RefNannySetupContext("__Pyx_modinit_variable_import_code", 0);
  /*--- Variable import code ---*/
  __Pyx_RefNannyFinishContext();
  return 0;
}

static int __Pyx_modinit_function_import_code(void) {
  __Pyx_RefNannyDeclarations
  PyObject *__pyx_t_1 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannySetupContext("__Pyx_modinit_function_import_code", 0);
  /*--- Function import code ---*/
  __pyx_t_1 = PyImport_ImportModule("wildboar.utils.misc"); if (!__pyx_t_1) __PYX_ERR(0, 1, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  if (__Pyx_ImportFunction_3_0_3(__pyx_t_1, "argsort", (void (**)(void))&__pyx_f_8wildboar_5utils_4misc_argsort, "void (double *, Py_ssize_t *, Py_ssize_t)") < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  if (__Pyx_ImportFunction_3_0_3(__pyx_t_1, "safe_realloc", (void (**)(void))&__pyx_f_8wildboar_5utils_4misc_safe_realloc, "int (void **, Py_ssize_t)") < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __pyx_t_1 = PyImport_ImportModule("wildboar.utils.rand"); if (!__pyx_t_1) __PYX_ERR(0, 1, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_1);
  if (__Pyx_ImportFunction_3_0_3(__pyx_t_1, "rand_int", (void (**)(void))&__pyx_f_8wildboar_5utils_4rand_rand_int, "size_t (size_t, size_t, size_t *)") < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  if (__Pyx_ImportFunction_3_0_3(__pyx_t_1, "rand_uniform", (void (**)(void))&__pyx_f_8wildboar_5utils_4rand_rand_uniform, "double (double, double, size_t *)") < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_1); __pyx_t_1 = 0;
  __Pyx_RefNannyFinishContext();
  return 0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_1);
  __Pyx_RefNannyFinishContext();
  return -1;
}


#if PY_MAJOR_VERSION >= 3
#if CYTHON_PEP489_MULTI_PHASE_INIT
static PyObject* __pyx_pymod_create(PyObject *spec, PyModuleDef *def); /*proto*/
static int __pyx_pymod_exec__ctree(PyObject* module); /*proto*/
static PyModuleDef_Slot __pyx_moduledef_slots[] = {
  {Py_mod_create, (void*)__pyx_pymod_create},
  {Py_mod_exec, (void*)__pyx_pymod_exec__ctree},
  {0, NULL}
};
#endif

#ifdef __cplusplus
namespace {
  struct PyModuleDef __pyx_moduledef =
  #else
  static struct PyModuleDef __pyx_moduledef =
  #endif
  {
      PyModuleDef_HEAD_INIT,
      "_ctree",
      0, /* m_doc */
    #if CYTHON_PEP489_MULTI_PHASE_INIT
      0, /* m_size */
    #elif CYTHON_USE_MODULE_STATE
      sizeof(__pyx_mstate), /* m_size */
    #else
      -1, /* m_size */
    #endif
      __pyx_methods /* m_methods */,
    #if CYTHON_PEP489_MULTI_PHASE_INIT
      __pyx_moduledef_slots, /* m_slots */
    #else
      NULL, /* m_reload */
    #endif
    #if CYTHON_USE_MODULE_STATE
      __pyx_m_traverse, /* m_traverse */
      __pyx_m_clear, /* m_clear */
      NULL /* m_free */
    #else
      NULL, /* m_traverse */
      NULL, /* m_clear */
      NULL /* m_free */
    #endif
  };
  #ifdef __cplusplus
} /* anonymous namespace */
#endif
#endif

#ifndef CYTHON_NO_PYINIT_EXPORT
#define __Pyx_PyMODINIT_FUNC PyMODINIT_FUNC
#elif PY_MAJOR_VERSION < 3
#ifdef __cplusplus
#define __Pyx_PyMODINIT_FUNC extern "C" void
#else
#define __Pyx_PyMODINIT_FUNC void
#endif
#else
#ifdef __cplusplus
#define __Pyx_PyMODINIT_FUNC extern "C" PyObject *
#else
#define __Pyx_PyMODINIT_FUNC PyObject *
#endif
#endif


#if PY_MAJOR_VERSION < 3
__Pyx_PyMODINIT_FUNC init_ctree(void) CYTHON_SMALL_CODE; /*proto*/
__Pyx_PyMODINIT_FUNC init_ctree(void)
#else
__Pyx_PyMODINIT_FUNC PyInit__ctree(void) CYTHON_SMALL_CODE; /*proto*/
__Pyx_PyMODINIT_FUNC PyInit__ctree(void)
#if CYTHON_PEP489_MULTI_PHASE_INIT
{
  return PyModuleDef_Init(&__pyx_moduledef);
}
static CYTHON_SMALL_CODE int __Pyx_check_single_interpreter(void) {
    #if PY_VERSION_HEX >= 0x030700A1
    static PY_INT64_T main_interpreter_id = -1;
    PY_INT64_T current_id = PyInterpreterState_GetID(PyThreadState_Get()->interp);
    if (main_interpreter_id == -1) {
        main_interpreter_id = current_id;
        return (unlikely(current_id == -1)) ? -1 : 0;
    } else if (unlikely(main_interpreter_id != current_id))
    #else
    static PyInterpreterState *main_interpreter = NULL;
    PyInterpreterState *current_interpreter = PyThreadState_Get()->interp;
    if (!main_interpreter) {
        main_interpreter = current_interpreter;
    } else if (unlikely(main_interpreter != current_interpreter))
    #endif
    {
        PyErr_SetString(
            PyExc_ImportError,
            "Interpreter change detected - this module can only be loaded into one interpreter per process.");
        return -1;
    }
    return 0;
}
#if CYTHON_COMPILING_IN_LIMITED_API
static CYTHON_SMALL_CODE int __Pyx_copy_spec_to_module(PyObject *spec, PyObject *module, const char* from_name, const char* to_name, int allow_none)
#else
static CYTHON_SMALL_CODE int __Pyx_copy_spec_to_module(PyObject *spec, PyObject *moddict, const char* from_name, const char* to_name, int allow_none)
#endif
{
    PyObject *value = PyObject_GetAttrString(spec, from_name);
    int result = 0;
    if (likely(value)) {
        if (allow_none || value != Py_None) {
#if CYTHON_COMPILING_IN_LIMITED_API
            result = PyModule_AddObject(module, to_name, value);
#else
            result = PyDict_SetItemString(moddict, to_name, value);
#endif
        }
        Py_DECREF(value);
    } else if (PyErr_ExceptionMatches(PyExc_AttributeError)) {
        PyErr_Clear();
    } else {
        result = -1;
    }
    return result;
}
static CYTHON_SMALL_CODE PyObject* __pyx_pymod_create(PyObject *spec, PyModuleDef *def) {
    PyObject *module = NULL, *moddict, *modname;
    CYTHON_UNUSED_VAR(def);
    if (__Pyx_check_single_interpreter())
        return NULL;
    if (__pyx_m)
        return __Pyx_NewRef(__pyx_m);
    modname = PyObject_GetAttrString(spec, "name");
    if (unlikely(!modname)) goto bad;
    module = PyModule_NewObject(modname);
    Py_DECREF(modname);
    if (unlikely(!module)) goto bad;
#if CYTHON_COMPILING_IN_LIMITED_API
    moddict = module;
#else
    moddict = PyModule_GetDict(module);
    if (unlikely(!moddict)) goto bad;
#endif
    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "loader", "__loader__", 1) < 0)) goto bad;
    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "origin", "__file__", 1) < 0)) goto bad;
    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "parent", "__package__", 1) < 0)) goto bad;
    if (unlikely(__Pyx_copy_spec_to_module(spec, moddict, "submodule_search_locations", "__path__", 0) < 0)) goto bad;
    return module;
bad:
    Py_XDECREF(module);
    return NULL;
}


static CYTHON_SMALL_CODE int __pyx_pymod_exec__ctree(PyObject *__pyx_pyinit_module)
#endif
#endif
{
  int stringtab_initialized = 0;
  #if CYTHON_USE_MODULE_STATE
  int pystate_addmodule_run = 0;
  #endif
  PyObject *__pyx_t_1 = NULL;
  PyObject *__pyx_t_2 = NULL;
  PyObject *__pyx_t_3 = NULL;
  int __pyx_lineno = 0;
  const char *__pyx_filename = NULL;
  int __pyx_clineno = 0;
  __Pyx_RefNannyDeclarations
  #if CYTHON_PEP489_MULTI_PHASE_INIT
  if (__pyx_m) {
    if (__pyx_m == __pyx_pyinit_module) return 0;
    PyErr_SetString(PyExc_RuntimeError, "Module '_ctree' has already been imported. Re-initialisation is not supported.");
    return -1;
  }
  #elif PY_MAJOR_VERSION >= 3
  if (__pyx_m) return __Pyx_NewRef(__pyx_m);
  #endif
  /*--- Module creation code ---*/
  #if CYTHON_PEP489_MULTI_PHASE_INIT
  __pyx_m = __pyx_pyinit_module;
  Py_INCREF(__pyx_m);
  #else
  #if PY_MAJOR_VERSION < 3
  __pyx_m = Py_InitModule4("_ctree", __pyx_methods, 0, 0, PYTHON_API_VERSION); Py_XINCREF(__pyx_m);
  if (unlikely(!__pyx_m)) __PYX_ERR(0, 1, __pyx_L1_error)
  #elif CYTHON_USE_MODULE_STATE
  __pyx_t_1 = PyModule_Create(&__pyx_moduledef); if (unlikely(!__pyx_t_1)) __PYX_ERR(0, 1, __pyx_L1_error)
  {
    int add_module_result = PyState_AddModule(__pyx_t_1, &__pyx_moduledef);
    __pyx_t_1 = 0; /* transfer ownership from __pyx_t_1 to _ctree pseudovariable */
    if (unlikely((add_module_result < 0))) __PYX_ERR(0, 1, __pyx_L1_error)
    pystate_addmodule_run = 1;
  }
  #else
  __pyx_m = PyModule_Create(&__pyx_moduledef);
  if (unlikely(!__pyx_m)) __PYX_ERR(0, 1, __pyx_L1_error)
  #endif
  #endif
  CYTHON_UNUSED_VAR(__pyx_t_1);
  __pyx_d = PyModule_GetDict(__pyx_m); if (unlikely(!__pyx_d)) __PYX_ERR(0, 1, __pyx_L1_error)
  Py_INCREF(__pyx_d);
  __pyx_b = PyImport_AddModule(__Pyx_BUILTIN_MODULE_NAME); if (unlikely(!__pyx_b)) __PYX_ERR(0, 1, __pyx_L1_error)
  Py_INCREF(__pyx_b);
  __pyx_cython_runtime = PyImport_AddModule((char *) "cython_runtime"); if (unlikely(!__pyx_cython_runtime)) __PYX_ERR(0, 1, __pyx_L1_error)
  Py_INCREF(__pyx_cython_runtime);
  if (PyObject_SetAttrString(__pyx_m, "__builtins__", __pyx_b) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  #if CYTHON_REFNANNY
__Pyx_RefNanny = __Pyx_RefNannyImportAPI("refnanny");
if (!__Pyx_RefNanny) {
  PyErr_Clear();
  __Pyx_RefNanny = __Pyx_RefNannyImportAPI("Cython.Runtime.refnanny");
  if (!__Pyx_RefNanny)
      Py_FatalError("failed to import 'refnanny' module");
}
#endif
  __Pyx_RefNannySetupContext("__Pyx_PyMODINIT_FUNC PyInit__ctree(void)", 0);
  if (__Pyx_check_binary_version(__PYX_LIMITED_VERSION_HEX, __Pyx_get_runtime_version(), CYTHON_COMPILING_IN_LIMITED_API) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  #ifdef __Pxy_PyFrame_Initialize_Offsets
  __Pxy_PyFrame_Initialize_Offsets();
  #endif
  __pyx_empty_tuple = PyTuple_New(0); if (unlikely(!__pyx_empty_tuple)) __PYX_ERR(0, 1, __pyx_L1_error)
  __pyx_empty_bytes = PyBytes_FromStringAndSize("", 0); if (unlikely(!__pyx_empty_bytes)) __PYX_ERR(0, 1, __pyx_L1_error)
  __pyx_empty_unicode = PyUnicode_FromStringAndSize("", 0); if (unlikely(!__pyx_empty_unicode)) __PYX_ERR(0, 1, __pyx_L1_error)
  #ifdef __Pyx_CyFunction_USED
  if (__pyx_CyFunction_init(__pyx_m) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  #endif
  #ifdef __Pyx_FusedFunction_USED
  if (__pyx_FusedFunction_init(__pyx_m) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  #endif
  #ifdef __Pyx_Coroutine_USED
  if (__pyx_Coroutine_init(__pyx_m) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  #endif
  #ifdef __Pyx_Generator_USED
  if (__pyx_Generator_init(__pyx_m) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  #endif
  #ifdef __Pyx_AsyncGen_USED
  if (__pyx_AsyncGen_init(__pyx_m) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  #endif
  #ifdef __Pyx_StopAsyncIteration_USED
  if (__pyx_StopAsyncIteration_init(__pyx_m) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  #endif
  /*--- Library function declarations ---*/
  /*--- Threads initialization code ---*/
  #if defined(WITH_THREAD) && PY_VERSION_HEX < 0x030700F0 && defined(__PYX_FORCE_INIT_THREADS) && __PYX_FORCE_INIT_THREADS
  PyEval_InitThreads();
  #endif
  /*--- Initialize various global constants etc. ---*/
  if (__Pyx_InitConstants() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  stringtab_initialized = 1;
  if (__Pyx_InitGlobals() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  #if PY_MAJOR_VERSION < 3 && (__PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT)
  if (__Pyx_init_sys_getdefaultencoding_params() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  #endif
  if (__pyx_module_is_main_wildboar__tree___ctree) {
    if (PyObject_SetAttr(__pyx_m, __pyx_n_s_name, __pyx_n_s_main) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  }
  #if PY_MAJOR_VERSION >= 3
  {
    PyObject *modules = PyImport_GetModuleDict(); if (unlikely(!modules)) __PYX_ERR(0, 1, __pyx_L1_error)
    if (!PyDict_GetItemString(modules, "wildboar.tree._ctree")) {
      if (unlikely((PyDict_SetItemString(modules, "wildboar.tree._ctree", __pyx_m) < 0))) __PYX_ERR(0, 1, __pyx_L1_error)
    }
  }
  #endif
  /*--- Builtin init code ---*/
  if (__Pyx_InitCachedBuiltins() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  /*--- Constants init code ---*/
  if (__Pyx_InitCachedConstants() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  /*--- Global type/function init code ---*/
  (void)__Pyx_modinit_global_init_code();
  (void)__Pyx_modinit_variable_export_code();
  (void)__Pyx_modinit_function_export_code();
  if (unlikely((__Pyx_modinit_type_init_code() < 0))) __PYX_ERR(0, 1, __pyx_L1_error)
  if (unlikely((__Pyx_modinit_type_import_code() < 0))) __PYX_ERR(0, 1, __pyx_L1_error)
  (void)__Pyx_modinit_variable_import_code();
  if (unlikely((__Pyx_modinit_function_import_code() < 0))) __PYX_ERR(0, 1, __pyx_L1_error)
  /*--- Execution code ---*/
  #if defined(__Pyx_Generator_USED) || defined(__Pyx_Coroutine_USED)
  if (__Pyx_patch_abc() < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  #endif

  /* "wildboar/tree/_ctree.pyx":9
 * # License: BSD 3 clause
 * 
 * import numpy as np             # <<<<<<<<<<<<<<
 * 
 * cimport numpy as np
 */
  __pyx_t_2 = __Pyx_ImportDottedModule(__pyx_n_s_numpy, NULL); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 9, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_np, __pyx_t_2) < 0) __PYX_ERR(0, 9, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;

  /* "wildboar/tree/_ctree.pyx":16
 * from libc.string cimport memcpy, memset
 * 
 * from scipy.sparse import csr_matrix             # <<<<<<<<<<<<<<
 * 
 * from ..distance._distance cimport DistanceMeasure
 */
  __pyx_t_2 = PyList_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 16, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_INCREF(__pyx_n_s_csr_matrix);
  __Pyx_GIVEREF(__pyx_n_s_csr_matrix);
  if (__Pyx_PyList_SET_ITEM(__pyx_t_2, 0, __pyx_n_s_csr_matrix)) __PYX_ERR(0, 16, __pyx_L1_error);
  __pyx_t_3 = __Pyx_Import(__pyx_n_s_scipy_sparse, __pyx_t_2, 0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 16, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __pyx_t_2 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_csr_matrix); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 16, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_csr_matrix, __pyx_t_2) < 0) __PYX_ERR(0, 16, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "wildboar/tree/_ctree.pyx":19
 * 
 * from ..distance._distance cimport DistanceMeasure
 * from ..distance import _DISTANCE_MEASURE             # <<<<<<<<<<<<<<
 * 
 * from ..transform._feature cimport Feature, FeatureEngineer
 */
  __pyx_t_3 = PyList_New(1); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 19, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_INCREF(__pyx_n_s_DISTANCE_MEASURE);
  __Pyx_GIVEREF(__pyx_n_s_DISTANCE_MEASURE);
  if (__Pyx_PyList_SET_ITEM(__pyx_t_3, 0, __pyx_n_s_DISTANCE_MEASURE)) __PYX_ERR(0, 19, __pyx_L1_error);
  __pyx_t_2 = __Pyx_Import(__pyx_n_s_distance, __pyx_t_3, 2); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 19, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __pyx_t_3 = __Pyx_ImportFrom(__pyx_t_2, __pyx_n_s_DISTANCE_MEASURE); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 19, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_DISTANCE_MEASURE, __pyx_t_3) < 0) __PYX_ERR(0, 19, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;

  /* "wildboar/tree/_ctree.pyx":23
 * from ..transform._feature cimport Feature, FeatureEngineer
 * 
 * from ..utils.data import check_dataset             # <<<<<<<<<<<<<<
 * from ..utils.data cimport Dataset
 * from ..utils.misc cimport CList, argsort, safe_realloc
 */
  __pyx_t_2 = PyList_New(1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 23, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  __Pyx_INCREF(__pyx_n_s_check_dataset);
  __Pyx_GIVEREF(__pyx_n_s_check_dataset);
  if (__Pyx_PyList_SET_ITEM(__pyx_t_2, 0, __pyx_n_s_check_dataset)) __PYX_ERR(0, 23, __pyx_L1_error);
  __pyx_t_3 = __Pyx_Import(__pyx_n_s_utils_data, __pyx_t_2, 2); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 23, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __pyx_t_2 = __Pyx_ImportFrom(__pyx_t_3, __pyx_n_s_check_dataset); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 23, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_2);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_check_dataset, __pyx_t_2) < 0) __PYX_ERR(0, 23, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_2); __pyx_t_2 = 0;
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "wildboar/tree/_ctree.pyx":29
 * 
 * 
 * cdef double FEATURE_THRESHOLD = 1e-7             # <<<<<<<<<<<<<<
 * 
 * 
 */
  __pyx_v_8wildboar_4tree_6_ctree_FEATURE_THRESHOLD = 1e-7;

  /* "wildboar/tree/_ctree.pyx":47
 *         self.feature_engineer = feature_engineer
 * 
 *     def __reduce__(self):             # <<<<<<<<<<<<<<
 *         return self.__class__, (self.feature_engineer, )
 * 
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_19TreeFeatureEngineer_3__reduce__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_TreeFeatureEngineer___reduce, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__9)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 47, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (__Pyx_SetItemOnTypeDict((PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer, __pyx_n_s_reduce, __pyx_t_3) < 0) __PYX_ERR(0, 47, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  PyType_Modified(__pyx_ptype_8wildboar_4tree_6_ctree_TreeFeatureEngineer);

  /* "wildboar/tree/_ctree.pyx":138
 *         self.alpha = alpha
 * 
 *     def __reduce__(self):             # <<<<<<<<<<<<<<
 *         return self.__class__, (self.feature_engineer, self.alpha)
 * 
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_26DynamicTreeFeatureEngineer_3__reduce__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_DynamicTreeFeatureEngineer___red, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__10)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 138, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (__Pyx_SetItemOnTypeDict((PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer, __pyx_n_s_reduce, __pyx_t_3) < 0) __PYX_ERR(0, 138, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  PyType_Modified(__pyx_ptype_8wildboar_4tree_6_ctree_DynamicTreeFeatureEngineer);

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_9Criterion_1__reduce_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_Criterion___reduce_cython, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__11)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_reduce_cython, __pyx_t_3) < 0) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "self.sample_weight,self.samples cannot be converted to a Python object for pickling"
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_9Criterion_3__setstate_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_Criterion___setstate_cython, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__13)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_setstate_cython, __pyx_t_3) < 0) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_23ClassificationCriterion_5__reduce_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_ClassificationCriterion___reduce, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__14)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_reduce_cython, __pyx_t_3) < 0) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_23ClassificationCriterion_7__setstate_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_ClassificationCriterion___setsta, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__15)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_setstate_cython, __pyx_t_3) < 0) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_13GiniCriterion_1__reduce_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_GiniCriterion___reduce_cython, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__16)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_reduce_cython, __pyx_t_3) < 0) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_13GiniCriterion_3__setstate_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_GiniCriterion___setstate_cython, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__17)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_setstate_cython, __pyx_t_3) < 0) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_16EntropyCriterion_1__reduce_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_EntropyCriterion___reduce_cython, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__18)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_reduce_cython, __pyx_t_3) < 0) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_16EntropyCriterion_3__setstate_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_EntropyCriterion___setstate_cyth, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__19)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_setstate_cython, __pyx_t_3) < 0) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_19RegressionCriterion_3__reduce_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_RegressionCriterion___reduce_cyt, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__20)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_reduce_cython, __pyx_t_3) < 0) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_19RegressionCriterion_5__setstate_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_RegressionCriterion___setstate_c, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__21)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_setstate_cython, __pyx_t_3) < 0) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_12MSECriterion_1__reduce_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_MSECriterion___reduce_cython, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__22)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_reduce_cython, __pyx_t_3) < 0) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_12MSECriterion_3__setstate_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_MSECriterion___setstate_cython, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__23)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_setstate_cython, __pyx_t_3) < 0) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "wildboar/tree/_ctree.pyx":472
 *         right[0] -= (self.sum_right / self.weighted_n_right) ** 2
 * 
 * cpdef Tree _make_tree(             # <<<<<<<<<<<<<<
 *     TreeFeatureEngineer feature_engineer,
 *     Py_ssize_t n_labels,
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_1_make_tree, 0, __pyx_n_s_make_tree, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__25)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 472, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_make_tree, __pyx_t_3) < 0) __PYX_ERR(0, 472, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "wildboar/tree/_ctree.pyx":581
 *             free(self._n_weighted_node_samples)
 * 
 *     def __reduce__(self):             # <<<<<<<<<<<<<<
 *         return _make_tree, (
 *             self.feature_engineer,
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_4Tree_5__reduce__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_Tree___reduce, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__26)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 581, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (__Pyx_SetItemOnTypeDict((PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_Tree, __pyx_n_s_reduce, __pyx_t_3) < 0) __PYX_ERR(0, 581, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  PyType_Modified(__pyx_ptype_8wildboar_4tree_6_ctree_Tree);

  /* "wildboar/tree/_ctree.pyx":671
 *         return arr
 * 
 *     def predict(self, object X):             # <<<<<<<<<<<<<<
 *         cdef np.ndarray apply = self.apply(X)
 *         cdef np.ndarray predict = np.take(self.value, apply, axis=0, mode="clip")
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_4Tree_7predict, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_Tree_predict, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__28)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 671, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (__Pyx_SetItemOnTypeDict((PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_Tree, __pyx_n_s_predict, __pyx_t_3) < 0) __PYX_ERR(0, 671, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  PyType_Modified(__pyx_ptype_8wildboar_4tree_6_ctree_Tree);

  /* "wildboar/tree/_ctree.pyx":678
 *         return predict
 * 
 *     def apply(self, object X):             # <<<<<<<<<<<<<<
 *         if not isinstance(X, np.ndarray):
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_4Tree_9apply, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_Tree_apply, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__30)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 678, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (__Pyx_SetItemOnTypeDict((PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_Tree, __pyx_n_s_apply, __pyx_t_3) < 0) __PYX_ERR(0, 678, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  PyType_Modified(__pyx_ptype_8wildboar_4tree_6_ctree_Tree);

  /* "wildboar/tree/_ctree.pyx":706
 *         return out
 * 
 *     def decision_path(self, object X):             # <<<<<<<<<<<<<<
 *         if not isinstance(X, np.ndarray):
 *             raise ValueError(f"X should be np.ndarray, got {type(X)}")
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_4Tree_11decision_path, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_Tree_decision_path, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__32)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 706, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (__Pyx_SetItemOnTypeDict((PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_Tree, __pyx_n_s_decision_path, __pyx_t_3) < 0) __PYX_ERR(0, 706, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  PyType_Modified(__pyx_ptype_8wildboar_4tree_6_ctree_Tree);

  /* "wildboar/tree/_ctree.pyx":951
 *         return self.tree
 * 
 *     cpdef Py_ssize_t build_tree(self):             # <<<<<<<<<<<<<<
 *         cdef Py_ssize_t root_node_id
 *         cdef Py_ssize_t max_depth = 0
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_11TreeBuilder_5build_tree, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_TreeBuilder_build_tree, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__33)); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 951, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (__Pyx_SetItemOnTypeDict((PyObject *)__pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder, __pyx_n_s_build_tree, __pyx_t_3) < 0) __PYX_ERR(0, 951, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;
  PyType_Modified(__pyx_ptype_8wildboar_4tree_6_ctree_TreeBuilder);

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_11TreeBuilder_7__reduce_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_TreeBuilder___reduce_cython, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__34)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_reduce_cython, __pyx_t_3) < 0) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_11TreeBuilder_9__setstate_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_TreeBuilder___setstate_cython, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__35)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_setstate_cython, __pyx_t_3) < 0) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":1
 * def __reduce_cython__(self):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_1__reduce_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_ExtraTreeBuilder___reduce_cython, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__36)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_reduce_cython, __pyx_t_3) < 0) __PYX_ERR(1, 1, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "(tree fragment)":3
 * def __reduce_cython__(self):
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 * def __setstate_cython__(self, __pyx_state):             # <<<<<<<<<<<<<<
 *     raise TypeError, "no default __reduce__ due to non-trivial __cinit__"
 */
  __pyx_t_3 = __Pyx_CyFunction_New(&__pyx_mdef_8wildboar_4tree_6_ctree_16ExtraTreeBuilder_3__setstate_cython__, __Pyx_CYFUNCTION_CCLASS, __pyx_n_s_ExtraTreeBuilder___setstate_cyth, NULL, __pyx_n_s_wildboar_tree__ctree, __pyx_d, ((PyObject *)__pyx_codeobj__37)); if (unlikely(!__pyx_t_3)) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_setstate_cython, __pyx_t_3) < 0) __PYX_ERR(1, 3, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /* "wildboar/tree/_ctree.pyx":1
 * # cython: cdivision=True             # <<<<<<<<<<<<<<
 * # cython: boundscheck=False
 * # cython: wraparound=False
 */
  __pyx_t_3 = __Pyx_PyDict_NewPresized(0); if (unlikely(!__pyx_t_3)) __PYX_ERR(0, 1, __pyx_L1_error)
  __Pyx_GOTREF(__pyx_t_3);
  if (PyDict_SetItem(__pyx_d, __pyx_n_s_test, __pyx_t_3) < 0) __PYX_ERR(0, 1, __pyx_L1_error)
  __Pyx_DECREF(__pyx_t_3); __pyx_t_3 = 0;

  /*--- Wrapped vars code ---*/

  goto __pyx_L0;
  __pyx_L1_error:;
  __Pyx_XDECREF(__pyx_t_2);
  __Pyx_XDECREF(__pyx_t_3);
  if (__pyx_m) {
    if (__pyx_d && stringtab_initialized) {
      __Pyx_AddTraceback("init wildboar.tree._ctree", __pyx_clineno, __pyx_lineno, __pyx_filename);
    }
    #if !CYTHON_USE_MODULE_STATE
    Py_CLEAR(__pyx_m);
    #else
    Py_DECREF(__pyx_m);
    if (pystate_addmodule_run) {
      PyObject *tp, *value, *tb;
      PyErr_Fetch(&tp, &value, &tb);
      PyState_RemoveModule(&__pyx_moduledef);
      PyErr_Restore(tp, value, tb);
    }
    #endif
  } else if (!PyErr_Occurred()) {
    PyErr_SetString(PyExc_ImportError, "init wildboar.tree._ctree");
  }
  __pyx_L0:;
  __Pyx_RefNannyFinishContext();
  #if CYTHON_PEP489_MULTI_PHASE_INIT
  return (__pyx_m != NULL) ? 0 : -1;
  #elif PY_MAJOR_VERSION >= 3
  return __pyx_m;
  #else
  return;
  #endif
}
/* #### Code section: cleanup_globals ### */
/* #### Code section: cleanup_module ### */
/* #### Code section: main_method ### */
/* #### Code section: utility_code_pragmas ### */
#ifdef _MSC_VER
#pragma warning( push )
/* Warning 4127: conditional expression is constant
 * Cython uses constant conditional expressions to allow in inline functions to be optimized at
 * compile-time, so this warning is not useful
 */
#pragma warning( disable : 4127 )
#endif



/* #### Code section: utility_code_def ### */

/* --- Runtime support code --- */
/* Refnanny */
#if CYTHON_REFNANNY
static __Pyx_RefNannyAPIStruct *__Pyx_RefNannyImportAPI(const char *modname) {
    PyObject *m = NULL, *p = NULL;
    void *r = NULL;
    m = PyImport_ImportModule(modname);
    if (!m) goto end;
    p = PyObject_GetAttrString(m, "RefNannyAPI");
    if (!p) goto end;
    r = PyLong_AsVoidPtr(p);
end:
    Py_XDECREF(p);
    Py_XDECREF(m);
    return (__Pyx_RefNannyAPIStruct *)r;
}
#endif

/* PyErrExceptionMatches */
#if CYTHON_FAST_THREAD_STATE
static int __Pyx_PyErr_ExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
    Py_ssize_t i, n;
    n = PyTuple_GET_SIZE(tuple);
#if PY_MAJOR_VERSION >= 3
    for (i=0; i<n; i++) {
        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
    }
#endif
    for (i=0; i<n; i++) {
        if (__Pyx_PyErr_GivenExceptionMatches(exc_type, PyTuple_GET_ITEM(tuple, i))) return 1;
    }
    return 0;
}
static CYTHON_INLINE int __Pyx_PyErr_ExceptionMatchesInState(PyThreadState* tstate, PyObject* err) {
    int result;
    PyObject *exc_type;
#if PY_VERSION_HEX >= 0x030C00A6
    PyObject *current_exception = tstate->current_exception;
    if (unlikely(!current_exception)) return 0;
    exc_type = (PyObject*) Py_TYPE(current_exception);
    if (exc_type == err) return 1;
#else
    exc_type = tstate->curexc_type;
    if (exc_type == err) return 1;
    if (unlikely(!exc_type)) return 0;
#endif
    #if CYTHON_AVOID_BORROWED_REFS
    Py_INCREF(exc_type);
    #endif
    if (unlikely(PyTuple_Check(err))) {
        result = __Pyx_PyErr_ExceptionMatchesTuple(exc_type, err);
    } else {
        result = __Pyx_PyErr_GivenExceptionMatches(exc_type, err);
    }
    #if CYTHON_AVOID_BORROWED_REFS
    Py_DECREF(exc_type);
    #endif
    return result;
}
#endif

/* PyErrFetchRestore */
#if CYTHON_FAST_THREAD_STATE
static CYTHON_INLINE void __Pyx_ErrRestoreInState(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
#if PY_VERSION_HEX >= 0x030C00A6
    PyObject *tmp_value;
    assert(type == NULL || (value != NULL && type == (PyObject*) Py_TYPE(value)));
    if (value) {
        #if CYTHON_COMPILING_IN_CPYTHON
        if (unlikely(((PyBaseExceptionObject*) value)->traceback != tb))
        #endif
            PyException_SetTraceback(value, tb);
    }
    tmp_value = tstate->current_exception;
    tstate->current_exception = value;
    Py_XDECREF(tmp_value);
    Py_XDECREF(type);
    Py_XDECREF(tb);
#else
    PyObject *tmp_type, *tmp_value, *tmp_tb;
    tmp_type = tstate->curexc_type;
    tmp_value = tstate->curexc_value;
    tmp_tb = tstate->curexc_traceback;
    tstate->curexc_type = type;
    tstate->curexc_value = value;
    tstate->curexc_traceback = tb;
    Py_XDECREF(tmp_type);
    Py_XDECREF(tmp_value);
    Py_XDECREF(tmp_tb);
#endif
}
static CYTHON_INLINE void __Pyx_ErrFetchInState(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
#if PY_VERSION_HEX >= 0x030C00A6
    PyObject* exc_value;
    exc_value = tstate->current_exception;
    tstate->current_exception = 0;
    *value = exc_value;
    *type = NULL;
    *tb = NULL;
    if (exc_value) {
        *type = (PyObject*) Py_TYPE(exc_value);
        Py_INCREF(*type);
        #if CYTHON_COMPILING_IN_CPYTHON
        *tb = ((PyBaseExceptionObject*) exc_value)->traceback;
        Py_XINCREF(*tb);
        #else
        *tb = PyException_GetTraceback(exc_value);
        #endif
    }
#else
    *type = tstate->curexc_type;
    *value = tstate->curexc_value;
    *tb = tstate->curexc_traceback;
    tstate->curexc_type = 0;
    tstate->curexc_value = 0;
    tstate->curexc_traceback = 0;
#endif
}
#endif

/* PyObjectGetAttrStr */
#if CYTHON_USE_TYPE_SLOTS
static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStr(PyObject* obj, PyObject* attr_name) {
    PyTypeObject* tp = Py_TYPE(obj);
    if (likely(tp->tp_getattro))
        return tp->tp_getattro(obj, attr_name);
#if PY_MAJOR_VERSION < 3
    if (likely(tp->tp_getattr))
        return tp->tp_getattr(obj, PyString_AS_STRING(attr_name));
#endif
    return PyObject_GetAttr(obj, attr_name);
}
#endif

/* PyObjectGetAttrStrNoError */
static void __Pyx_PyObject_GetAttrStr_ClearAttributeError(void) {
    __Pyx_PyThreadState_declare
    __Pyx_PyThreadState_assign
    if (likely(__Pyx_PyErr_ExceptionMatches(PyExc_AttributeError)))
        __Pyx_PyErr_Clear();
}
static CYTHON_INLINE PyObject* __Pyx_PyObject_GetAttrStrNoError(PyObject* obj, PyObject* attr_name) {
    PyObject *result;
#if CYTHON_COMPILING_IN_CPYTHON && CYTHON_USE_TYPE_SLOTS && PY_VERSION_HEX >= 0x030700B1
    PyTypeObject* tp = Py_TYPE(obj);
    if (likely(tp->tp_getattro == PyObject_GenericGetAttr)) {
        return _PyObject_GenericGetAttrWithDict(obj, attr_name, NULL, 1);
    }
#endif
    result = __Pyx_PyObject_GetAttrStr(obj, attr_name);
    if (unlikely(!result)) {
        __Pyx_PyObject_GetAttrStr_ClearAttributeError();
    }
    return result;
}

/* GetBuiltinName */
static PyObject *__Pyx_GetBuiltinName(PyObject *name) {
    PyObject* result = __Pyx_PyObject_GetAttrStrNoError(__pyx_b, name);
    if (unlikely(!result) && !PyErr_Occurred()) {
        PyErr_Format(PyExc_NameError,
#if PY_MAJOR_VERSION >= 3
            "name '%U' is not defined", name);
#else
            "name '%.200s' is not defined", PyString_AS_STRING(name));
#endif
    }
    return result;
}

/* GetTopmostException */
#if CYTHON_USE_EXC_INFO_STACK && CYTHON_FAST_THREAD_STATE
static _PyErr_StackItem *
__Pyx_PyErr_GetTopmostException(PyThreadState *tstate)
{
    _PyErr_StackItem *exc_info = tstate->exc_info;
    while ((exc_info->exc_value == NULL || exc_info->exc_value == Py_None) &&
           exc_info->previous_item != NULL)
    {
        exc_info = exc_info->previous_item;
    }
    return exc_info;
}
#endif

/* SaveResetException */
#if CYTHON_FAST_THREAD_STATE
static CYTHON_INLINE void __Pyx__ExceptionSave(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb) {
  #if CYTHON_USE_EXC_INFO_STACK && PY_VERSION_HEX >= 0x030B00a4
    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
    PyObject *exc_value = exc_info->exc_value;
    if (exc_value == NULL || exc_value == Py_None) {
        *value = NULL;
        *type = NULL;
        *tb = NULL;
    } else {
        *value = exc_value;
        Py_INCREF(*value);
        *type = (PyObject*) Py_TYPE(exc_value);
        Py_INCREF(*type);
        *tb = PyException_GetTraceback(exc_value);
    }
  #elif CYTHON_USE_EXC_INFO_STACK
    _PyErr_StackItem *exc_info = __Pyx_PyErr_GetTopmostException(tstate);
    *type = exc_info->exc_type;
    *value = exc_info->exc_value;
    *tb = exc_info->exc_traceback;
    Py_XINCREF(*type);
    Py_XINCREF(*value);
    Py_XINCREF(*tb);
  #else
    *type = tstate->exc_type;
    *value = tstate->exc_value;
    *tb = tstate->exc_traceback;
    Py_XINCREF(*type);
    Py_XINCREF(*value);
    Py_XINCREF(*tb);
  #endif
}
static CYTHON_INLINE void __Pyx__ExceptionReset(PyThreadState *tstate, PyObject *type, PyObject *value, PyObject *tb) {
  #if CYTHON_USE_EXC_INFO_STACK && PY_VERSION_HEX >= 0x030B00a4
    _PyErr_StackItem *exc_info = tstate->exc_info;
    PyObject *tmp_value = exc_info->exc_value;
    exc_info->exc_value = value;
    Py_XDECREF(tmp_value);
    Py_XDECREF(type);
    Py_XDECREF(tb);
  #else
    PyObject *tmp_type, *tmp_value, *tmp_tb;
    #if CYTHON_USE_EXC_INFO_STACK
    _PyErr_StackItem *exc_info = tstate->exc_info;
    tmp_type = exc_info->exc_type;
    tmp_value = exc_info->exc_value;
    tmp_tb = exc_info->exc_traceback;
    exc_info->exc_type = type;
    exc_info->exc_value = value;
    exc_info->exc_traceback = tb;
    #else
    tmp_type = tstate->exc_type;
    tmp_value = tstate->exc_value;
    tmp_tb = tstate->exc_traceback;
    tstate->exc_type = type;
    tstate->exc_value = value;
    tstate->exc_traceback = tb;
    #endif
    Py_XDECREF(tmp_type);
    Py_XDECREF(tmp_value);
    Py_XDECREF(tmp_tb);
  #endif
}
#endif

/* GetException */
#if CYTHON_FAST_THREAD_STATE
static int __Pyx__GetException(PyThreadState *tstate, PyObject **type, PyObject **value, PyObject **tb)
#else
static int __Pyx_GetException(PyObject **type, PyObject **value, PyObject **tb)
#endif
{
    PyObject *local_type = NULL, *local_value, *local_tb = NULL;
#if CYTHON_FAST_THREAD_STATE
    PyObject *tmp_type, *tmp_value, *tmp_tb;
  #if PY_VERSION_HEX >= 0x030C00A6
    local_value = tstate->current_exception;
    tstate->current_exception = 0;
    if (likely(local_value)) {
        local_type = (PyObject*) Py_TYPE(local_value);
        Py_INCREF(local_type);
        local_tb = PyException_GetTraceback(local_value);
    }
  #else
    local_type = tstate->curexc_type;
    local_value = tstate->curexc_value;
    local_tb = tstate->curexc_traceback;
    tstate->curexc_type = 0;
    tstate->curexc_value = 0;
    tstate->curexc_traceback = 0;
  #endif
#else
    PyErr_Fetch(&local_type, &local_value, &local_tb);
#endif
    PyErr_NormalizeException(&local_type, &local_value, &local_tb);
#if CYTHON_FAST_THREAD_STATE && PY_VERSION_HEX >= 0x030C00A6
    if (unlikely(tstate->current_exception))
#elif CYTHON_FAST_THREAD_STATE
    if (unlikely(tstate->curexc_type))
#else
    if (unlikely(PyErr_Occurred()))
#endif
        goto bad;
    #if PY_MAJOR_VERSION >= 3
    if (local_tb) {
        if (unlikely(PyException_SetTraceback(local_value, local_tb) < 0))
            goto bad;
    }
    #endif
    Py_XINCREF(local_tb);
    Py_XINCREF(local_type);
    Py_XINCREF(local_value);
    *type = local_type;
    *value = local_value;
    *tb = local_tb;
#if CYTHON_FAST_THREAD_STATE
    #if CYTHON_USE_EXC_INFO_STACK
    {
        _PyErr_StackItem *exc_info = tstate->exc_info;
      #if PY_VERSION_HEX >= 0x030B00a4
        tmp_value = exc_info->exc_value;
        exc_info->exc_value = local_value;
        tmp_type = NULL;
        tmp_tb = NULL;
        Py_XDECREF(local_type);
        Py_XDECREF(local_tb);
      #else
        tmp_type = exc_info->exc_type;
        tmp_value = exc_info->exc_value;
        tmp_tb = exc_info->exc_traceback;
        exc_info->exc_type = local_type;
        exc_info->exc_value = local_value;
        exc_info->exc_traceback = local_tb;
      #endif
    }
    #else
    tmp_type = tstate->exc_type;
    tmp_value = tstate->exc_value;
    tmp_tb = tstate->exc_traceback;
    tstate->exc_type = local_type;
    tstate->exc_value = local_value;
    tstate->exc_traceback = local_tb;
    #endif
    Py_XDECREF(tmp_type);
    Py_XDECREF(tmp_value);
    Py_XDECREF(tmp_tb);
#else
    PyErr_SetExcInfo(local_type, local_value, local_tb);
#endif
    return 0;
bad:
    *type = 0;
    *value = 0;
    *tb = 0;
    Py_XDECREF(local_type);
    Py_XDECREF(local_value);
    Py_XDECREF(local_tb);
    return -1;
}

/* PyObjectCall */
#if CYTHON_COMPILING_IN_CPYTHON
static CYTHON_INLINE PyObject* __Pyx_PyObject_Call(PyObject *func, PyObject *arg, PyObject *kw) {
    PyObject *result;
    ternaryfunc call = Py_TYPE(func)->tp_call;
    if (unlikely(!call))
        return PyObject_Call(func, arg, kw);
    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
        return NULL;
    result = (*call)(func, arg, kw);
    Py_LeaveRecursiveCall();
    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
        PyErr_SetString(
            PyExc_SystemError,
            "NULL result without error in PyObject_Call");
    }
    return result;
}
#endif

/* RaiseException */
#if PY_MAJOR_VERSION < 3
static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
    __Pyx_PyThreadState_declare
    CYTHON_UNUSED_VAR(cause);
    Py_XINCREF(type);
    if (!value || value == Py_None)
        value = NULL;
    else
        Py_INCREF(value);
    if (!tb || tb == Py_None)
        tb = NULL;
    else {
        Py_INCREF(tb);
        if (!PyTraceBack_Check(tb)) {
            PyErr_SetString(PyExc_TypeError,
                "raise: arg 3 must be a traceback or None");
            goto raise_error;
        }
    }
    if (PyType_Check(type)) {
#if CYTHON_COMPILING_IN_PYPY
        if (!value) {
            Py_INCREF(Py_None);
            value = Py_None;
        }
#endif
        PyErr_NormalizeException(&type, &value, &tb);
    } else {
        if (value) {
            PyErr_SetString(PyExc_TypeError,
                "instance exception may not have a separate value");
            goto raise_error;
        }
        value = type;
        type = (PyObject*) Py_TYPE(type);
        Py_INCREF(type);
        if (!PyType_IsSubtype((PyTypeObject *)type, (PyTypeObject *)PyExc_BaseException)) {
            PyErr_SetString(PyExc_TypeError,
                "raise: exception class must be a subclass of BaseException");
            goto raise_error;
        }
    }
    __Pyx_PyThreadState_assign
    __Pyx_ErrRestore(type, value, tb);
    return;
raise_error:
    Py_XDECREF(value);
    Py_XDECREF(type);
    Py_XDECREF(tb);
    return;
}
#else
static void __Pyx_Raise(PyObject *type, PyObject *value, PyObject *tb, PyObject *cause) {
    PyObject* owned_instance = NULL;
    if (tb == Py_None) {
        tb = 0;
    } else if (tb && !PyTraceBack_Check(tb)) {
        PyErr_SetString(PyExc_TypeError,
            "raise: arg 3 must be a traceback or None");
        goto bad;
    }
    if (value == Py_None)
        value = 0;
    if (PyExceptionInstance_Check(type)) {
        if (value) {
            PyErr_SetString(PyExc_TypeError,
                "instance exception may not have a separate value");
            goto bad;
        }
        value = type;
        type = (PyObject*) Py_TYPE(value);
    } else if (PyExceptionClass_Check(type)) {
        PyObject *instance_class = NULL;
        if (value && PyExceptionInstance_Check(value)) {
            instance_class = (PyObject*) Py_TYPE(value);
            if (instance_class != type) {
                int is_subclass = PyObject_IsSubclass(instance_class, type);
                if (!is_subclass) {
                    instance_class = NULL;
                } else if (unlikely(is_subclass == -1)) {
                    goto bad;
                } else {
                    type = instance_class;
                }
            }
        }
        if (!instance_class) {
            PyObject *args;
            if (!value)
                args = PyTuple_New(0);
            else if (PyTuple_Check(value)) {
                Py_INCREF(value);
                args = value;
            } else
                args = PyTuple_Pack(1, value);
            if (!args)
                goto bad;
            owned_instance = PyObject_Call(type, args, NULL);
            Py_DECREF(args);
            if (!owned_instance)
                goto bad;
            value = owned_instance;
            if (!PyExceptionInstance_Check(value)) {
                PyErr_Format(PyExc_TypeError,
                             "calling %R should have returned an instance of "
                             "BaseException, not %R",
                             type, Py_TYPE(value));
                goto bad;
            }
        }
    } else {
        PyErr_SetString(PyExc_TypeError,
            "raise: exception class must be a subclass of BaseException");
        goto bad;
    }
    if (cause) {
        PyObject *fixed_cause;
        if (cause == Py_None) {
            fixed_cause = NULL;
        } else if (PyExceptionClass_Check(cause)) {
            fixed_cause = PyObject_CallObject(cause, NULL);
            if (fixed_cause == NULL)
                goto bad;
        } else if (PyExceptionInstance_Check(cause)) {
            fixed_cause = cause;
            Py_INCREF(fixed_cause);
        } else {
            PyErr_SetString(PyExc_TypeError,
                            "exception causes must derive from "
                            "BaseException");
            goto bad;
        }
        PyException_SetCause(value, fixed_cause);
    }
    PyErr_SetObject(type, value);
    if (tb) {
      #if PY_VERSION_HEX >= 0x030C00A6
        PyException_SetTraceback(value, tb);
      #elif CYTHON_FAST_THREAD_STATE
        PyThreadState *tstate = __Pyx_PyThreadState_Current;
        PyObject* tmp_tb = tstate->curexc_traceback;
        if (tb != tmp_tb) {
            Py_INCREF(tb);
            tstate->curexc_traceback = tb;
            Py_XDECREF(tmp_tb);
        }
#else
        PyObject *tmp_type, *tmp_value, *tmp_tb;
        PyErr_Fetch(&tmp_type, &tmp_value, &tmp_tb);
        Py_INCREF(tb);
        PyErr_Restore(tmp_type, tmp_value, tb);
        Py_XDECREF(tmp_tb);
#endif
    }
bad:
    Py_XDECREF(owned_instance);
    return;
}
#endif

/* TupleAndListFromArray */
#if CYTHON_COMPILING_IN_CPYTHON
static CYTHON_INLINE void __Pyx_copy_object_array(PyObject *const *CYTHON_RESTRICT src, PyObject** CYTHON_RESTRICT dest, Py_ssize_t length) {
    PyObject *v;
    Py_ssize_t i;
    for (i = 0; i < length; i++) {
        v = dest[i] = src[i];
        Py_INCREF(v);
    }
}
static CYTHON_INLINE PyObject *
__Pyx_PyTuple_FromArray(PyObject *const *src, Py_ssize_t n)
{
    PyObject *res;
    if (n <= 0) {
        Py_INCREF(__pyx_empty_tuple);
        return __pyx_empty_tuple;
    }
    res = PyTuple_New(n);
    if (unlikely(res == NULL)) return NULL;
    __Pyx_copy_object_array(src, ((PyTupleObject*)res)->ob_item, n);
    return res;
}
static CYTHON_INLINE PyObject *
__Pyx_PyList_FromArray(PyObject *const *src, Py_ssize_t n)
{
    PyObject *res;
    if (n <= 0) {
        return PyList_New(0);
    }
    res = PyList_New(n);
    if (unlikely(res == NULL)) return NULL;
    __Pyx_copy_object_array(src, ((PyListObject*)res)->ob_item, n);
    return res;
}
#endif

/* BytesEquals */
static CYTHON_INLINE int __Pyx_PyBytes_Equals(PyObject* s1, PyObject* s2, int equals) {
#if CYTHON_COMPILING_IN_PYPY || CYTHON_COMPILING_IN_LIMITED_API
    return PyObject_RichCompareBool(s1, s2, equals);
#else
    if (s1 == s2) {
        return (equals == Py_EQ);
    } else if (PyBytes_CheckExact(s1) & PyBytes_CheckExact(s2)) {
        const char *ps1, *ps2;
        Py_ssize_t length = PyBytes_GET_SIZE(s1);
        if (length != PyBytes_GET_SIZE(s2))
            return (equals == Py_NE);
        ps1 = PyBytes_AS_STRING(s1);
        ps2 = PyBytes_AS_STRING(s2);
        if (ps1[0] != ps2[0]) {
            return (equals == Py_NE);
        } else if (length == 1) {
            return (equals == Py_EQ);
        } else {
            int result;
#if CYTHON_USE_UNICODE_INTERNALS && (PY_VERSION_HEX < 0x030B0000)
            Py_hash_t hash1, hash2;
            hash1 = ((PyBytesObject*)s1)->ob_shash;
            hash2 = ((PyBytesObject*)s2)->ob_shash;
            if (hash1 != hash2 && hash1 != -1 && hash2 != -1) {
                return (equals == Py_NE);
            }
#endif
            result = memcmp(ps1, ps2, (size_t)length);
            return (equals == Py_EQ) ? (result == 0) : (result != 0);
        }
    } else if ((s1 == Py_None) & PyBytes_CheckExact(s2)) {
        return (equals == Py_NE);
    } else if ((s2 == Py_None) & PyBytes_CheckExact(s1)) {
        return (equals == Py_NE);
    } else {
        int result;
        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
        if (!py_result)
            return -1;
        result = __Pyx_PyObject_IsTrue(py_result);
        Py_DECREF(py_result);
        return result;
    }
#endif
}

/* UnicodeEquals */
static CYTHON_INLINE int __Pyx_PyUnicode_Equals(PyObject* s1, PyObject* s2, int equals) {
#if CYTHON_COMPILING_IN_PYPY || CYTHON_COMPILING_IN_LIMITED_API
    return PyObject_RichCompareBool(s1, s2, equals);
#else
#if PY_MAJOR_VERSION < 3
    PyObject* owned_ref = NULL;
#endif
    int s1_is_unicode, s2_is_unicode;
    if (s1 == s2) {
        goto return_eq;
    }
    s1_is_unicode = PyUnicode_CheckExact(s1);
    s2_is_unicode = PyUnicode_CheckExact(s2);
#if PY_MAJOR_VERSION < 3
    if ((s1_is_unicode & (!s2_is_unicode)) && PyString_CheckExact(s2)) {
        owned_ref = PyUnicode_FromObject(s2);
        if (unlikely(!owned_ref))
            return -1;
        s2 = owned_ref;
        s2_is_unicode = 1;
    } else if ((s2_is_unicode & (!s1_is_unicode)) && PyString_CheckExact(s1)) {
        owned_ref = PyUnicode_FromObject(s1);
        if (unlikely(!owned_ref))
            return -1;
        s1 = owned_ref;
        s1_is_unicode = 1;
    } else if (((!s2_is_unicode) & (!s1_is_unicode))) {
        return __Pyx_PyBytes_Equals(s1, s2, equals);
    }
#endif
    if (s1_is_unicode & s2_is_unicode) {
        Py_ssize_t length;
        int kind;
        void *data1, *data2;
        if (unlikely(__Pyx_PyUnicode_READY(s1) < 0) || unlikely(__Pyx_PyUnicode_READY(s2) < 0))
            return -1;
        length = __Pyx_PyUnicode_GET_LENGTH(s1);
        if (length != __Pyx_PyUnicode_GET_LENGTH(s2)) {
            goto return_ne;
        }
#if CYTHON_USE_UNICODE_INTERNALS
        {
            Py_hash_t hash1, hash2;
        #if CYTHON_PEP393_ENABLED
            hash1 = ((PyASCIIObject*)s1)->hash;
            hash2 = ((PyASCIIObject*)s2)->hash;
        #else
            hash1 = ((PyUnicodeObject*)s1)->hash;
            hash2 = ((PyUnicodeObject*)s2)->hash;
        #endif
            if (hash1 != hash2 && hash1 != -1 && hash2 != -1) {
                goto return_ne;
            }
        }
#endif
        kind = __Pyx_PyUnicode_KIND(s1);
        if (kind != __Pyx_PyUnicode_KIND(s2)) {
            goto return_ne;
        }
        data1 = __Pyx_PyUnicode_DATA(s1);
        data2 = __Pyx_PyUnicode_DATA(s2);
        if (__Pyx_PyUnicode_READ(kind, data1, 0) != __Pyx_PyUnicode_READ(kind, data2, 0)) {
            goto return_ne;
        } else if (length == 1) {
            goto return_eq;
        } else {
            int result = memcmp(data1, data2, (size_t)(length * kind));
            #if PY_MAJOR_VERSION < 3
            Py_XDECREF(owned_ref);
            #endif
            return (equals == Py_EQ) ? (result == 0) : (result != 0);
        }
    } else if ((s1 == Py_None) & s2_is_unicode) {
        goto return_ne;
    } else if ((s2 == Py_None) & s1_is_unicode) {
        goto return_ne;
    } else {
        int result;
        PyObject* py_result = PyObject_RichCompare(s1, s2, equals);
        #if PY_MAJOR_VERSION < 3
        Py_XDECREF(owned_ref);
        #endif
        if (!py_result)
            return -1;
        result = __Pyx_PyObject_IsTrue(py_result);
        Py_DECREF(py_result);
        return result;
    }
return_eq:
    #if PY_MAJOR_VERSION < 3
    Py_XDECREF(owned_ref);
    #endif
    return (equals == Py_EQ);
return_ne:
    #if PY_MAJOR_VERSION < 3
    Py_XDECREF(owned_ref);
    #endif
    return (equals == Py_NE);
#endif
}

/* fastcall */
#if CYTHON_METH_FASTCALL
static CYTHON_INLINE PyObject * __Pyx_GetKwValue_FASTCALL(PyObject *kwnames, PyObject *const *kwvalues, PyObject *s)
{
    Py_ssize_t i, n = PyTuple_GET_SIZE(kwnames);
    for (i = 0; i < n; i++)
    {
        if (s == PyTuple_GET_ITEM(kwnames, i)) return kwvalues[i];
    }
    for (i = 0; i < n; i++)
    {
        int eq = __Pyx_PyUnicode_Equals(s, PyTuple_GET_ITEM(kwnames, i), Py_EQ);
        if (unlikely(eq != 0)) {
            if (unlikely(eq < 0)) return NULL;  // error
            return kwvalues[i];
        }
    }
    return NULL;  // not found (no exception set)
}
#endif

/* RaiseDoubleKeywords */
static void __Pyx_RaiseDoubleKeywordsError(
    const char* func_name,
    PyObject* kw_name)
{
    PyErr_Format(PyExc_TypeError,
        #if PY_MAJOR_VERSION >= 3
        "%s() got multiple values for keyword argument '%U'", func_name, kw_name);
        #else
        "%s() got multiple values for keyword argument '%s'", func_name,
        PyString_AsString(kw_name));
        #endif
}

/* ParseKeywords */
static int __Pyx_ParseOptionalKeywords(
    PyObject *kwds,
    PyObject *const *kwvalues,
    PyObject **argnames[],
    PyObject *kwds2,
    PyObject *values[],
    Py_ssize_t num_pos_args,
    const char* function_name)
{
    PyObject *key = 0, *value = 0;
    Py_ssize_t pos = 0;
    PyObject*** name;
    PyObject*** first_kw_arg = argnames + num_pos_args;
    int kwds_is_tuple = CYTHON_METH_FASTCALL && likely(PyTuple_Check(kwds));
    while (1) {
        Py_XDECREF(key); key = NULL;
        Py_XDECREF(value); value = NULL;
        if (kwds_is_tuple) {
            Py_ssize_t size;
#if CYTHON_ASSUME_SAFE_MACROS
            size = PyTuple_GET_SIZE(kwds);
#else
            size = PyTuple_Size(kwds);
            if (size < 0) goto bad;
#endif
            if (pos >= size) break;
#if CYTHON_AVOID_BORROWED_REFS
            key = __Pyx_PySequence_ITEM(kwds, pos);
            if (!key) goto bad;
#elif CYTHON_ASSUME_SAFE_MACROS
            key = PyTuple_GET_ITEM(kwds, pos);
#else
            key = PyTuple_GetItem(kwds, pos);
            if (!key) goto bad;
#endif
            value = kwvalues[pos];
            pos++;
        }
        else
        {
            if (!PyDict_Next(kwds, &pos, &key, &value)) break;
#if CYTHON_AVOID_BORROWED_REFS
            Py_INCREF(key);
#endif
        }
        name = first_kw_arg;
        while (*name && (**name != key)) name++;
        if (*name) {
            values[name-argnames] = value;
#if CYTHON_AVOID_BORROWED_REFS
            Py_INCREF(value); // transfer ownership of value to values
            Py_DECREF(key);
#endif
            key = NULL;
            value = NULL;
            continue;
        }
#if !CYTHON_AVOID_BORROWED_REFS
        Py_INCREF(key);
#endif
        Py_INCREF(value);
        name = first_kw_arg;
        #if PY_MAJOR_VERSION < 3
        if (likely(PyString_Check(key))) {
            while (*name) {
                if ((CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**name) == PyString_GET_SIZE(key))
                        && _PyString_Eq(**name, key)) {
                    values[name-argnames] = value;
#if CYTHON_AVOID_BORROWED_REFS
                    value = NULL;  // ownership transferred to values
#endif
                    break;
                }
                name++;
            }
            if (*name) continue;
            else {
                PyObject*** argname = argnames;
                while (argname != first_kw_arg) {
                    if ((**argname == key) || (
                            (CYTHON_COMPILING_IN_PYPY || PyString_GET_SIZE(**argname) == PyString_GET_SIZE(key))
                             && _PyString_Eq(**argname, key))) {
                        goto arg_passed_twice;
                    }
                    argname++;
                }
            }
        } else
        #endif
        if (likely(PyUnicode_Check(key))) {
            while (*name) {
                int cmp = (
                #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
                    (__Pyx_PyUnicode_GET_LENGTH(**name) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
                #endif
                    PyUnicode_Compare(**name, key)
                );
                if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
                if (cmp == 0) {
                    values[name-argnames] = value;
#if CYTHON_AVOID_BORROWED_REFS
                    value = NULL; // ownership transferred to values
#endif
                    break;
                }
                name++;
            }
            if (*name) continue;
            else {
                PyObject*** argname = argnames;
                while (argname != first_kw_arg) {
                    int cmp = (**argname == key) ? 0 :
                    #if !CYTHON_COMPILING_IN_PYPY && PY_MAJOR_VERSION >= 3
                        (__Pyx_PyUnicode_GET_LENGTH(**argname) != __Pyx_PyUnicode_GET_LENGTH(key)) ? 1 :
                    #endif
                        PyUnicode_Compare(**argname, key);
                    if (cmp < 0 && unlikely(PyErr_Occurred())) goto bad;
                    if (cmp == 0) goto arg_passed_twice;
                    argname++;
                }
            }
        } else
            goto invalid_keyword_type;
        if (kwds2) {
            if (unlikely(PyDict_SetItem(kwds2, key, value))) goto bad;
        } else {
            goto invalid_keyword;
        }
    }
    Py_XDECREF(key);
    Py_XDECREF(value);
    return 0;
arg_passed_twice:
    __Pyx_RaiseDoubleKeywordsError(function_name, key);
    goto bad;
invalid_keyword_type:
    PyErr_Format(PyExc_TypeError,
        "%.200s() keywords must be strings", function_name);
    goto bad;
invalid_keyword:
    #if PY_MAJOR_VERSION < 3
    PyErr_Format(PyExc_TypeError,
        "%.200s() got an unexpected keyword argument '%.200s'",
        function_name, PyString_AsString(key));
    #else
    PyErr_Format(PyExc_TypeError,
        "%s() got an unexpected keyword argument '%U'",
        function_name, key);
    #endif
bad:
    Py_XDECREF(key);
    Py_XDECREF(value);
    return -1;
}

/* RaiseArgTupleInvalid */
static void __Pyx_RaiseArgtupleInvalid(
    const char* func_name,
    int exact,
    Py_ssize_t num_min,
    Py_ssize_t num_max,
    Py_ssize_t num_found)
{
    Py_ssize_t num_expected;
    const char *more_or_less;
    if (num_found < num_min) {
        num_expected = num_min;
        more_or_less = "at least";
    } else {
        num_expected = num_max;
        more_or_less = "at most";
    }
    if (exact) {
        more_or_less = "exactly";
    }
    PyErr_Format(PyExc_TypeError,
                 "%.200s() takes %.8s %" CYTHON_FORMAT_SSIZE_T "d positional argument%.1s (%" CYTHON_FORMAT_SSIZE_T "d given)",
                 func_name, more_or_less, num_expected,
                 (num_expected == 1) ? "" : "s", num_found);
}

/* ArgTypeTest */
static int __Pyx__ArgTypeTest(PyObject *obj, PyTypeObject *type, const char *name, int exact)
{
    __Pyx_TypeName type_name;
    __Pyx_TypeName obj_type_name;
    if (unlikely(!type)) {
        PyErr_SetString(PyExc_SystemError, "Missing type object");
        return 0;
    }
    else if (exact) {
        #if PY_MAJOR_VERSION == 2
        if ((type == &PyBaseString_Type) && likely(__Pyx_PyBaseString_CheckExact(obj))) return 1;
        #endif
    }
    else {
        if (likely(__Pyx_TypeCheck(obj, type))) return 1;
    }
    type_name = __Pyx_PyType_GetName(type);
    obj_type_name = __Pyx_PyType_GetName(Py_TYPE(obj));
    PyErr_Format(PyExc_TypeError,
        "Argument '%.200s' has incorrect type (expected " __Pyx_FMT_TYPENAME
        ", got " __Pyx_FMT_TYPENAME ")", name, type_name, obj_type_name);
    __Pyx_DECREF_TypeName(type_name);
    __Pyx_DECREF_TypeName(obj_type_name);
    return 0;
}

/* KeywordStringCheck */
static int __Pyx_CheckKeywordStrings(
    PyObject *kw,
    const char* function_name,
    int kw_allowed)
{
    PyObject* key = 0;
    Py_ssize_t pos = 0;
#if CYTHON_COMPILING_IN_PYPY
    if (!kw_allowed && PyDict_Next(kw, &pos, &key, 0))
        goto invalid_keyword;
    return 1;
#else
    if (CYTHON_METH_FASTCALL && likely(PyTuple_Check(kw))) {
        Py_ssize_t kwsize;
#if CYTHON_ASSUME_SAFE_MACROS
        kwsize = PyTuple_GET_SIZE(kw);
#else
        kwsize = PyTuple_Size(kw);
        if (kwsize < 0) return 0;
#endif
        if (unlikely(kwsize == 0))
            return 1;
        if (!kw_allowed) {
#if CYTHON_ASSUME_SAFE_MACROS
            key = PyTuple_GET_ITEM(kw, 0);
#else
            key = PyTuple_GetItem(kw, pos);
            if (!key) return 0;
#endif
            goto invalid_keyword;
        }
#if PY_VERSION_HEX < 0x03090000
        for (pos = 0; pos < kwsize; pos++) {
#if CYTHON_ASSUME_SAFE_MACROS
            key = PyTuple_GET_ITEM(kw, pos);
#else
            key = PyTuple_GetItem(kw, pos);
            if (!key) return 0;
#endif
            if (unlikely(!PyUnicode_Check(key)))
                goto invalid_keyword_type;
        }
#endif
        return 1;
    }
    while (PyDict_Next(kw, &pos, &key, 0)) {
        #if PY_MAJOR_VERSION < 3
        if (unlikely(!PyString_Check(key)))
        #endif
            if (unlikely(!PyUnicode_Check(key)))
                goto invalid_keyword_type;
    }
    if (!kw_allowed && unlikely(key))
        goto invalid_keyword;
    return 1;
invalid_keyword_type:
    PyErr_Format(PyExc_TypeError,
        "%.200s() keywords must be strings", function_name);
    return 0;
#endif
invalid_keyword:
    #if PY_MAJOR_VERSION < 3
    PyErr_Format(PyExc_TypeError,
        "%.200s() got an unexpected keyword argument '%.200s'",
        function_name, PyString_AsString(key));
    #else
    PyErr_Format(PyExc_TypeError,
        "%s() got an unexpected keyword argument '%U'",
        function_name, key);
    #endif
    return 0;
}

/* ErrOccurredWithGIL */
static CYTHON_INLINE int __Pyx_ErrOccurredWithGIL(void) {
  int err;
  #ifdef WITH_THREAD
  PyGILState_STATE _save = PyGILState_Ensure();
  #endif
  err = !!PyErr_Occurred();
  #ifdef WITH_THREAD
  PyGILState_Release(_save);
  #endif
  return err;
}

/* PyFunctionFastCall */
#if CYTHON_FAST_PYCALL && !CYTHON_VECTORCALL
static PyObject* __Pyx_PyFunction_FastCallNoKw(PyCodeObject *co, PyObject **args, Py_ssize_t na,
                                               PyObject *globals) {
    PyFrameObject *f;
    PyThreadState *tstate = __Pyx_PyThreadState_Current;
    PyObject **fastlocals;
    Py_ssize_t i;
    PyObject *result;
    assert(globals != NULL);
    /* XXX Perhaps we should create a specialized
       PyFrame_New() that doesn't take locals, but does
       take builtins without sanity checking them.
       */
    assert(tstate != NULL);
    f = PyFrame_New(tstate, co, globals, NULL);
    if (f == NULL) {
        return NULL;
    }
    fastlocals = __Pyx_PyFrame_GetLocalsplus(f);
    for (i = 0; i < na; i++) {
        Py_INCREF(*args);
        fastlocals[i] = *args++;
    }
    result = PyEval_EvalFrameEx(f,0);
    ++tstate->recursion_depth;
    Py_DECREF(f);
    --tstate->recursion_depth;
    return result;
}
static PyObject *__Pyx_PyFunction_FastCallDict(PyObject *func, PyObject **args, Py_ssize_t nargs, PyObject *kwargs) {
    PyCodeObject *co = (PyCodeObject *)PyFunction_GET_CODE(func);
    PyObject *globals = PyFunction_GET_GLOBALS(func);
    PyObject *argdefs = PyFunction_GET_DEFAULTS(func);
    PyObject *closure;
#if PY_MAJOR_VERSION >= 3
    PyObject *kwdefs;
#endif
    PyObject *kwtuple, **k;
    PyObject **d;
    Py_ssize_t nd;
    Py_ssize_t nk;
    PyObject *result;
    assert(kwargs == NULL || PyDict_Check(kwargs));
    nk = kwargs ? PyDict_Size(kwargs) : 0;
    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object"))) {
        return NULL;
    }
    if (
#if PY_MAJOR_VERSION >= 3
            co->co_kwonlyargcount == 0 &&
#endif
            likely(kwargs == NULL || nk == 0) &&
            co->co_flags == (CO_OPTIMIZED | CO_NEWLOCALS | CO_NOFREE)) {
        if (argdefs == NULL && co->co_argcount == nargs) {
            result = __Pyx_PyFunction_FastCallNoKw(co, args, nargs, globals);
            goto done;
        }
        else if (nargs == 0 && argdefs != NULL
                 && co->co_argcount == Py_SIZE(argdefs)) {
            /* function called with no arguments, but all parameters have
               a default value: use default values as arguments .*/
            args = &PyTuple_GET_ITEM(argdefs, 0);
            result =__Pyx_PyFunction_FastCallNoKw(co, args, Py_SIZE(argdefs), globals);
            goto done;
        }
    }
    if (kwargs != NULL) {
        Py_ssize_t pos, i;
        kwtuple = PyTuple_New(2 * nk);
        if (kwtuple == NULL) {
            result = NULL;
            goto done;
        }
        k = &PyTuple_GET_ITEM(kwtuple, 0);
        pos = i = 0;
        while (PyDict_Next(kwargs, &pos, &k[i], &k[i+1])) {
            Py_INCREF(k[i]);
            Py_INCREF(k[i+1]);
            i += 2;
        }
        nk = i / 2;
    }
    else {
        kwtuple = NULL;
        k = NULL;
    }
    closure = PyFunction_GET_CLOSURE(func);
#if PY_MAJOR_VERSION >= 3
    kwdefs = PyFunction_GET_KW_DEFAULTS(func);
#endif
    if (argdefs != NULL) {
        d = &PyTuple_GET_ITEM(argdefs, 0);
        nd = Py_SIZE(argdefs);
    }
    else {
        d = NULL;
        nd = 0;
    }
#if PY_MAJOR_VERSION >= 3
    result = PyEval_EvalCodeEx((PyObject*)co, globals, (PyObject *)NULL,
                               args, (int)nargs,
                               k, (int)nk,
                               d, (int)nd, kwdefs, closure);
#else
    result = PyEval_EvalCodeEx(co, globals, (PyObject *)NULL,
                               args, (int)nargs,
                               k, (int)nk,
                               d, (int)nd, closure);
#endif
    Py_XDECREF(kwtuple);
done:
    Py_LeaveRecursiveCall();
    return result;
}
#endif

/* PyObjectCallMethO */
#if CYTHON_COMPILING_IN_CPYTHON
static CYTHON_INLINE PyObject* __Pyx_PyObject_CallMethO(PyObject *func, PyObject *arg) {
    PyObject *self, *result;
    PyCFunction cfunc;
    cfunc = __Pyx_CyOrPyCFunction_GET_FUNCTION(func);
    self = __Pyx_CyOrPyCFunction_GET_SELF(func);
    if (unlikely(Py_EnterRecursiveCall((char*)" while calling a Python object")))
        return NULL;
    result = cfunc(self, arg);
    Py_LeaveRecursiveCall();
    if (unlikely(!result) && unlikely(!PyErr_Occurred())) {
        PyErr_SetString(
            PyExc_SystemError,
            "NULL result without error in PyObject_Call");
    }
    return result;
}
#endif

/* PyObjectFastCall */
#if PY_VERSION_HEX < 0x03090000 || CYTHON_COMPILING_IN_LIMITED_API
static PyObject* __Pyx_PyObject_FastCall_fallback(PyObject *func, PyObject **args, size_t nargs, PyObject *kwargs) {
    PyObject *argstuple;
    PyObject *result = 0;
    size_t i;
    argstuple = PyTuple_New((Py_ssize_t)nargs);
    if (unlikely(!argstuple)) return NULL;
    for (i = 0; i < nargs; i++) {
        Py_INCREF(args[i]);
        if (__Pyx_PyTuple_SET_ITEM(argstuple, (Py_ssize_t)i, args[i]) < 0) goto bad;
    }
    result = __Pyx_PyObject_Call(func, argstuple, kwargs);
  bad:
    Py_DECREF(argstuple);
    return result;
}
#endif
static CYTHON_INLINE PyObject* __Pyx_PyObject_FastCallDict(PyObject *func, PyObject **args, size_t _nargs, PyObject *kwargs) {
    Py_ssize_t nargs = __Pyx_PyVectorcall_NARGS(_nargs);
#if CYTHON_COMPILING_IN_CPYTHON
    if (nargs == 0 && kwargs == NULL) {
        if (__Pyx_CyOrPyCFunction_Check(func) && likely( __Pyx_CyOrPyCFunction_GET_FLAGS(func) & METH_NOARGS))
            return __Pyx_PyObject_CallMethO(func, NULL);
    }
    else if (nargs == 1 && kwargs == NULL) {
        if (__Pyx_CyOrPyCFunction_Check(func) && likely( __Pyx_CyOrPyCFunction_GET_FLAGS(func) & METH_O))
            return __Pyx_PyObject_CallMethO(func, args[0]);
    }
#endif
    #if PY_VERSION_HEX < 0x030800B1
    #if CYTHON_FAST_PYCCALL
    if (PyCFunction_Check(func)) {
        if (kwargs) {
            return _PyCFunction_FastCallDict(func, args, nargs, kwargs);
        } else {
            return _PyCFunction_FastCallKeywords(func, args, nargs, NULL);
        }
    }
    #if PY_VERSION_HEX >= 0x030700A1
    if (!kwargs && __Pyx_IS_TYPE(func, &PyMethodDescr_Type)) {
        return _PyMethodDescr_FastCallKeywords(func, args, nargs, NULL);
    }
    #endif
    #endif
    #if CYTHON_FAST_PYCALL
    if (PyFunction_Check(func)) {
        return __Pyx_PyFunction_FastCallDict(func, args, nargs, kwargs);
    }
    #endif
    #endif
    if (kwargs == NULL) {
        #if CYTHON_VECTORCALL
        #if Py_VERSION_HEX < 0x03090000
        vectorcallfunc f = _PyVectorcall_Function(func);
        #else
        vectorcallfunc f = PyVectorcall_Function(func);
        #endif
        if (f) {
            return f(func, args, (size_t)nargs, NULL);
        }
        #elif defined(__Pyx_CyFunction_USED) && CYTHON_BACKPORT_VECTORCALL
        if (__Pyx_CyFunction_CheckExact(func)) {
            __pyx_vectorcallfunc f = __Pyx_CyFunction_func_vectorcall(func);
            if (f) return f(func, args, (size_t)nargs, NULL);
        }
        #endif
    }
    if (nargs == 0) {
        return __Pyx_PyObject_Call(func, __pyx_empty_tuple, kwargs);
    }
    #if PY_VERSION_HEX >= 0x03090000 && !CYTHON_COMPILING_IN_LIMITED_API
    return PyObject_VectorcallDict(func, args, (size_t)nargs, kwargs);
    #else
    return __Pyx_PyObject_FastCall_fallback(func, args, (size_t)nargs, kwargs);
    #endif
}

/* PyDictVersioning */
#if CYTHON_USE_DICT_VERSIONS && CYTHON_USE_TYPE_SLOTS
static CYTHON_INLINE PY_UINT64_T __Pyx_get_tp_dict_version(PyObject *obj) {
    PyObject *dict = Py_TYPE(obj)->tp_dict;
    return likely(dict) ? __PYX_GET_DICT_VERSION(dict) : 0;
}
static CYTHON_INLINE PY_UINT64_T __Pyx_get_object_dict_version(PyObject *obj) {
    PyObject **dictptr = NULL;
    Py_ssize_t offset = Py_TYPE(obj)->tp_dictoffset;
    if (offset) {
#if CYTHON_COMPILING_IN_CPYTHON
        dictptr = (likely(offset > 0)) ? (PyObject **) ((char *)obj + offset) : _PyObject_GetDictPtr(obj);
#else
        dictptr = _PyObject_GetDictPtr(obj);
#endif
    }
    return (dictptr && *dictptr) ? __PYX_GET_DICT_VERSION(*dictptr) : 0;
}
static CYTHON_INLINE int __Pyx_object_dict_version_matches(PyObject* obj, PY_UINT64_T tp_dict_version, PY_UINT64_T obj_dict_version) {
    PyObject *dict = Py_TYPE(obj)->tp_dict;
    if (unlikely(!dict) || unlikely(tp_dict_version != __PYX_GET_DICT_VERSION(dict)))
        return 0;
    return obj_dict_version == __Pyx_get_object_dict_version(obj);
}
#endif

/* GetModuleGlobalName */
#if CYTHON_USE_DICT_VERSIONS
static PyObject *__Pyx__GetModuleGlobalName(PyObject *name, PY_UINT64_T *dict_version, PyObject **dict_cached_value)
#else
static CYTHON_INLINE PyObject *__Pyx__GetModuleGlobalName(PyObject *name)
#endif
{
    PyObject *result;
#if !CYTHON_AVOID_BORROWED_REFS
#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030500A1
    result = _PyDict_GetItem_KnownHash(__pyx_d, name, ((PyASCIIObject *) name)->hash);
    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
    if (likely(result)) {
        return __Pyx_NewRef(result);
    } else if (unlikely(PyErr_Occurred())) {
        return NULL;
    }
#elif CYTHON_COMPILING_IN_LIMITED_API
    if (unlikely(!__pyx_m)) {
        return NULL;
    }
    result = PyObject_GetAttr(__pyx_m, name);
    if (likely(result)) {
        return result;
    }
#else
    result = PyDict_GetItem(__pyx_d, name);
    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
    if (likely(result)) {
        return __Pyx_NewRef(result);
    }
#endif
#else
    result = PyObject_GetItem(__pyx_d, name);
    __PYX_UPDATE_DICT_CACHE(__pyx_d, result, *dict_cached_value, *dict_version)
    if (likely(result)) {
        return __Pyx_NewRef(result);
    }
    PyErr_Clear();
#endif
    return __Pyx_GetBuiltinName(name);
}

/* PyObjectFormatAndDecref */
static CYTHON_INLINE PyObject* __Pyx_PyObject_FormatSimpleAndDecref(PyObject* s, PyObject* f) {
    if (unlikely(!s)) return NULL;
    if (likely(PyUnicode_CheckExact(s))) return s;
    #if PY_MAJOR_VERSION < 3
    if (likely(PyString_CheckExact(s))) {
        PyObject *result = PyUnicode_FromEncodedObject(s, NULL, "strict");
        Py_DECREF(s);
        return result;
    }
    #endif
    return __Pyx_PyObject_FormatAndDecref(s, f);
}
static CYTHON_INLINE PyObject* __Pyx_PyObject_FormatAndDecref(PyObject* s, PyObject* f) {
    PyObject *result = PyObject_Format(s, f);
    Py_DECREF(s);
    return result;
}

/* JoinPyUnicode */
static PyObject* __Pyx_PyUnicode_Join(PyObject* value_tuple, Py_ssize_t value_count, Py_ssize_t result_ulength,
                                      Py_UCS4 max_char) {
#if CYTHON_USE_UNICODE_INTERNALS && CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
    PyObject *result_uval;
    int result_ukind, kind_shift;
    Py_ssize_t i, char_pos;
    void *result_udata;
    CYTHON_MAYBE_UNUSED_VAR(max_char);
#if CYTHON_PEP393_ENABLED
    result_uval = PyUnicode_New(result_ulength, max_char);
    if (unlikely(!result_uval)) return NULL;
    result_ukind = (max_char <= 255) ? PyUnicode_1BYTE_KIND : (max_char <= 65535) ? PyUnicode_2BYTE_KIND : PyUnicode_4BYTE_KIND;
    kind_shift = (result_ukind == PyUnicode_4BYTE_KIND) ? 2 : result_ukind - 1;
    result_udata = PyUnicode_DATA(result_uval);
#else
    result_uval = PyUnicode_FromUnicode(NULL, result_ulength);
    if (unlikely(!result_uval)) return NULL;
    result_ukind = sizeof(Py_UNICODE);
    kind_shift = (result_ukind == 4) ? 2 : result_ukind - 1;
    result_udata = PyUnicode_AS_UNICODE(result_uval);
#endif
    assert(kind_shift == 2 || kind_shift == 1 || kind_shift == 0);
    char_pos = 0;
    for (i=0; i < value_count; i++) {
        int ukind;
        Py_ssize_t ulength;
        void *udata;
        PyObject *uval = PyTuple_GET_ITEM(value_tuple, i);
        if (unlikely(__Pyx_PyUnicode_READY(uval)))
            goto bad;
        ulength = __Pyx_PyUnicode_GET_LENGTH(uval);
        if (unlikely(!ulength))
            continue;
        if (unlikely((PY_SSIZE_T_MAX >> kind_shift) - ulength < char_pos))
            goto overflow;
        ukind = __Pyx_PyUnicode_KIND(uval);
        udata = __Pyx_PyUnicode_DATA(uval);
        if (!CYTHON_PEP393_ENABLED || ukind == result_ukind) {
            memcpy((char *)result_udata + (char_pos << kind_shift), udata, (size_t) (ulength << kind_shift));
        } else {
            #if PY_VERSION_HEX >= 0x030D0000
            if (unlikely(PyUnicode_CopyCharacters(result_uval, char_pos, uval, 0, ulength) < 0)) goto bad;
            #elif CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030300F0 || defined(_PyUnicode_FastCopyCharacters)
            _PyUnicode_FastCopyCharacters(result_uval, char_pos, uval, 0, ulength);
            #else
            Py_ssize_t j;
            for (j=0; j < ulength; j++) {
                Py_UCS4 uchar = __Pyx_PyUnicode_READ(ukind, udata, j);
                __Pyx_PyUnicode_WRITE(result_ukind, result_udata, char_pos+j, uchar);
            }
            #endif
        }
        char_pos += ulength;
    }
    return result_uval;
overflow:
    PyErr_SetString(PyExc_OverflowError, "join() result is too long for a Python string");
bad:
    Py_DECREF(result_uval);
    return NULL;
#else
    CYTHON_UNUSED_VAR(max_char);
    CYTHON_UNUSED_VAR(result_ulength);
    CYTHON_UNUSED_VAR(value_count);
    return PyUnicode_Join(__pyx_empty_unicode, value_tuple);
#endif
}

/* PyObjectCallOneArg */
static CYTHON_INLINE PyObject* __Pyx_PyObject_CallOneArg(PyObject *func, PyObject *arg) {
    PyObject *args[2] = {NULL, arg};
    return __Pyx_PyObject_FastCall(func, args+1, 1 | __Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET);
}

/* ExtTypeTest */
static CYTHON_INLINE int __Pyx_TypeTest(PyObject *obj, PyTypeObject *type) {
    __Pyx_TypeName obj_type_name;
    __Pyx_TypeName type_name;
    if (unlikely(!type)) {
        PyErr_SetString(PyExc_SystemError, "Missing type object");
        return 0;
    }
    if (likely(__Pyx_TypeCheck(obj, type)))
        return 1;
    obj_type_name = __Pyx_PyType_GetName(Py_TYPE(obj));
    type_name = __Pyx_PyType_GetName(type);
    PyErr_Format(PyExc_TypeError,
                 "Cannot convert " __Pyx_FMT_TYPENAME " to " __Pyx_FMT_TYPENAME,
                 obj_type_name, type_name);
    __Pyx_DECREF_TypeName(obj_type_name);
    __Pyx_DECREF_TypeName(type_name);
    return 0;
}

/* GetItemInt */
static PyObject *__Pyx_GetItemInt_Generic(PyObject *o, PyObject* j) {
    PyObject *r;
    if (unlikely(!j)) return NULL;
    r = PyObject_GetItem(o, j);
    Py_DECREF(j);
    return r;
}
static CYTHON_INLINE PyObject *__Pyx_GetItemInt_List_Fast(PyObject *o, Py_ssize_t i,
                                                              CYTHON_NCP_UNUSED int wraparound,
                                                              CYTHON_NCP_UNUSED int boundscheck) {
#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
    Py_ssize_t wrapped_i = i;
    if (wraparound & unlikely(i < 0)) {
        wrapped_i += PyList_GET_SIZE(o);
    }
    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyList_GET_SIZE(o)))) {
        PyObject *r = PyList_GET_ITEM(o, wrapped_i);
        Py_INCREF(r);
        return r;
    }
    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
#else
    return PySequence_GetItem(o, i);
#endif
}
static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Tuple_Fast(PyObject *o, Py_ssize_t i,
                                                              CYTHON_NCP_UNUSED int wraparound,
                                                              CYTHON_NCP_UNUSED int boundscheck) {
#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
    Py_ssize_t wrapped_i = i;
    if (wraparound & unlikely(i < 0)) {
        wrapped_i += PyTuple_GET_SIZE(o);
    }
    if ((!boundscheck) || likely(__Pyx_is_valid_index(wrapped_i, PyTuple_GET_SIZE(o)))) {
        PyObject *r = PyTuple_GET_ITEM(o, wrapped_i);
        Py_INCREF(r);
        return r;
    }
    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
#else
    return PySequence_GetItem(o, i);
#endif
}
static CYTHON_INLINE PyObject *__Pyx_GetItemInt_Fast(PyObject *o, Py_ssize_t i, int is_list,
                                                     CYTHON_NCP_UNUSED int wraparound,
                                                     CYTHON_NCP_UNUSED int boundscheck) {
#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS && CYTHON_USE_TYPE_SLOTS
    if (is_list || PyList_CheckExact(o)) {
        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyList_GET_SIZE(o);
        if ((!boundscheck) || (likely(__Pyx_is_valid_index(n, PyList_GET_SIZE(o))))) {
            PyObject *r = PyList_GET_ITEM(o, n);
            Py_INCREF(r);
            return r;
        }
    }
    else if (PyTuple_CheckExact(o)) {
        Py_ssize_t n = ((!wraparound) | likely(i >= 0)) ? i : i + PyTuple_GET_SIZE(o);
        if ((!boundscheck) || likely(__Pyx_is_valid_index(n, PyTuple_GET_SIZE(o)))) {
            PyObject *r = PyTuple_GET_ITEM(o, n);
            Py_INCREF(r);
            return r;
        }
    } else {
        PyMappingMethods *mm = Py_TYPE(o)->tp_as_mapping;
        PySequenceMethods *sm = Py_TYPE(o)->tp_as_sequence;
        if (mm && mm->mp_subscript) {
            PyObject *r, *key = PyInt_FromSsize_t(i);
            if (unlikely(!key)) return NULL;
            r = mm->mp_subscript(o, key);
            Py_DECREF(key);
            return r;
        }
        if (likely(sm && sm->sq_item)) {
            if (wraparound && unlikely(i < 0) && likely(sm->sq_length)) {
                Py_ssize_t l = sm->sq_length(o);
                if (likely(l >= 0)) {
                    i += l;
                } else {
                    if (!PyErr_ExceptionMatches(PyExc_OverflowError))
                        return NULL;
                    PyErr_Clear();
                }
            }
            return sm->sq_item(o, i);
        }
    }
#else
    if (is_list || PySequence_Check(o)) {
        return PySequence_GetItem(o, i);
    }
#endif
    return __Pyx_GetItemInt_Generic(o, PyInt_FromSsize_t(i));
}

/* WriteUnraisableException */
static void __Pyx_WriteUnraisable(const char *name, int clineno,
                                  int lineno, const char *filename,
                                  int full_traceback, int nogil) {
    PyObject *old_exc, *old_val, *old_tb;
    PyObject *ctx;
    __Pyx_PyThreadState_declare
#ifdef WITH_THREAD
    PyGILState_STATE state;
    if (nogil)
        state = PyGILState_Ensure();
    else state = (PyGILState_STATE)0;
#endif
    CYTHON_UNUSED_VAR(clineno);
    CYTHON_UNUSED_VAR(lineno);
    CYTHON_UNUSED_VAR(filename);
    CYTHON_MAYBE_UNUSED_VAR(nogil);
    __Pyx_PyThreadState_assign
    __Pyx_ErrFetch(&old_exc, &old_val, &old_tb);
    if (full_traceback) {
        Py_XINCREF(old_exc);
        Py_XINCREF(old_val);
        Py_XINCREF(old_tb);
        __Pyx_ErrRestore(old_exc, old_val, old_tb);
        PyErr_PrintEx(1);
    }
    #if PY_MAJOR_VERSION < 3
    ctx = PyString_FromString(name);
    #else
    ctx = PyUnicode_FromString(name);
    #endif
    __Pyx_ErrRestore(old_exc, old_val, old_tb);
    if (!ctx) {
        PyErr_WriteUnraisable(Py_None);
    } else {
        PyErr_WriteUnraisable(ctx);
        Py_DECREF(ctx);
    }
#ifdef WITH_THREAD
    if (nogil)
        PyGILState_Release(state);
#endif
}

/* SetItemInt */
static int __Pyx_SetItemInt_Generic(PyObject *o, PyObject *j, PyObject *v) {
    int r;
    if (unlikely(!j)) return -1;
    r = PyObject_SetItem(o, j, v);
    Py_DECREF(j);
    return r;
}
static CYTHON_INLINE int __Pyx_SetItemInt_Fast(PyObject *o, Py_ssize_t i, PyObject *v, int is_list,
                                               CYTHON_NCP_UNUSED int wraparound, CYTHON_NCP_UNUSED int boundscheck) {
#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS && CYTHON_USE_TYPE_SLOTS
    if (is_list || PyList_CheckExact(o)) {
        Py_ssize_t n = (!wraparound) ? i : ((likely(i >= 0)) ? i : i + PyList_GET_SIZE(o));
        if ((!boundscheck) || likely(__Pyx_is_valid_index(n, PyList_GET_SIZE(o)))) {
            PyObject* old = PyList_GET_ITEM(o, n);
            Py_INCREF(v);
            PyList_SET_ITEM(o, n, v);
            Py_DECREF(old);
            return 1;
        }
    } else {
        PyMappingMethods *mm = Py_TYPE(o)->tp_as_mapping;
        PySequenceMethods *sm = Py_TYPE(o)->tp_as_sequence;
        if (mm && mm->mp_ass_subscript) {
            int r;
            PyObject *key = PyInt_FromSsize_t(i);
            if (unlikely(!key)) return -1;
            r = mm->mp_ass_subscript(o, key, v);
            Py_DECREF(key);
            return r;
        }
        if (likely(sm && sm->sq_ass_item)) {
            if (wraparound && unlikely(i < 0) && likely(sm->sq_length)) {
                Py_ssize_t l = sm->sq_length(o);
                if (likely(l >= 0)) {
                    i += l;
                } else {
                    if (!PyErr_ExceptionMatches(PyExc_OverflowError))
                        return -1;
                    PyErr_Clear();
                }
            }
            return sm->sq_ass_item(o, i, v);
        }
    }
#else
#if CYTHON_COMPILING_IN_PYPY
    if (is_list || (PySequence_Check(o) && !PyDict_Check(o)))
#else
    if (is_list || PySequence_Check(o))
#endif
    {
        return PySequence_SetItem(o, i, v);
    }
#endif
    return __Pyx_SetItemInt_Generic(o, PyInt_FromSsize_t(i), v);
}

/* PyFloatBinop */
#if !CYTHON_COMPILING_IN_PYPY
static int __Pyx_PyFloat_BoolNeObjC(PyObject *op1, PyObject *op2, double floatval, int inplace, int zerodivision_check) {
    const double b = floatval;
    double a;
    CYTHON_UNUSED_VAR(inplace);
    CYTHON_UNUSED_VAR(zerodivision_check);
    if (op1 == op2) {
        return 0;
    }
    if (likely(PyFloat_CheckExact(op1))) {
#if CYTHON_COMPILING_IN_LIMITED_API
        a = __pyx_PyFloat_AsDouble(op1);
#else
        a = PyFloat_AS_DOUBLE(op1);
#endif
        
    } else
    #if PY_MAJOR_VERSION < 3
    if (likely(PyInt_CheckExact(op1))) {
        a = (double) PyInt_AS_LONG(op1);
        
    } else
    #endif
    if (likely(PyLong_CheckExact(op1))) {
        #if CYTHON_USE_PYLONG_INTERNALS
        if (__Pyx_PyLong_IsZero(op1)) {
            a = 0.0;
            
        } else if (__Pyx_PyLong_IsCompact(op1)) {
            a = (double) __Pyx_PyLong_CompactValue(op1);
        } else {
            const digit* digits = __Pyx_PyLong_Digits(op1);
            const Py_ssize_t size = __Pyx_PyLong_SignedDigitCount(op1);
            switch (size) {
                case -2:
                case 2:
                    if (8 * sizeof(unsigned long) > 2 * PyLong_SHIFT && ((8 * sizeof(unsigned long) < 53) || (1 * PyLong_SHIFT < 53))) {
                        a = (double) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
                        if ((8 * sizeof(unsigned long) < 53) || (2 * PyLong_SHIFT < 53) || (a < (double) ((PY_LONG_LONG)1 << 53))) {
                            if (size == -2)
                                a = -a;
                            break;
                        }
                    }
                    CYTHON_FALLTHROUGH;
                case -3:
                case 3:
                    if (8 * sizeof(unsigned long) > 3 * PyLong_SHIFT && ((8 * sizeof(unsigned long) < 53) || (2 * PyLong_SHIFT < 53))) {
                        a = (double) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
                        if ((8 * sizeof(unsigned long) < 53) || (3 * PyLong_SHIFT < 53) || (a < (double) ((PY_LONG_LONG)1 << 53))) {
                            if (size == -3)
                                a = -a;
                            break;
                        }
                    }
                    CYTHON_FALLTHROUGH;
                case -4:
                case 4:
                    if (8 * sizeof(unsigned long) > 4 * PyLong_SHIFT && ((8 * sizeof(unsigned long) < 53) || (3 * PyLong_SHIFT < 53))) {
                        a = (double) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0]));
                        if ((8 * sizeof(unsigned long) < 53) || (4 * PyLong_SHIFT < 53) || (a < (double) ((PY_LONG_LONG)1 << 53))) {
                            if (size == -4)
                                a = -a;
                            break;
                        }
                    }
                    CYTHON_FALLTHROUGH;
                default:
        #endif
                    return __Pyx_PyObject_IsTrueAndDecref(
                        PyFloat_Type.tp_richcompare(op2, op1, Py_NE));
        #if CYTHON_USE_PYLONG_INTERNALS
            }
        }
        #endif
    } else {
        return __Pyx_PyObject_IsTrueAndDecref(
            PyObject_RichCompare(op1, op2, Py_NE));
    }
        if (a != b) {
            return 1;
        } else {
            return 0;
        }
}
#endif

/* PyIntCompare */
static CYTHON_INLINE int __Pyx_PyInt_BoolNeObjC(PyObject *op1, PyObject *op2, long intval, long inplace) {
    CYTHON_MAYBE_UNUSED_VAR(intval);
    CYTHON_UNUSED_VAR(inplace);
    if (op1 == op2) {
        return 0;
    }
    #if PY_MAJOR_VERSION < 3
    if (likely(PyInt_CheckExact(op1))) {
        const long b = intval;
        long a = PyInt_AS_LONG(op1);
        return (a != b);
    }
    #endif
    #if CYTHON_USE_PYLONG_INTERNALS
    if (likely(PyLong_CheckExact(op1))) {
        int unequal;
        unsigned long uintval;
        Py_ssize_t size = __Pyx_PyLong_DigitCount(op1);
        const digit* digits = __Pyx_PyLong_Digits(op1);
        if (intval == 0) {
            return (__Pyx_PyLong_IsZero(op1) != 1);
        } else if (intval < 0) {
            if (__Pyx_PyLong_IsNonNeg(op1))
                return 1;
            intval = -intval;
        } else {
            if (__Pyx_PyLong_IsNeg(op1))
                return 1;
        }
        uintval = (unsigned long) intval;
#if PyLong_SHIFT * 4 < SIZEOF_LONG*8
        if (uintval >> (PyLong_SHIFT * 4)) {
            unequal = (size != 5) || (digits[0] != (uintval & (unsigned long) PyLong_MASK))
                 | (digits[1] != ((uintval >> (1 * PyLong_SHIFT)) & (unsigned long) PyLong_MASK)) | (digits[2] != ((uintval >> (2 * PyLong_SHIFT)) & (unsigned long) PyLong_MASK)) | (digits[3] != ((uintval >> (3 * PyLong_SHIFT)) & (unsigned long) PyLong_MASK)) | (digits[4] != ((uintval >> (4 * PyLong_SHIFT)) & (unsigned long) PyLong_MASK));
        } else
#endif
#if PyLong_SHIFT * 3 < SIZEOF_LONG*8
        if (uintval >> (PyLong_SHIFT * 3)) {
            unequal = (size != 4) || (digits[0] != (uintval & (unsigned long) PyLong_MASK))
                 | (digits[1] != ((uintval >> (1 * PyLong_SHIFT)) & (unsigned long) PyLong_MASK)) | (digits[2] != ((uintval >> (2 * PyLong_SHIFT)) & (unsigned long) PyLong_MASK)) | (digits[3] != ((uintval >> (3 * PyLong_SHIFT)) & (unsigned long) PyLong_MASK));
        } else
#endif
#if PyLong_SHIFT * 2 < SIZEOF_LONG*8
        if (uintval >> (PyLong_SHIFT * 2)) {
            unequal = (size != 3) || (digits[0] != (uintval & (unsigned long) PyLong_MASK))
                 | (digits[1] != ((uintval >> (1 * PyLong_SHIFT)) & (unsigned long) PyLong_MASK)) | (digits[2] != ((uintval >> (2 * PyLong_SHIFT)) & (unsigned long) PyLong_MASK));
        } else
#endif
#if PyLong_SHIFT * 1 < SIZEOF_LONG*8
        if (uintval >> (PyLong_SHIFT * 1)) {
            unequal = (size != 2) || (digits[0] != (uintval & (unsigned long) PyLong_MASK))
                 | (digits[1] != ((uintval >> (1 * PyLong_SHIFT)) & (unsigned long) PyLong_MASK));
        } else
#endif
            unequal = (size != 1) || (((unsigned long) digits[0]) != (uintval & (unsigned long) PyLong_MASK));
        return (unequal != 0);
    }
    #endif
    if (PyFloat_CheckExact(op1)) {
        const long b = intval;
#if CYTHON_COMPILING_IN_LIMITED_API
        double a = __pyx_PyFloat_AsDouble(op1);
#else
        double a = PyFloat_AS_DOUBLE(op1);
#endif
        return ((double)a != (double)b);
    }
    return __Pyx_PyObject_IsTrueAndDecref(
        PyObject_RichCompare(op1, op2, Py_NE));
}

/* FixUpExtensionType */
#if CYTHON_USE_TYPE_SPECS
static int __Pyx_fix_up_extension_type_from_spec(PyType_Spec *spec, PyTypeObject *type) {
#if PY_VERSION_HEX > 0x030900B1 || CYTHON_COMPILING_IN_LIMITED_API
    CYTHON_UNUSED_VAR(spec);
    CYTHON_UNUSED_VAR(type);
#else
    const PyType_Slot *slot = spec->slots;
    while (slot && slot->slot && slot->slot != Py_tp_members)
        slot++;
    if (slot && slot->slot == Py_tp_members) {
        int changed = 0;
#if !(PY_VERSION_HEX <= 0x030900b1 && CYTHON_COMPILING_IN_CPYTHON)
        const
#endif
            PyMemberDef *memb = (PyMemberDef*) slot->pfunc;
        while (memb && memb->name) {
            if (memb->name[0] == '_' && memb->name[1] == '_') {
#if PY_VERSION_HEX < 0x030900b1
                if (strcmp(memb->name, "__weaklistoffset__") == 0) {
                    assert(memb->type == T_PYSSIZET);
                    assert(memb->flags == READONLY);
                    type->tp_weaklistoffset = memb->offset;
                    changed = 1;
                }
                else if (strcmp(memb->name, "__dictoffset__") == 0) {
                    assert(memb->type == T_PYSSIZET);
                    assert(memb->flags == READONLY);
                    type->tp_dictoffset = memb->offset;
                    changed = 1;
                }
#if CYTHON_METH_FASTCALL
                else if (strcmp(memb->name, "__vectorcalloffset__") == 0) {
                    assert(memb->type == T_PYSSIZET);
                    assert(memb->flags == READONLY);
#if PY_VERSION_HEX >= 0x030800b4
                    type->tp_vectorcall_offset = memb->offset;
#else
                    type->tp_print = (printfunc) memb->offset;
#endif
                    changed = 1;
                }
#endif
#else
                if ((0));
#endif
#if PY_VERSION_HEX <= 0x030900b1 && CYTHON_COMPILING_IN_CPYTHON
                else if (strcmp(memb->name, "__module__") == 0) {
                    PyObject *descr;
                    assert(memb->type == T_OBJECT);
                    assert(memb->flags == 0 || memb->flags == READONLY);
                    descr = PyDescr_NewMember(type, memb);
                    if (unlikely(!descr))
                        return -1;
                    if (unlikely(PyDict_SetItem(type->tp_dict, PyDescr_NAME(descr), descr) < 0)) {
                        Py_DECREF(descr);
                        return -1;
                    }
                    Py_DECREF(descr);
                    changed = 1;
                }
#endif
            }
            memb++;
        }
        if (changed)
            PyType_Modified(type);
    }
#endif
    return 0;
}
#endif

/* PyObjectCallNoArg */
static CYTHON_INLINE PyObject* __Pyx_PyObject_CallNoArg(PyObject *func) {
    PyObject *arg[2] = {NULL, NULL};
    return __Pyx_PyObject_FastCall(func, arg + 1, 0 | __Pyx_PY_VECTORCALL_ARGUMENTS_OFFSET);
}

/* PyObjectGetMethod */
static int __Pyx_PyObject_GetMethod(PyObject *obj, PyObject *name, PyObject **method) {
    PyObject *attr;
#if CYTHON_UNPACK_METHODS && CYTHON_COMPILING_IN_CPYTHON && CYTHON_USE_PYTYPE_LOOKUP
    __Pyx_TypeName type_name;
    PyTypeObject *tp = Py_TYPE(obj);
    PyObject *descr;
    descrgetfunc f = NULL;
    PyObject **dictptr, *dict;
    int meth_found = 0;
    assert (*method == NULL);
    if (unlikely(tp->tp_getattro != PyObject_GenericGetAttr)) {
        attr = __Pyx_PyObject_GetAttrStr(obj, name);
        goto try_unpack;
    }
    if (unlikely(tp->tp_dict == NULL) && unlikely(PyType_Ready(tp) < 0)) {
        return 0;
    }
    descr = _PyType_Lookup(tp, name);
    if (likely(descr != NULL)) {
        Py_INCREF(descr);
#if defined(Py_TPFLAGS_METHOD_DESCRIPTOR) && Py_TPFLAGS_METHOD_DESCRIPTOR
        if (__Pyx_PyType_HasFeature(Py_TYPE(descr), Py_TPFLAGS_METHOD_DESCRIPTOR))
#elif PY_MAJOR_VERSION >= 3
        #ifdef __Pyx_CyFunction_USED
        if (likely(PyFunction_Check(descr) || __Pyx_IS_TYPE(descr, &PyMethodDescr_Type) || __Pyx_CyFunction_Check(descr)))
        #else
        if (likely(PyFunction_Check(descr) || __Pyx_IS_TYPE(descr, &PyMethodDescr_Type)))
        #endif
#else
        #ifdef __Pyx_CyFunction_USED
        if (likely(PyFunction_Check(descr) || __Pyx_CyFunction_Check(descr)))
        #else
        if (likely(PyFunction_Check(descr)))
        #endif
#endif
        {
            meth_found = 1;
        } else {
            f = Py_TYPE(descr)->tp_descr_get;
            if (f != NULL && PyDescr_IsData(descr)) {
                attr = f(descr, obj, (PyObject *)Py_TYPE(obj));
                Py_DECREF(descr);
                goto try_unpack;
            }
        }
    }
    dictptr = _PyObject_GetDictPtr(obj);
    if (dictptr != NULL && (dict = *dictptr) != NULL) {
        Py_INCREF(dict);
        attr = __Pyx_PyDict_GetItemStr(dict, name);
        if (attr != NULL) {
            Py_INCREF(attr);
            Py_DECREF(dict);
            Py_XDECREF(descr);
            goto try_unpack;
        }
        Py_DECREF(dict);
    }
    if (meth_found) {
        *method = descr;
        return 1;
    }
    if (f != NULL) {
        attr = f(descr, obj, (PyObject *)Py_TYPE(obj));
        Py_DECREF(descr);
        goto try_unpack;
    }
    if (likely(descr != NULL)) {
        *method = descr;
        return 0;
    }
    type_name = __Pyx_PyType_GetName(tp);
    PyErr_Format(PyExc_AttributeError,
#if PY_MAJOR_VERSION >= 3
                 "'" __Pyx_FMT_TYPENAME "' object has no attribute '%U'",
                 type_name, name);
#else
                 "'" __Pyx_FMT_TYPENAME "' object has no attribute '%.400s'",
                 type_name, PyString_AS_STRING(name));
#endif
    __Pyx_DECREF_TypeName(type_name);
    return 0;
#else
    attr = __Pyx_PyObject_GetAttrStr(obj, name);
    goto try_unpack;
#endif
try_unpack:
#if CYTHON_UNPACK_METHODS
    if (likely(attr) && PyMethod_Check(attr) && likely(PyMethod_GET_SELF(attr) == obj)) {
        PyObject *function = PyMethod_GET_FUNCTION(attr);
        Py_INCREF(function);
        Py_DECREF(attr);
        *method = function;
        return 1;
    }
#endif
    *method = attr;
    return 0;
}

/* PyObjectCallMethod0 */
static PyObject* __Pyx_PyObject_CallMethod0(PyObject* obj, PyObject* method_name) {
    PyObject *method = NULL, *result = NULL;
    int is_method = __Pyx_PyObject_GetMethod(obj, method_name, &method);
    if (likely(is_method)) {
        result = __Pyx_PyObject_CallOneArg(method, obj);
        Py_DECREF(method);
        return result;
    }
    if (unlikely(!method)) goto bad;
    result = __Pyx_PyObject_CallNoArg(method);
    Py_DECREF(method);
bad:
    return result;
}

/* ValidateBasesTuple */
#if CYTHON_COMPILING_IN_CPYTHON || CYTHON_COMPILING_IN_LIMITED_API || CYTHON_USE_TYPE_SPECS
static int __Pyx_validate_bases_tuple(const char *type_name, Py_ssize_t dictoffset, PyObject *bases) {
    Py_ssize_t i, n;
#if CYTHON_ASSUME_SAFE_MACROS
    n = PyTuple_GET_SIZE(bases);
#else
    n = PyTuple_Size(bases);
    if (n < 0) return -1;
#endif
    for (i = 1; i < n; i++)
    {
#if CYTHON_AVOID_BORROWED_REFS
        PyObject *b0 = PySequence_GetItem(bases, i);
        if (!b0) return -1;
#elif CYTHON_ASSUME_SAFE_MACROS
        PyObject *b0 = PyTuple_GET_ITEM(bases, i);
#else
        PyObject *b0 = PyTuple_GetItem(bases, i);
        if (!b0) return -1;
#endif
        PyTypeObject *b;
#if PY_MAJOR_VERSION < 3
        if (PyClass_Check(b0))
        {
            PyErr_Format(PyExc_TypeError, "base class '%.200s' is an old-style class",
                         PyString_AS_STRING(((PyClassObject*)b0)->cl_name));
#if CYTHON_AVOID_BORROWED_REFS
            Py_DECREF(b0);
#endif
            return -1;
        }
#endif
        b = (PyTypeObject*) b0;
        if (!__Pyx_PyType_HasFeature(b, Py_TPFLAGS_HEAPTYPE))
        {
            __Pyx_TypeName b_name = __Pyx_PyType_GetName(b);
            PyErr_Format(PyExc_TypeError,
                "base class '" __Pyx_FMT_TYPENAME "' is not a heap type", b_name);
            __Pyx_DECREF_TypeName(b_name);
#if CYTHON_AVOID_BORROWED_REFS
            Py_DECREF(b0);
#endif
            return -1;
        }
#if !CYTHON_USE_TYPE_SLOTS
        if (dictoffset == 0) {
            PyErr_Format(PyExc_TypeError,
                "extension type '%s.200s': "
                "unable to validate whether bases have a __dict__ "
                "when CYTHON_USE_TYPE_SLOTS is off "
                "(likely because you are building in the limited API). "
                "Therefore, all extension types with multiple bases "
                "must add 'cdef dict __dict__' in this compilation mode",
                type_name);
#if CYTHON_AVOID_BORROWED_REFS
            Py_DECREF(b0);
#endif
            return -1;
        }
#else
        if (dictoffset == 0 && b->tp_dictoffset)
        {
            __Pyx_TypeName b_name = __Pyx_PyType_GetName(b);
            PyErr_Format(PyExc_TypeError,
                "extension type '%.200s' has no __dict__ slot, "
                "but base type '" __Pyx_FMT_TYPENAME "' has: "
                "either add 'cdef dict __dict__' to the extension type "
                "or add '__slots__ = [...]' to the base type",
                type_name, b_name);
            __Pyx_DECREF_TypeName(b_name);
#if CYTHON_AVOID_BORROWED_REFS
            Py_DECREF(b0);
#endif
            return -1;
        }
#endif
#if CYTHON_AVOID_BORROWED_REFS
        Py_DECREF(b0);
#endif
    }
    return 0;
}
#endif

/* PyType_Ready */
static int __Pyx_PyType_Ready(PyTypeObject *t) {
#if CYTHON_USE_TYPE_SPECS || !(CYTHON_COMPILING_IN_CPYTHON || CYTHON_COMPILING_IN_LIMITED_API) || defined(PYSTON_MAJOR_VERSION)
    (void)__Pyx_PyObject_CallMethod0;
#if CYTHON_USE_TYPE_SPECS
    (void)__Pyx_validate_bases_tuple;
#endif
    return PyType_Ready(t);
#else
    int r;
    PyObject *bases = __Pyx_PyType_GetSlot(t, tp_bases, PyObject*);
    if (bases && unlikely(__Pyx_validate_bases_tuple(t->tp_name, t->tp_dictoffset, bases) == -1))
        return -1;
#if PY_VERSION_HEX >= 0x03050000 && !defined(PYSTON_MAJOR_VERSION)
    {
        int gc_was_enabled;
    #if PY_VERSION_HEX >= 0x030A00b1
        gc_was_enabled = PyGC_Disable();
        (void)__Pyx_PyObject_CallMethod0;
    #else
        PyObject *ret, *py_status;
        PyObject *gc = NULL;
        #if PY_VERSION_HEX >= 0x030700a1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM+0 >= 0x07030400)
        gc = PyImport_GetModule(__pyx_kp_u_gc);
        #endif
        if (unlikely(!gc)) gc = PyImport_Import(__pyx_kp_u_gc);
        if (unlikely(!gc)) return -1;
        py_status = __Pyx_PyObject_CallMethod0(gc, __pyx_kp_u_isenabled);
        if (unlikely(!py_status)) {
            Py_DECREF(gc);
            return -1;
        }
        gc_was_enabled = __Pyx_PyObject_IsTrue(py_status);
        Py_DECREF(py_status);
        if (gc_was_enabled > 0) {
            ret = __Pyx_PyObject_CallMethod0(gc, __pyx_kp_u_disable);
            if (unlikely(!ret)) {
                Py_DECREF(gc);
                return -1;
            }
            Py_DECREF(ret);
        } else if (unlikely(gc_was_enabled == -1)) {
            Py_DECREF(gc);
            return -1;
        }
    #endif
        t->tp_flags |= Py_TPFLAGS_HEAPTYPE;
#if PY_VERSION_HEX >= 0x030A0000
        t->tp_flags |= Py_TPFLAGS_IMMUTABLETYPE;
#endif
#else
        (void)__Pyx_PyObject_CallMethod0;
#endif
    r = PyType_Ready(t);
#if PY_VERSION_HEX >= 0x03050000 && !defined(PYSTON_MAJOR_VERSION)
        t->tp_flags &= ~Py_TPFLAGS_HEAPTYPE;
    #if PY_VERSION_HEX >= 0x030A00b1
        if (gc_was_enabled)
            PyGC_Enable();
    #else
        if (gc_was_enabled) {
            PyObject *tp, *v, *tb;
            PyErr_Fetch(&tp, &v, &tb);
            ret = __Pyx_PyObject_CallMethod0(gc, __pyx_kp_u_enable);
            if (likely(ret || r == -1)) {
                Py_XDECREF(ret);
                PyErr_Restore(tp, v, tb);
            } else {
                Py_XDECREF(tp);
                Py_XDECREF(v);
                Py_XDECREF(tb);
                r = -1;
            }
        }
        Py_DECREF(gc);
    #endif
    }
#endif
    return r;
#endif
}

/* PyObject_GenericGetAttrNoDict */
#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
static PyObject *__Pyx_RaiseGenericGetAttributeError(PyTypeObject *tp, PyObject *attr_name) {
    __Pyx_TypeName type_name = __Pyx_PyType_GetName(tp);
    PyErr_Format(PyExc_AttributeError,
#if PY_MAJOR_VERSION >= 3
                 "'" __Pyx_FMT_TYPENAME "' object has no attribute '%U'",
                 type_name, attr_name);
#else
                 "'" __Pyx_FMT_TYPENAME "' object has no attribute '%.400s'",
                 type_name, PyString_AS_STRING(attr_name));
#endif
    __Pyx_DECREF_TypeName(type_name);
    return NULL;
}
static CYTHON_INLINE PyObject* __Pyx_PyObject_GenericGetAttrNoDict(PyObject* obj, PyObject* attr_name) {
    PyObject *descr;
    PyTypeObject *tp = Py_TYPE(obj);
    if (unlikely(!PyString_Check(attr_name))) {
        return PyObject_GenericGetAttr(obj, attr_name);
    }
    assert(!tp->tp_dictoffset);
    descr = _PyType_Lookup(tp, attr_name);
    if (unlikely(!descr)) {
        return __Pyx_RaiseGenericGetAttributeError(tp, attr_name);
    }
    Py_INCREF(descr);
    #if PY_MAJOR_VERSION < 3
    if (likely(PyType_HasFeature(Py_TYPE(descr), Py_TPFLAGS_HAVE_CLASS)))
    #endif
    {
        descrgetfunc f = Py_TYPE(descr)->tp_descr_get;
        if (unlikely(f)) {
            PyObject *res = f(descr, obj, (PyObject *)tp);
            Py_DECREF(descr);
            return res;
        }
    }
    return descr;
}
#endif

/* PyObject_GenericGetAttr */
#if CYTHON_USE_TYPE_SLOTS && CYTHON_USE_PYTYPE_LOOKUP && PY_VERSION_HEX < 0x03070000
static PyObject* __Pyx_PyObject_GenericGetAttr(PyObject* obj, PyObject* attr_name) {
    if (unlikely(Py_TYPE(obj)->tp_dictoffset)) {
        return PyObject_GenericGetAttr(obj, attr_name);
    }
    return __Pyx_PyObject_GenericGetAttrNoDict(obj, attr_name);
}
#endif

/* SetVTable */
static int __Pyx_SetVtable(PyTypeObject *type, void *vtable) {
    PyObject *ob = PyCapsule_New(vtable, 0, 0);
    if (unlikely(!ob))
        goto bad;
#if CYTHON_COMPILING_IN_LIMITED_API
    if (unlikely(PyObject_SetAttr((PyObject *) type, __pyx_n_s_pyx_vtable, ob) < 0))
#else
    if (unlikely(PyDict_SetItem(type->tp_dict, __pyx_n_s_pyx_vtable, ob) < 0))
#endif
        goto bad;
    Py_DECREF(ob);
    return 0;
bad:
    Py_XDECREF(ob);
    return -1;
}

/* GetVTable */
static void* __Pyx_GetVtable(PyTypeObject *type) {
    void* ptr;
#if CYTHON_COMPILING_IN_LIMITED_API
    PyObject *ob = PyObject_GetAttr((PyObject *)type, __pyx_n_s_pyx_vtable);
#else
    PyObject *ob = PyObject_GetItem(type->tp_dict, __pyx_n_s_pyx_vtable);
#endif
    if (!ob)
        goto bad;
    ptr = PyCapsule_GetPointer(ob, 0);
    if (!ptr && !PyErr_Occurred())
        PyErr_SetString(PyExc_RuntimeError, "invalid vtable found for imported type");
    Py_DECREF(ob);
    return ptr;
bad:
    Py_XDECREF(ob);
    return NULL;
}

/* MergeVTables */
#if !CYTHON_COMPILING_IN_LIMITED_API
static int __Pyx_MergeVtables(PyTypeObject *type) {
    int i;
    void** base_vtables;
    __Pyx_TypeName tp_base_name;
    __Pyx_TypeName base_name;
    void* unknown = (void*)-1;
    PyObject* bases = type->tp_bases;
    int base_depth = 0;
    {
        PyTypeObject* base = type->tp_base;
        while (base) {
            base_depth += 1;
            base = base->tp_base;
        }
    }
    base_vtables = (void**) malloc(sizeof(void*) * (size_t)(base_depth + 1));
    base_vtables[0] = unknown;
    for (i = 1; i < PyTuple_GET_SIZE(bases); i++) {
        void* base_vtable = __Pyx_GetVtable(((PyTypeObject*)PyTuple_GET_ITEM(bases, i)));
        if (base_vtable != NULL) {
            int j;
            PyTypeObject* base = type->tp_base;
            for (j = 0; j < base_depth; j++) {
                if (base_vtables[j] == unknown) {
                    base_vtables[j] = __Pyx_GetVtable(base);
                    base_vtables[j + 1] = unknown;
                }
                if (base_vtables[j] == base_vtable) {
                    break;
                } else if (base_vtables[j] == NULL) {
                    goto bad;
                }
                base = base->tp_base;
            }
        }
    }
    PyErr_Clear();
    free(base_vtables);
    return 0;
bad:
    tp_base_name = __Pyx_PyType_GetName(type->tp_base);
    base_name = __Pyx_PyType_GetName((PyTypeObject*)PyTuple_GET_ITEM(bases, i));
    PyErr_Format(PyExc_TypeError,
        "multiple bases have vtable conflict: '" __Pyx_FMT_TYPENAME "' and '" __Pyx_FMT_TYPENAME "'", tp_base_name, base_name);
    __Pyx_DECREF_TypeName(tp_base_name);
    __Pyx_DECREF_TypeName(base_name);
    free(base_vtables);
    return -1;
}
#endif

/* SetupReduce */
#if !CYTHON_COMPILING_IN_LIMITED_API
static int __Pyx_setup_reduce_is_named(PyObject* meth, PyObject* name) {
  int ret;
  PyObject *name_attr;
  name_attr = __Pyx_PyObject_GetAttrStrNoError(meth, __pyx_n_s_name);
  if (likely(name_attr)) {
      ret = PyObject_RichCompareBool(name_attr, name, Py_EQ);
  } else {
      ret = -1;
  }
  if (unlikely(ret < 0)) {
      PyErr_Clear();
      ret = 0;
  }
  Py_XDECREF(name_attr);
  return ret;
}
static int __Pyx_setup_reduce(PyObject* type_obj) {
    int ret = 0;
    PyObject *object_reduce = NULL;
    PyObject *object_getstate = NULL;
    PyObject *object_reduce_ex = NULL;
    PyObject *reduce = NULL;
    PyObject *reduce_ex = NULL;
    PyObject *reduce_cython = NULL;
    PyObject *setstate = NULL;
    PyObject *setstate_cython = NULL;
    PyObject *getstate = NULL;
#if CYTHON_USE_PYTYPE_LOOKUP
    getstate = _PyType_Lookup((PyTypeObject*)type_obj, __pyx_n_s_getstate);
#else
    getstate = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_getstate);
    if (!getstate && PyErr_Occurred()) {
        goto __PYX_BAD;
    }
#endif
    if (getstate) {
#if CYTHON_USE_PYTYPE_LOOKUP
        object_getstate = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_getstate);
#else
        object_getstate = __Pyx_PyObject_GetAttrStrNoError((PyObject*)&PyBaseObject_Type, __pyx_n_s_getstate);
        if (!object_getstate && PyErr_Occurred()) {
            goto __PYX_BAD;
        }
#endif
        if (object_getstate != getstate) {
            goto __PYX_GOOD;
        }
    }
#if CYTHON_USE_PYTYPE_LOOKUP
    object_reduce_ex = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
#else
    object_reduce_ex = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce_ex); if (!object_reduce_ex) goto __PYX_BAD;
#endif
    reduce_ex = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce_ex); if (unlikely(!reduce_ex)) goto __PYX_BAD;
    if (reduce_ex == object_reduce_ex) {
#if CYTHON_USE_PYTYPE_LOOKUP
        object_reduce = _PyType_Lookup(&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
#else
        object_reduce = __Pyx_PyObject_GetAttrStr((PyObject*)&PyBaseObject_Type, __pyx_n_s_reduce); if (!object_reduce) goto __PYX_BAD;
#endif
        reduce = __Pyx_PyObject_GetAttrStr(type_obj, __pyx_n_s_reduce); if (unlikely(!reduce)) goto __PYX_BAD;
        if (reduce == object_reduce || __Pyx_setup_reduce_is_named(reduce, __pyx_n_s_reduce_cython)) {
            reduce_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_reduce_cython);
            if (likely(reduce_cython)) {
                ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce, reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
                ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_reduce_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
            } else if (reduce == object_reduce || PyErr_Occurred()) {
                goto __PYX_BAD;
            }
            setstate = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_setstate);
            if (!setstate) PyErr_Clear();
            if (!setstate || __Pyx_setup_reduce_is_named(setstate, __pyx_n_s_setstate_cython)) {
                setstate_cython = __Pyx_PyObject_GetAttrStrNoError(type_obj, __pyx_n_s_setstate_cython);
                if (likely(setstate_cython)) {
                    ret = PyDict_SetItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate, setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
                    ret = PyDict_DelItem(((PyTypeObject*)type_obj)->tp_dict, __pyx_n_s_setstate_cython); if (unlikely(ret < 0)) goto __PYX_BAD;
                } else if (!setstate || PyErr_Occurred()) {
                    goto __PYX_BAD;
                }
            }
            PyType_Modified((PyTypeObject*)type_obj);
        }
    }
    goto __PYX_GOOD;
__PYX_BAD:
    if (!PyErr_Occurred()) {
        __Pyx_TypeName type_obj_name =
            __Pyx_PyType_GetName((PyTypeObject*)type_obj);
        PyErr_Format(PyExc_RuntimeError,
            "Unable to initialize pickling for " __Pyx_FMT_TYPENAME, type_obj_name);
        __Pyx_DECREF_TypeName(type_obj_name);
    }
    ret = -1;
__PYX_GOOD:
#if !CYTHON_USE_PYTYPE_LOOKUP
    Py_XDECREF(object_reduce);
    Py_XDECREF(object_reduce_ex);
    Py_XDECREF(object_getstate);
    Py_XDECREF(getstate);
#endif
    Py_XDECREF(reduce);
    Py_XDECREF(reduce_ex);
    Py_XDECREF(reduce_cython);
    Py_XDECREF(setstate);
    Py_XDECREF(setstate_cython);
    return ret;
}
#endif

/* TypeImport */
#ifndef __PYX_HAVE_RT_ImportType_3_0_3
#define __PYX_HAVE_RT_ImportType_3_0_3
static PyTypeObject *__Pyx_ImportType_3_0_3(PyObject *module, const char *module_name, const char *class_name,
    size_t size, size_t alignment, enum __Pyx_ImportType_CheckSize_3_0_3 check_size)
{
    PyObject *result = 0;
    char warning[200];
    Py_ssize_t basicsize;
    Py_ssize_t itemsize;
#if CYTHON_COMPILING_IN_LIMITED_API
    PyObject *py_basicsize;
    PyObject *py_itemsize;
#endif
    result = PyObject_GetAttrString(module, class_name);
    if (!result)
        goto bad;
    if (!PyType_Check(result)) {
        PyErr_Format(PyExc_TypeError,
            "%.200s.%.200s is not a type object",
            module_name, class_name);
        goto bad;
    }
#if !CYTHON_COMPILING_IN_LIMITED_API
    basicsize = ((PyTypeObject *)result)->tp_basicsize;
    itemsize = ((PyTypeObject *)result)->tp_itemsize;
#else
    py_basicsize = PyObject_GetAttrString(result, "__basicsize__");
    if (!py_basicsize)
        goto bad;
    basicsize = PyLong_AsSsize_t(py_basicsize);
    Py_DECREF(py_basicsize);
    py_basicsize = 0;
    if (basicsize == (Py_ssize_t)-1 && PyErr_Occurred())
        goto bad;
    py_itemsize = PyObject_GetAttrString(result, "__itemsize__");
    if (!py_itemsize)
        goto bad;
    itemsize = PyLong_AsSsize_t(py_itemsize);
    Py_DECREF(py_itemsize);
    py_itemsize = 0;
    if (itemsize == (Py_ssize_t)-1 && PyErr_Occurred())
        goto bad;
#endif
    if (itemsize) {
        if (size % alignment) {
            alignment = size % alignment;
        }
        if (itemsize < (Py_ssize_t)alignment)
            itemsize = (Py_ssize_t)alignment;
    }
    if ((size_t)(basicsize + itemsize) < size) {
        PyErr_Format(PyExc_ValueError,
            "%.200s.%.200s size changed, may indicate binary incompatibility. "
            "Expected %zd from C header, got %zd from PyObject",
            module_name, class_name, size, basicsize+itemsize);
        goto bad;
    }
    if (check_size == __Pyx_ImportType_CheckSize_Error_3_0_3 &&
            ((size_t)basicsize > size || (size_t)(basicsize + itemsize) < size)) {
        PyErr_Format(PyExc_ValueError,
            "%.200s.%.200s size changed, may indicate binary incompatibility. "
            "Expected %zd from C header, got %zd-%zd from PyObject",
            module_name, class_name, size, basicsize, basicsize+itemsize);
        goto bad;
    }
    else if (check_size == __Pyx_ImportType_CheckSize_Warn_3_0_3 && (size_t)basicsize > size) {
        PyOS_snprintf(warning, sizeof(warning),
            "%s.%s size changed, may indicate binary incompatibility. "
            "Expected %zd from C header, got %zd from PyObject",
            module_name, class_name, size, basicsize);
        if (PyErr_WarnEx(NULL, warning, 0) < 0) goto bad;
    }
    return (PyTypeObject *)result;
bad:
    Py_XDECREF(result);
    return NULL;
}
#endif

/* Import */
static PyObject *__Pyx_Import(PyObject *name, PyObject *from_list, int level) {
    PyObject *module = 0;
    PyObject *empty_dict = 0;
    PyObject *empty_list = 0;
    #if PY_MAJOR_VERSION < 3
    PyObject *py_import;
    py_import = __Pyx_PyObject_GetAttrStr(__pyx_b, __pyx_n_s_import);
    if (unlikely(!py_import))
        goto bad;
    if (!from_list) {
        empty_list = PyList_New(0);
        if (unlikely(!empty_list))
            goto bad;
        from_list = empty_list;
    }
    #endif
    empty_dict = PyDict_New();
    if (unlikely(!empty_dict))
        goto bad;
    {
        #if PY_MAJOR_VERSION >= 3
        if (level == -1) {
            if (strchr(__Pyx_MODULE_NAME, '.') != NULL) {
                module = PyImport_ImportModuleLevelObject(
                    name, __pyx_d, empty_dict, from_list, 1);
                if (unlikely(!module)) {
                    if (unlikely(!PyErr_ExceptionMatches(PyExc_ImportError)))
                        goto bad;
                    PyErr_Clear();
                }
            }
            level = 0;
        }
        #endif
        if (!module) {
            #if PY_MAJOR_VERSION < 3
            PyObject *py_level = PyInt_FromLong(level);
            if (unlikely(!py_level))
                goto bad;
            module = PyObject_CallFunctionObjArgs(py_import,
                name, __pyx_d, empty_dict, from_list, py_level, (PyObject *)NULL);
            Py_DECREF(py_level);
            #else
            module = PyImport_ImportModuleLevelObject(
                name, __pyx_d, empty_dict, from_list, level);
            #endif
        }
    }
bad:
    Py_XDECREF(empty_dict);
    Py_XDECREF(empty_list);
    #if PY_MAJOR_VERSION < 3
    Py_XDECREF(py_import);
    #endif
    return module;
}

/* ImportDottedModule */
#if PY_MAJOR_VERSION >= 3
static PyObject *__Pyx__ImportDottedModule_Error(PyObject *name, PyObject *parts_tuple, Py_ssize_t count) {
    PyObject *partial_name = NULL, *slice = NULL, *sep = NULL;
    if (unlikely(PyErr_Occurred())) {
        PyErr_Clear();
    }
    if (likely(PyTuple_GET_SIZE(parts_tuple) == count)) {
        partial_name = name;
    } else {
        slice = PySequence_GetSlice(parts_tuple, 0, count);
        if (unlikely(!slice))
            goto bad;
        sep = PyUnicode_FromStringAndSize(".", 1);
        if (unlikely(!sep))
            goto bad;
        partial_name = PyUnicode_Join(sep, slice);
    }
    PyErr_Format(
#if PY_MAJOR_VERSION < 3
        PyExc_ImportError,
        "No module named '%s'", PyString_AS_STRING(partial_name));
#else
#if PY_VERSION_HEX >= 0x030600B1
        PyExc_ModuleNotFoundError,
#else
        PyExc_ImportError,
#endif
        "No module named '%U'", partial_name);
#endif
bad:
    Py_XDECREF(sep);
    Py_XDECREF(slice);
    Py_XDECREF(partial_name);
    return NULL;
}
#endif
#if PY_MAJOR_VERSION >= 3
static PyObject *__Pyx__ImportDottedModule_Lookup(PyObject *name) {
    PyObject *imported_module;
#if PY_VERSION_HEX < 0x030700A1 || (CYTHON_COMPILING_IN_PYPY && PYPY_VERSION_NUM  < 0x07030400)
    PyObject *modules = PyImport_GetModuleDict();
    if (unlikely(!modules))
        return NULL;
    imported_module = __Pyx_PyDict_GetItemStr(modules, name);
    Py_XINCREF(imported_module);
#else
    imported_module = PyImport_GetModule(name);
#endif
    return imported_module;
}
#endif
#if PY_MAJOR_VERSION >= 3
static PyObject *__Pyx_ImportDottedModule_WalkParts(PyObject *module, PyObject *name, PyObject *parts_tuple) {
    Py_ssize_t i, nparts;
    nparts = PyTuple_GET_SIZE(parts_tuple);
    for (i=1; i < nparts && module; i++) {
        PyObject *part, *submodule;
#if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
        part = PyTuple_GET_ITEM(parts_tuple, i);
#else
        part = PySequence_ITEM(parts_tuple, i);
#endif
        submodule = __Pyx_PyObject_GetAttrStrNoError(module, part);
#if !(CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS)
        Py_DECREF(part);
#endif
        Py_DECREF(module);
        module = submodule;
    }
    if (unlikely(!module)) {
        return __Pyx__ImportDottedModule_Error(name, parts_tuple, i);
    }
    return module;
}
#endif
static PyObject *__Pyx__ImportDottedModule(PyObject *name, PyObject *parts_tuple) {
#if PY_MAJOR_VERSION < 3
    PyObject *module, *from_list, *star = __pyx_n_s__6;
    CYTHON_UNUSED_VAR(parts_tuple);
    from_list = PyList_New(1);
    if (unlikely(!from_list))
        return NULL;
    Py_INCREF(star);
    PyList_SET_ITEM(from_list, 0, star);
    module = __Pyx_Import(name, from_list, 0);
    Py_DECREF(from_list);
    return module;
#else
    PyObject *imported_module;
    PyObject *module = __Pyx_Import(name, NULL, 0);
    if (!parts_tuple || unlikely(!module))
        return module;
    imported_module = __Pyx__ImportDottedModule_Lookup(name);
    if (likely(imported_module)) {
        Py_DECREF(module);
        return imported_module;
    }
    PyErr_Clear();
    return __Pyx_ImportDottedModule_WalkParts(module, name, parts_tuple);
#endif
}
static PyObject *__Pyx_ImportDottedModule(PyObject *name, PyObject *parts_tuple) {
#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX >= 0x030400B1
    PyObject *module = __Pyx__ImportDottedModule_Lookup(name);
    if (likely(module)) {
        PyObject *spec = __Pyx_PyObject_GetAttrStrNoError(module, __pyx_n_s_spec);
        if (likely(spec)) {
            PyObject *unsafe = __Pyx_PyObject_GetAttrStrNoError(spec, __pyx_n_s_initializing);
            if (likely(!unsafe || !__Pyx_PyObject_IsTrue(unsafe))) {
                Py_DECREF(spec);
                spec = NULL;
            }
            Py_XDECREF(unsafe);
        }
        if (likely(!spec)) {
            PyErr_Clear();
            return module;
        }
        Py_DECREF(spec);
        Py_DECREF(module);
    } else if (PyErr_Occurred()) {
        PyErr_Clear();
    }
#endif
    return __Pyx__ImportDottedModule(name, parts_tuple);
}

/* ImportFrom */
static PyObject* __Pyx_ImportFrom(PyObject* module, PyObject* name) {
    PyObject* value = __Pyx_PyObject_GetAttrStr(module, name);
    if (unlikely(!value) && PyErr_ExceptionMatches(PyExc_AttributeError)) {
        const char* module_name_str = 0;
        PyObject* module_name = 0;
        PyObject* module_dot = 0;
        PyObject* full_name = 0;
        PyErr_Clear();
        module_name_str = PyModule_GetName(module);
        if (unlikely(!module_name_str)) { goto modbad; }
        module_name = PyUnicode_FromString(module_name_str);
        if (unlikely(!module_name)) { goto modbad; }
        module_dot = PyUnicode_Concat(module_name, __pyx_kp_u__7);
        if (unlikely(!module_dot)) { goto modbad; }
        full_name = PyUnicode_Concat(module_dot, name);
        if (unlikely(!full_name)) { goto modbad; }
        #if PY_VERSION_HEX < 0x030700A1 || (CYTHON_COMPILING_IN_PYPY && PYPY_VERSION_NUM  < 0x07030400)
        {
            PyObject *modules = PyImport_GetModuleDict();
            if (unlikely(!modules))
                goto modbad;
            value = PyObject_GetItem(modules, full_name);
        }
        #else
        value = PyImport_GetModule(full_name);
        #endif
      modbad:
        Py_XDECREF(full_name);
        Py_XDECREF(module_dot);
        Py_XDECREF(module_name);
    }
    if (unlikely(!value)) {
        PyErr_Format(PyExc_ImportError,
        #if PY_MAJOR_VERSION < 3
            "cannot import name %.230s", PyString_AS_STRING(name));
        #else
            "cannot import name %S", name);
        #endif
    }
    return value;
}

/* FetchSharedCythonModule */
static PyObject *__Pyx_FetchSharedCythonABIModule(void) {
    PyObject *abi_module = PyImport_AddModule((char*) __PYX_ABI_MODULE_NAME);
    if (unlikely(!abi_module)) return NULL;
    Py_INCREF(abi_module);
    return abi_module;
}

/* FetchCommonType */
static int __Pyx_VerifyCachedType(PyObject *cached_type,
                               const char *name,
                               Py_ssize_t basicsize,
                               Py_ssize_t expected_basicsize) {
    if (!PyType_Check(cached_type)) {
        PyErr_Format(PyExc_TypeError,
            "Shared Cython type %.200s is not a type object", name);
        return -1;
    }
    if (basicsize != expected_basicsize) {
        PyErr_Format(PyExc_TypeError,
            "Shared Cython type %.200s has the wrong size, try recompiling",
            name);
        return -1;
    }
    return 0;
}
#if !CYTHON_USE_TYPE_SPECS
static PyTypeObject* __Pyx_FetchCommonType(PyTypeObject* type) {
    PyObject* abi_module;
    const char* object_name;
    PyTypeObject *cached_type = NULL;
    abi_module = __Pyx_FetchSharedCythonABIModule();
    if (!abi_module) return NULL;
    object_name = strrchr(type->tp_name, '.');
    object_name = object_name ? object_name+1 : type->tp_name;
    cached_type = (PyTypeObject*) PyObject_GetAttrString(abi_module, object_name);
    if (cached_type) {
        if (__Pyx_VerifyCachedType(
              (PyObject *)cached_type,
              object_name,
              cached_type->tp_basicsize,
              type->tp_basicsize) < 0) {
            goto bad;
        }
        goto done;
    }
    if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad;
    PyErr_Clear();
    if (PyType_Ready(type) < 0) goto bad;
    if (PyObject_SetAttrString(abi_module, object_name, (PyObject *)type) < 0)
        goto bad;
    Py_INCREF(type);
    cached_type = type;
done:
    Py_DECREF(abi_module);
    return cached_type;
bad:
    Py_XDECREF(cached_type);
    cached_type = NULL;
    goto done;
}
#else
static PyTypeObject *__Pyx_FetchCommonTypeFromSpec(PyObject *module, PyType_Spec *spec, PyObject *bases) {
    PyObject *abi_module, *cached_type = NULL;
    const char* object_name = strrchr(spec->name, '.');
    object_name = object_name ? object_name+1 : spec->name;
    abi_module = __Pyx_FetchSharedCythonABIModule();
    if (!abi_module) return NULL;
    cached_type = PyObject_GetAttrString(abi_module, object_name);
    if (cached_type) {
        Py_ssize_t basicsize;
#if CYTHON_COMPILING_IN_LIMITED_API
        PyObject *py_basicsize;
        py_basicsize = PyObject_GetAttrString(cached_type, "__basicsize__");
        if (unlikely(!py_basicsize)) goto bad;
        basicsize = PyLong_AsSsize_t(py_basicsize);
        Py_DECREF(py_basicsize);
        py_basicsize = 0;
        if (unlikely(basicsize == (Py_ssize_t)-1) && PyErr_Occurred()) goto bad;
#else
        basicsize = likely(PyType_Check(cached_type)) ? ((PyTypeObject*) cached_type)->tp_basicsize : -1;
#endif
        if (__Pyx_VerifyCachedType(
              cached_type,
              object_name,
              basicsize,
              spec->basicsize) < 0) {
            goto bad;
        }
        goto done;
    }
    if (!PyErr_ExceptionMatches(PyExc_AttributeError)) goto bad;
    PyErr_Clear();
    CYTHON_UNUSED_VAR(module);
    cached_type = __Pyx_PyType_FromModuleAndSpec(abi_module, spec, bases);
    if (unlikely(!cached_type)) goto bad;
    if (unlikely(__Pyx_fix_up_extension_type_from_spec(spec, (PyTypeObject *) cached_type) < 0)) goto bad;
    if (PyObject_SetAttrString(abi_module, object_name, cached_type) < 0) goto bad;
done:
    Py_DECREF(abi_module);
    assert(cached_type == NULL || PyType_Check(cached_type));
    return (PyTypeObject *) cached_type;
bad:
    Py_XDECREF(cached_type);
    cached_type = NULL;
    goto done;
}
#endif

/* PyVectorcallFastCallDict */
#if CYTHON_METH_FASTCALL
static PyObject *__Pyx_PyVectorcall_FastCallDict_kw(PyObject *func, __pyx_vectorcallfunc vc, PyObject *const *args, size_t nargs, PyObject *kw)
{
    PyObject *res = NULL;
    PyObject *kwnames;
    PyObject **newargs;
    PyObject **kwvalues;
    Py_ssize_t i, pos;
    size_t j;
    PyObject *key, *value;
    unsigned long keys_are_strings;
    Py_ssize_t nkw = PyDict_GET_SIZE(kw);
    newargs = (PyObject **)PyMem_Malloc((nargs + (size_t)nkw) * sizeof(args[0]));
    if (unlikely(newargs == NULL)) {
        PyErr_NoMemory();
        return NULL;
    }
    for (j = 0; j < nargs; j++) newargs[j] = args[j];
    kwnames = PyTuple_New(nkw);
    if (unlikely(kwnames == NULL)) {
        PyMem_Free(newargs);
        return NULL;
    }
    kwvalues = newargs + nargs;
    pos = i = 0;
    keys_are_strings = Py_TPFLAGS_UNICODE_SUBCLASS;
    while (PyDict_Next(kw, &pos, &key, &value)) {
        keys_are_strings &= Py_TYPE(key)->tp_flags;
        Py_INCREF(key);
        Py_INCREF(value);
        PyTuple_SET_ITEM(kwnames, i, key);
        kwvalues[i] = value;
        i++;
    }
    if (unlikely(!keys_are_strings)) {
        PyErr_SetString(PyExc_TypeError, "keywords must be strings");
        goto cleanup;
    }
    res = vc(func, newargs, nargs, kwnames);
cleanup:
    Py_DECREF(kwnames);
    for (i = 0; i < nkw; i++)
        Py_DECREF(kwvalues[i]);
    PyMem_Free(newargs);
    return res;
}
static CYTHON_INLINE PyObject *__Pyx_PyVectorcall_FastCallDict(PyObject *func, __pyx_vectorcallfunc vc, PyObject *const *args, size_t nargs, PyObject *kw)
{
    if (likely(kw == NULL) || PyDict_GET_SIZE(kw) == 0) {
        return vc(func, args, nargs, NULL);
    }
    return __Pyx_PyVectorcall_FastCallDict_kw(func, vc, args, nargs, kw);
}
#endif

/* CythonFunctionShared */
#if CYTHON_COMPILING_IN_LIMITED_API
static CYTHON_INLINE int __Pyx__IsSameCyOrCFunction(PyObject *func, void *cfunc) {
    if (__Pyx_CyFunction_Check(func)) {
        return PyCFunction_GetFunction(((__pyx_CyFunctionObject*)func)->func) == (PyCFunction) cfunc;
    } else if (PyCFunction_Check(func)) {
        return PyCFunction_GetFunction(func) == (PyCFunction) cfunc;
    }
    return 0;
}
#else
static CYTHON_INLINE int __Pyx__IsSameCyOrCFunction(PyObject *func, void *cfunc) {
    return __Pyx_CyOrPyCFunction_Check(func) && __Pyx_CyOrPyCFunction_GET_FUNCTION(func) == (PyCFunction) cfunc;
}
#endif
static CYTHON_INLINE void __Pyx__CyFunction_SetClassObj(__pyx_CyFunctionObject* f, PyObject* classobj) {
#if PY_VERSION_HEX < 0x030900B1 || CYTHON_COMPILING_IN_LIMITED_API
    __Pyx_Py_XDECREF_SET(
        __Pyx_CyFunction_GetClassObj(f),
            ((classobj) ? __Pyx_NewRef(classobj) : NULL));
#else
    __Pyx_Py_XDECREF_SET(
        ((PyCMethodObject *) (f))->mm_class,
        (PyTypeObject*)((classobj) ? __Pyx_NewRef(classobj) : NULL));
#endif
}
static PyObject *
__Pyx_CyFunction_get_doc(__pyx_CyFunctionObject *op, void *closure)
{
    CYTHON_UNUSED_VAR(closure);
    if (unlikely(op->func_doc == NULL)) {
#if CYTHON_COMPILING_IN_LIMITED_API
        op->func_doc = PyObject_GetAttrString(op->func, "__doc__");
        if (unlikely(!op->func_doc)) return NULL;
#else
        if (((PyCFunctionObject*)op)->m_ml->ml_doc) {
#if PY_MAJOR_VERSION >= 3
            op->func_doc = PyUnicode_FromString(((PyCFunctionObject*)op)->m_ml->ml_doc);
#else
            op->func_doc = PyString_FromString(((PyCFunctionObject*)op)->m_ml->ml_doc);
#endif
            if (unlikely(op->func_doc == NULL))
                return NULL;
        } else {
            Py_INCREF(Py_None);
            return Py_None;
        }
#endif
    }
    Py_INCREF(op->func_doc);
    return op->func_doc;
}
static int
__Pyx_CyFunction_set_doc(__pyx_CyFunctionObject *op, PyObject *value, void *context)
{
    CYTHON_UNUSED_VAR(context);
    if (value == NULL) {
        value = Py_None;
    }
    Py_INCREF(value);
    __Pyx_Py_XDECREF_SET(op->func_doc, value);
    return 0;
}
static PyObject *
__Pyx_CyFunction_get_name(__pyx_CyFunctionObject *op, void *context)
{
    CYTHON_UNUSED_VAR(context);
    if (unlikely(op->func_name == NULL)) {
#if CYTHON_COMPILING_IN_LIMITED_API
        op->func_name = PyObject_GetAttrString(op->func, "__name__");
#elif PY_MAJOR_VERSION >= 3
        op->func_name = PyUnicode_InternFromString(((PyCFunctionObject*)op)->m_ml->ml_name);
#else
        op->func_name = PyString_InternFromString(((PyCFunctionObject*)op)->m_ml->ml_name);
#endif
        if (unlikely(op->func_name == NULL))
            return NULL;
    }
    Py_INCREF(op->func_name);
    return op->func_name;
}
static int
__Pyx_CyFunction_set_name(__pyx_CyFunctionObject *op, PyObject *value, void *context)
{
    CYTHON_UNUSED_VAR(context);
#if PY_MAJOR_VERSION >= 3
    if (unlikely(value == NULL || !PyUnicode_Check(value)))
#else
    if (unlikely(value == NULL || !PyString_Check(value)))
#endif
    {
        PyErr_SetString(PyExc_TypeError,
                        "__name__ must be set to a string object");
        return -1;
    }
    Py_INCREF(value);
    __Pyx_Py_XDECREF_SET(op->func_name, value);
    return 0;
}
static PyObject *
__Pyx_CyFunction_get_qualname(__pyx_CyFunctionObject *op, void *context)
{
    CYTHON_UNUSED_VAR(context);
    Py_INCREF(op->func_qualname);
    return op->func_qualname;
}
static int
__Pyx_CyFunction_set_qualname(__pyx_CyFunctionObject *op, PyObject *value, void *context)
{
    CYTHON_UNUSED_VAR(context);
#if PY_MAJOR_VERSION >= 3
    if (unlikely(value == NULL || !PyUnicode_Check(value)))
#else
    if (unlikely(value == NULL || !PyString_Check(value)))
#endif
    {
        PyErr_SetString(PyExc_TypeError,
                        "__qualname__ must be set to a string object");
        return -1;
    }
    Py_INCREF(value);
    __Pyx_Py_XDECREF_SET(op->func_qualname, value);
    return 0;
}
static PyObject *
__Pyx_CyFunction_get_dict(__pyx_CyFunctionObject *op, void *context)
{
    CYTHON_UNUSED_VAR(context);
    if (unlikely(op->func_dict == NULL)) {
        op->func_dict = PyDict_New();
        if (unlikely(op->func_dict == NULL))
            return NULL;
    }
    Py_INCREF(op->func_dict);
    return op->func_dict;
}
static int
__Pyx_CyFunction_set_dict(__pyx_CyFunctionObject *op, PyObject *value, void *context)
{
    CYTHON_UNUSED_VAR(context);
    if (unlikely(value == NULL)) {
        PyErr_SetString(PyExc_TypeError,
               "function's dictionary may not be deleted");
        return -1;
    }
    if (unlikely(!PyDict_Check(value))) {
        PyErr_SetString(PyExc_TypeError,
               "setting function's dictionary to a non-dict");
        return -1;
    }
    Py_INCREF(value);
    __Pyx_Py_XDECREF_SET(op->func_dict, value);
    return 0;
}
static PyObject *
__Pyx_CyFunction_get_globals(__pyx_CyFunctionObject *op, void *context)
{
    CYTHON_UNUSED_VAR(context);
    Py_INCREF(op->func_globals);
    return op->func_globals;
}
static PyObject *
__Pyx_CyFunction_get_closure(__pyx_CyFunctionObject *op, void *context)
{
    CYTHON_UNUSED_VAR(op);
    CYTHON_UNUSED_VAR(context);
    Py_INCREF(Py_None);
    return Py_None;
}
static PyObject *
__Pyx_CyFunction_get_code(__pyx_CyFunctionObject *op, void *context)
{
    PyObject* result = (op->func_code) ? op->func_code : Py_None;
    CYTHON_UNUSED_VAR(context);
    Py_INCREF(result);
    return result;
}
static int
__Pyx_CyFunction_init_defaults(__pyx_CyFunctionObject *op) {
    int result = 0;
    PyObject *res = op->defaults_getter((PyObject *) op);
    if (unlikely(!res))
        return -1;
    #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
    op->defaults_tuple = PyTuple_GET_ITEM(res, 0);
    Py_INCREF(op->defaults_tuple);
    op->defaults_kwdict = PyTuple_GET_ITEM(res, 1);
    Py_INCREF(op->defaults_kwdict);
    #else
    op->defaults_tuple = __Pyx_PySequence_ITEM(res, 0);
    if (unlikely(!op->defaults_tuple)) result = -1;
    else {
        op->defaults_kwdict = __Pyx_PySequence_ITEM(res, 1);
        if (unlikely(!op->defaults_kwdict)) result = -1;
    }
    #endif
    Py_DECREF(res);
    return result;
}
static int
__Pyx_CyFunction_set_defaults(__pyx_CyFunctionObject *op, PyObject* value, void *context) {
    CYTHON_UNUSED_VAR(context);
    if (!value) {
        value = Py_None;
    } else if (unlikely(value != Py_None && !PyTuple_Check(value))) {
        PyErr_SetString(PyExc_TypeError,
                        "__defaults__ must be set to a tuple object");
        return -1;
    }
    PyErr_WarnEx(PyExc_RuntimeWarning, "changes to cyfunction.__defaults__ will not "
                 "currently affect the values used in function calls", 1);
    Py_INCREF(value);
    __Pyx_Py_XDECREF_SET(op->defaults_tuple, value);
    return 0;
}
static PyObject *
__Pyx_CyFunction_get_defaults(__pyx_CyFunctionObject *op, void *context) {
    PyObject* result = op->defaults_tuple;
    CYTHON_UNUSED_VAR(context);
    if (unlikely(!result)) {
        if (op->defaults_getter) {
            if (unlikely(__Pyx_CyFunction_init_defaults(op) < 0)) return NULL;
            result = op->defaults_tuple;
        } else {
            result = Py_None;
        }
    }
    Py_INCREF(result);
    return result;
}
static int
__Pyx_CyFunction_set_kwdefaults(__pyx_CyFunctionObject *op, PyObject* value, void *context) {
    CYTHON_UNUSED_VAR(context);
    if (!value) {
        value = Py_None;
    } else if (unlikely(value != Py_None && !PyDict_Check(value))) {
        PyErr_SetString(PyExc_TypeError,
                        "__kwdefaults__ must be set to a dict object");
        return -1;
    }
    PyErr_WarnEx(PyExc_RuntimeWarning, "changes to cyfunction.__kwdefaults__ will not "
                 "currently affect the values used in function calls", 1);
    Py_INCREF(value);
    __Pyx_Py_XDECREF_SET(op->defaults_kwdict, value);
    return 0;
}
static PyObject *
__Pyx_CyFunction_get_kwdefaults(__pyx_CyFunctionObject *op, void *context) {
    PyObject* result = op->defaults_kwdict;
    CYTHON_UNUSED_VAR(context);
    if (unlikely(!result)) {
        if (op->defaults_getter) {
            if (unlikely(__Pyx_CyFunction_init_defaults(op) < 0)) return NULL;
            result = op->defaults_kwdict;
        } else {
            result = Py_None;
        }
    }
    Py_INCREF(result);
    return result;
}
static int
__Pyx_CyFunction_set_annotations(__pyx_CyFunctionObject *op, PyObject* value, void *context) {
    CYTHON_UNUSED_VAR(context);
    if (!value || value == Py_None) {
        value = NULL;
    } else if (unlikely(!PyDict_Check(value))) {
        PyErr_SetString(PyExc_TypeError,
                        "__annotations__ must be set to a dict object");
        return -1;
    }
    Py_XINCREF(value);
    __Pyx_Py_XDECREF_SET(op->func_annotations, value);
    return 0;
}
static PyObject *
__Pyx_CyFunction_get_annotations(__pyx_CyFunctionObject *op, void *context) {
    PyObject* result = op->func_annotations;
    CYTHON_UNUSED_VAR(context);
    if (unlikely(!result)) {
        result = PyDict_New();
        if (unlikely(!result)) return NULL;
        op->func_annotations = result;
    }
    Py_INCREF(result);
    return result;
}
static PyObject *
__Pyx_CyFunction_get_is_coroutine(__pyx_CyFunctionObject *op, void *context) {
    int is_coroutine;
    CYTHON_UNUSED_VAR(context);
    if (op->func_is_coroutine) {
        return __Pyx_NewRef(op->func_is_coroutine);
    }
    is_coroutine = op->flags & __Pyx_CYFUNCTION_COROUTINE;
#if PY_VERSION_HEX >= 0x03050000
    if (is_coroutine) {
        PyObject *module, *fromlist, *marker = __pyx_n_s_is_coroutine;
        fromlist = PyList_New(1);
        if (unlikely(!fromlist)) return NULL;
        Py_INCREF(marker);
#if CYTHON_ASSUME_SAFE_MACROS
        PyList_SET_ITEM(fromlist, 0, marker);
#else
        if (unlikely(PyList_SetItem(fromlist, 0, marker) < 0)) {
            Py_DECREF(marker);
            Py_DECREF(fromlist);
            return NULL;
        }
#endif
        module = PyImport_ImportModuleLevelObject(__pyx_n_s_asyncio_coroutines, NULL, NULL, fromlist, 0);
        Py_DECREF(fromlist);
        if (unlikely(!module)) goto ignore;
        op->func_is_coroutine = __Pyx_PyObject_GetAttrStr(module, marker);
        Py_DECREF(module);
        if (likely(op->func_is_coroutine)) {
            return __Pyx_NewRef(op->func_is_coroutine);
        }
ignore:
        PyErr_Clear();
    }
#endif
    op->func_is_coroutine = __Pyx_PyBool_FromLong(is_coroutine);
    return __Pyx_NewRef(op->func_is_coroutine);
}
#if CYTHON_COMPILING_IN_LIMITED_API
static PyObject *
__Pyx_CyFunction_get_module(__pyx_CyFunctionObject *op, void *context) {
    CYTHON_UNUSED_VAR(context);
    return PyObject_GetAttrString(op->func, "__module__");
}
static int
__Pyx_CyFunction_set_module(__pyx_CyFunctionObject *op, PyObject* value, void *context) {
    CYTHON_UNUSED_VAR(context);
    return PyObject_SetAttrString(op->func, "__module__", value);
}
#endif
static PyGetSetDef __pyx_CyFunction_getsets[] = {
    {(char *) "func_doc", (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
    {(char *) "__doc__",  (getter)__Pyx_CyFunction_get_doc, (setter)__Pyx_CyFunction_set_doc, 0, 0},
    {(char *) "func_name", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
    {(char *) "__name__", (getter)__Pyx_CyFunction_get_name, (setter)__Pyx_CyFunction_set_name, 0, 0},
    {(char *) "__qualname__", (getter)__Pyx_CyFunction_get_qualname, (setter)__Pyx_CyFunction_set_qualname, 0, 0},
    {(char *) "func_dict", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
    {(char *) "__dict__", (getter)__Pyx_CyFunction_get_dict, (setter)__Pyx_CyFunction_set_dict, 0, 0},
    {(char *) "func_globals", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
    {(char *) "__globals__", (getter)__Pyx_CyFunction_get_globals, 0, 0, 0},
    {(char *) "func_closure", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
    {(char *) "__closure__", (getter)__Pyx_CyFunction_get_closure, 0, 0, 0},
    {(char *) "func_code", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
    {(char *) "__code__", (getter)__Pyx_CyFunction_get_code, 0, 0, 0},
    {(char *) "func_defaults", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
    {(char *) "__defaults__", (getter)__Pyx_CyFunction_get_defaults, (setter)__Pyx_CyFunction_set_defaults, 0, 0},
    {(char *) "__kwdefaults__", (getter)__Pyx_CyFunction_get_kwdefaults, (setter)__Pyx_CyFunction_set_kwdefaults, 0, 0},
    {(char *) "__annotations__", (getter)__Pyx_CyFunction_get_annotations, (setter)__Pyx_CyFunction_set_annotations, 0, 0},
    {(char *) "_is_coroutine", (getter)__Pyx_CyFunction_get_is_coroutine, 0, 0, 0},
#if CYTHON_COMPILING_IN_LIMITED_API
    {"__module__", (getter)__Pyx_CyFunction_get_module, (setter)__Pyx_CyFunction_set_module, 0, 0},
#endif
    {0, 0, 0, 0, 0}
};
static PyMemberDef __pyx_CyFunction_members[] = {
#if !CYTHON_COMPILING_IN_LIMITED_API
    {(char *) "__module__", T_OBJECT, offsetof(PyCFunctionObject, m_module), 0, 0},
#endif
#if CYTHON_USE_TYPE_SPECS
    {(char *) "__dictoffset__", T_PYSSIZET, offsetof(__pyx_CyFunctionObject, func_dict), READONLY, 0},
#if CYTHON_METH_FASTCALL
#if CYTHON_BACKPORT_VECTORCALL
    {(char *) "__vectorcalloffset__", T_PYSSIZET, offsetof(__pyx_CyFunctionObject, func_vectorcall), READONLY, 0},
#else
#if !CYTHON_COMPILING_IN_LIMITED_API
    {(char *) "__vectorcalloffset__", T_PYSSIZET, offsetof(PyCFunctionObject, vectorcall), READONLY, 0},
#endif
#endif
#endif
#if PY_VERSION_HEX < 0x030500A0 || CYTHON_COMPILING_IN_LIMITED_API
    {(char *) "__weaklistoffset__", T_PYSSIZET, offsetof(__pyx_CyFunctionObject, func_weakreflist), READONLY, 0},
#else
    {(char *) "__weaklistoffset__", T_PYSSIZET, offsetof(PyCFunctionObject, m_weakreflist), READONLY, 0},
#endif
#endif
    {0, 0, 0,  0, 0}
};
static PyObject *
__Pyx_CyFunction_reduce(__pyx_CyFunctionObject *m, PyObject *args)
{
    CYTHON_UNUSED_VAR(args);
#if PY_MAJOR_VERSION >= 3
    Py_INCREF(m->func_qualname);
    return m->func_qualname;
#else
    return PyString_FromString(((PyCFunctionObject*)m)->m_ml->ml_name);
#endif
}
static PyMethodDef __pyx_CyFunction_methods[] = {
    {"__reduce__", (PyCFunction)__Pyx_CyFunction_reduce, METH_VARARGS, 0},
    {0, 0, 0, 0}
};
#if PY_VERSION_HEX < 0x030500A0 || CYTHON_COMPILING_IN_LIMITED_API
#define __Pyx_CyFunction_weakreflist(cyfunc) ((cyfunc)->func_weakreflist)
#else
#define __Pyx_CyFunction_weakreflist(cyfunc) (((PyCFunctionObject*)cyfunc)->m_weakreflist)
#endif
static PyObject *__Pyx_CyFunction_Init(__pyx_CyFunctionObject *op, PyMethodDef *ml, int flags, PyObject* qualname,
                                       PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
#if !CYTHON_COMPILING_IN_LIMITED_API
    PyCFunctionObject *cf = (PyCFunctionObject*) op;
#endif
    if (unlikely(op == NULL))
        return NULL;
#if CYTHON_COMPILING_IN_LIMITED_API
    op->func = PyCFunction_NewEx(ml, (PyObject*)op, module);
    if (unlikely(!op->func)) return NULL;
#endif
    op->flags = flags;
    __Pyx_CyFunction_weakreflist(op) = NULL;
#if !CYTHON_COMPILING_IN_LIMITED_API
    cf->m_ml = ml;
    cf->m_self = (PyObject *) op;
#endif
    Py_XINCREF(closure);
    op->func_closure = closure;
#if !CYTHON_COMPILING_IN_LIMITED_API
    Py_XINCREF(module);
    cf->m_module = module;
#endif
    op->func_dict = NULL;
    op->func_name = NULL;
    Py_INCREF(qualname);
    op->func_qualname = qualname;
    op->func_doc = NULL;
#if PY_VERSION_HEX < 0x030900B1 || CYTHON_COMPILING_IN_LIMITED_API
    op->func_classobj = NULL;
#else
    ((PyCMethodObject*)op)->mm_class = NULL;
#endif
    op->func_globals = globals;
    Py_INCREF(op->func_globals);
    Py_XINCREF(code);
    op->func_code = code;
    op->defaults_pyobjects = 0;
    op->defaults_size = 0;
    op->defaults = NULL;
    op->defaults_tuple = NULL;
    op->defaults_kwdict = NULL;
    op->defaults_getter = NULL;
    op->func_annotations = NULL;
    op->func_is_coroutine = NULL;
#if CYTHON_METH_FASTCALL
    switch (ml->ml_flags & (METH_VARARGS | METH_FASTCALL | METH_NOARGS | METH_O | METH_KEYWORDS | METH_METHOD)) {
    case METH_NOARGS:
        __Pyx_CyFunction_func_vectorcall(op) = __Pyx_CyFunction_Vectorcall_NOARGS;
        break;
    case METH_O:
        __Pyx_CyFunction_func_vectorcall(op) = __Pyx_CyFunction_Vectorcall_O;
        break;
    case METH_METHOD | METH_FASTCALL | METH_KEYWORDS:
        __Pyx_CyFunction_func_vectorcall(op) = __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS_METHOD;
        break;
    case METH_FASTCALL | METH_KEYWORDS:
        __Pyx_CyFunction_func_vectorcall(op) = __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS;
        break;
    case METH_VARARGS | METH_KEYWORDS:
        __Pyx_CyFunction_func_vectorcall(op) = NULL;
        break;
    default:
        PyErr_SetString(PyExc_SystemError, "Bad call flags for CyFunction");
        Py_DECREF(op);
        return NULL;
    }
#endif
    return (PyObject *) op;
}
static int
__Pyx_CyFunction_clear(__pyx_CyFunctionObject *m)
{
    Py_CLEAR(m->func_closure);
#if CYTHON_COMPILING_IN_LIMITED_API
    Py_CLEAR(m->func);
#else
    Py_CLEAR(((PyCFunctionObject*)m)->m_module);
#endif
    Py_CLEAR(m->func_dict);
    Py_CLEAR(m->func_name);
    Py_CLEAR(m->func_qualname);
    Py_CLEAR(m->func_doc);
    Py_CLEAR(m->func_globals);
    Py_CLEAR(m->func_code);
#if !CYTHON_COMPILING_IN_LIMITED_API
#if PY_VERSION_HEX < 0x030900B1
    Py_CLEAR(__Pyx_CyFunction_GetClassObj(m));
#else
    {
        PyObject *cls = (PyObject*) ((PyCMethodObject *) (m))->mm_class;
        ((PyCMethodObject *) (m))->mm_class = NULL;
        Py_XDECREF(cls);
    }
#endif
#endif
    Py_CLEAR(m->defaults_tuple);
    Py_CLEAR(m->defaults_kwdict);
    Py_CLEAR(m->func_annotations);
    Py_CLEAR(m->func_is_coroutine);
    if (m->defaults) {
        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
        int i;
        for (i = 0; i < m->defaults_pyobjects; i++)
            Py_XDECREF(pydefaults[i]);
        PyObject_Free(m->defaults);
        m->defaults = NULL;
    }
    return 0;
}
static void __Pyx__CyFunction_dealloc(__pyx_CyFunctionObject *m)
{
    if (__Pyx_CyFunction_weakreflist(m) != NULL)
        PyObject_ClearWeakRefs((PyObject *) m);
    __Pyx_CyFunction_clear(m);
    __Pyx_PyHeapTypeObject_GC_Del(m);
}
static void __Pyx_CyFunction_dealloc(__pyx_CyFunctionObject *m)
{
    PyObject_GC_UnTrack(m);
    __Pyx__CyFunction_dealloc(m);
}
static int __Pyx_CyFunction_traverse(__pyx_CyFunctionObject *m, visitproc visit, void *arg)
{
    Py_VISIT(m->func_closure);
#if CYTHON_COMPILING_IN_LIMITED_API
    Py_VISIT(m->func);
#else
    Py_VISIT(((PyCFunctionObject*)m)->m_module);
#endif
    Py_VISIT(m->func_dict);
    Py_VISIT(m->func_name);
    Py_VISIT(m->func_qualname);
    Py_VISIT(m->func_doc);
    Py_VISIT(m->func_globals);
    Py_VISIT(m->func_code);
#if !CYTHON_COMPILING_IN_LIMITED_API
    Py_VISIT(__Pyx_CyFunction_GetClassObj(m));
#endif
    Py_VISIT(m->defaults_tuple);
    Py_VISIT(m->defaults_kwdict);
    Py_VISIT(m->func_is_coroutine);
    if (m->defaults) {
        PyObject **pydefaults = __Pyx_CyFunction_Defaults(PyObject *, m);
        int i;
        for (i = 0; i < m->defaults_pyobjects; i++)
            Py_VISIT(pydefaults[i]);
    }
    return 0;
}
static PyObject*
__Pyx_CyFunction_repr(__pyx_CyFunctionObject *op)
{
#if PY_MAJOR_VERSION >= 3
    return PyUnicode_FromFormat("<cyfunction %U at %p>",
                                op->func_qualname, (void *)op);
#else
    return PyString_FromFormat("<cyfunction %s at %p>",
                               PyString_AsString(op->func_qualname), (void *)op);
#endif
}
static PyObject * __Pyx_CyFunction_CallMethod(PyObject *func, PyObject *self, PyObject *arg, PyObject *kw) {
#if CYTHON_COMPILING_IN_LIMITED_API
    PyObject *f = ((__pyx_CyFunctionObject*)func)->func;
    PyObject *py_name = NULL;
    PyCFunction meth;
    int flags;
    meth = PyCFunction_GetFunction(f);
    if (unlikely(!meth)) return NULL;
    flags = PyCFunction_GetFlags(f);
    if (unlikely(flags < 0)) return NULL;
#else
    PyCFunctionObject* f = (PyCFunctionObject*)func;
    PyCFunction meth = f->m_ml->ml_meth;
    int flags = f->m_ml->ml_flags;
#endif
    Py_ssize_t size;
    switch (flags & (METH_VARARGS | METH_KEYWORDS | METH_NOARGS | METH_O)) {
    case METH_VARARGS:
        if (likely(kw == NULL || PyDict_Size(kw) == 0))
            return (*meth)(self, arg);
        break;
    case METH_VARARGS | METH_KEYWORDS:
        return (*(PyCFunctionWithKeywords)(void*)meth)(self, arg, kw);
    case METH_NOARGS:
        if (likely(kw == NULL || PyDict_Size(kw) == 0)) {
#if CYTHON_ASSUME_SAFE_MACROS
            size = PyTuple_GET_SIZE(arg);
#else
            size = PyTuple_Size(arg);
            if (unlikely(size < 0)) return NULL;
#endif
            if (likely(size == 0))
                return (*meth)(self, NULL);
#if CYTHON_COMPILING_IN_LIMITED_API
            py_name = __Pyx_CyFunction_get_name((__pyx_CyFunctionObject*)func, NULL);
            if (!py_name) return NULL;
            PyErr_Format(PyExc_TypeError,
                "%.200S() takes no arguments (%" CYTHON_FORMAT_SSIZE_T "d given)",
                py_name, size);
            Py_DECREF(py_name);
#else
            PyErr_Format(PyExc_TypeError,
                "%.200s() takes no arguments (%" CYTHON_FORMAT_SSIZE_T "d given)",
                f->m_ml->ml_name, size);
#endif
            return NULL;
        }
        break;
    case METH_O:
        if (likely(kw == NULL || PyDict_Size(kw) == 0)) {
#if CYTHON_ASSUME_SAFE_MACROS
            size = PyTuple_GET_SIZE(arg);
#else
            size = PyTuple_Size(arg);
            if (unlikely(size < 0)) return NULL;
#endif
            if (likely(size == 1)) {
                PyObject *result, *arg0;
                #if CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS
                arg0 = PyTuple_GET_ITEM(arg, 0);
                #else
                arg0 = __Pyx_PySequence_ITEM(arg, 0); if (unlikely(!arg0)) return NULL;
                #endif
                result = (*meth)(self, arg0);
                #if !(CYTHON_ASSUME_SAFE_MACROS && !CYTHON_AVOID_BORROWED_REFS)
                Py_DECREF(arg0);
                #endif
                return result;
            }
#if CYTHON_COMPILING_IN_LIMITED_API
            py_name = __Pyx_CyFunction_get_name((__pyx_CyFunctionObject*)func, NULL);
            if (!py_name) return NULL;
            PyErr_Format(PyExc_TypeError,
                "%.200S() takes exactly one argument (%" CYTHON_FORMAT_SSIZE_T "d given)",
                py_name, size);
            Py_DECREF(py_name);
#else
            PyErr_Format(PyExc_TypeError,
                "%.200s() takes exactly one argument (%" CYTHON_FORMAT_SSIZE_T "d given)",
                f->m_ml->ml_name, size);
#endif
            return NULL;
        }
        break;
    default:
        PyErr_SetString(PyExc_SystemError, "Bad call flags for CyFunction");
        return NULL;
    }
#if CYTHON_COMPILING_IN_LIMITED_API
    py_name = __Pyx_CyFunction_get_name((__pyx_CyFunctionObject*)func, NULL);
    if (!py_name) return NULL;
    PyErr_Format(PyExc_TypeError, "%.200S() takes no keyword arguments",
                 py_name);
    Py_DECREF(py_name);
#else
    PyErr_Format(PyExc_TypeError, "%.200s() takes no keyword arguments",
                 f->m_ml->ml_name);
#endif
    return NULL;
}
static CYTHON_INLINE PyObject *__Pyx_CyFunction_Call(PyObject *func, PyObject *arg, PyObject *kw) {
    PyObject *self, *result;
#if CYTHON_COMPILING_IN_LIMITED_API
    self = PyCFunction_GetSelf(((__pyx_CyFunctionObject*)func)->func);
    if (unlikely(!self) && PyErr_Occurred()) return NULL;
#else
    self = ((PyCFunctionObject*)func)->m_self;
#endif
    result = __Pyx_CyFunction_CallMethod(func, self, arg, kw);
    return result;
}
static PyObject *__Pyx_CyFunction_CallAsMethod(PyObject *func, PyObject *args, PyObject *kw) {
    PyObject *result;
    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *) func;
#if CYTHON_METH_FASTCALL
     __pyx_vectorcallfunc vc = __Pyx_CyFunction_func_vectorcall(cyfunc);
    if (vc) {
#if CYTHON_ASSUME_SAFE_MACROS
        return __Pyx_PyVectorcall_FastCallDict(func, vc, &PyTuple_GET_ITEM(args, 0), (size_t)PyTuple_GET_SIZE(args), kw);
#else
        (void) &__Pyx_PyVectorcall_FastCallDict;
        return PyVectorcall_Call(func, args, kw);
#endif
    }
#endif
    if ((cyfunc->flags & __Pyx_CYFUNCTION_CCLASS) && !(cyfunc->flags & __Pyx_CYFUNCTION_STATICMETHOD)) {
        Py_ssize_t argc;
        PyObject *new_args;
        PyObject *self;
#if CYTHON_ASSUME_SAFE_MACROS
        argc = PyTuple_GET_SIZE(args);
#else
        argc = PyTuple_Size(args);
        if (unlikely(!argc) < 0) return NULL;
#endif
        new_args = PyTuple_GetSlice(args, 1, argc);
        if (unlikely(!new_args))
            return NULL;
        self = PyTuple_GetItem(args, 0);
        if (unlikely(!self)) {
            Py_DECREF(new_args);
#if PY_MAJOR_VERSION > 2
            PyErr_Format(PyExc_TypeError,
                         "unbound method %.200S() needs an argument",
                         cyfunc->func_qualname);
#else
            PyErr_SetString(PyExc_TypeError,
                            "unbound method needs an argument");
#endif
            return NULL;
        }
        result = __Pyx_CyFunction_CallMethod(func, self, new_args, kw);
        Py_DECREF(new_args);
    } else {
        result = __Pyx_CyFunction_Call(func, args, kw);
    }
    return result;
}
#if CYTHON_METH_FASTCALL
static CYTHON_INLINE int __Pyx_CyFunction_Vectorcall_CheckArgs(__pyx_CyFunctionObject *cyfunc, Py_ssize_t nargs, PyObject *kwnames)
{
    int ret = 0;
    if ((cyfunc->flags & __Pyx_CYFUNCTION_CCLASS) && !(cyfunc->flags & __Pyx_CYFUNCTION_STATICMETHOD)) {
        if (unlikely(nargs < 1)) {
            PyErr_Format(PyExc_TypeError, "%.200s() needs an argument",
                         ((PyCFunctionObject*)cyfunc)->m_ml->ml_name);
            return -1;
        }
        ret = 1;
    }
    if (unlikely(kwnames) && unlikely(PyTuple_GET_SIZE(kwnames))) {
        PyErr_Format(PyExc_TypeError,
                     "%.200s() takes no keyword arguments", ((PyCFunctionObject*)cyfunc)->m_ml->ml_name);
        return -1;
    }
    return ret;
}
static PyObject * __Pyx_CyFunction_Vectorcall_NOARGS(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames)
{
    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *)func;
    PyMethodDef* def = ((PyCFunctionObject*)cyfunc)->m_ml;
#if CYTHON_BACKPORT_VECTORCALL
    Py_ssize_t nargs = (Py_ssize_t)nargsf;
#else
    Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
#endif
    PyObject *self;
    switch (__Pyx_CyFunction_Vectorcall_CheckArgs(cyfunc, nargs, kwnames)) {
    case 1:
        self = args[0];
        args += 1;
        nargs -= 1;
        break;
    case 0:
        self = ((PyCFunctionObject*)cyfunc)->m_self;
        break;
    default:
        return NULL;
    }
    if (unlikely(nargs != 0)) {
        PyErr_Format(PyExc_TypeError,
            "%.200s() takes no arguments (%" CYTHON_FORMAT_SSIZE_T "d given)",
            def->ml_name, nargs);
        return NULL;
    }
    return def->ml_meth(self, NULL);
}
static PyObject * __Pyx_CyFunction_Vectorcall_O(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames)
{
    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *)func;
    PyMethodDef* def = ((PyCFunctionObject*)cyfunc)->m_ml;
#if CYTHON_BACKPORT_VECTORCALL
    Py_ssize_t nargs = (Py_ssize_t)nargsf;
#else
    Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
#endif
    PyObject *self;
    switch (__Pyx_CyFunction_Vectorcall_CheckArgs(cyfunc, nargs, kwnames)) {
    case 1:
        self = args[0];
        args += 1;
        nargs -= 1;
        break;
    case 0:
        self = ((PyCFunctionObject*)cyfunc)->m_self;
        break;
    default:
        return NULL;
    }
    if (unlikely(nargs != 1)) {
        PyErr_Format(PyExc_TypeError,
            "%.200s() takes exactly one argument (%" CYTHON_FORMAT_SSIZE_T "d given)",
            def->ml_name, nargs);
        return NULL;
    }
    return def->ml_meth(self, args[0]);
}
static PyObject * __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames)
{
    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *)func;
    PyMethodDef* def = ((PyCFunctionObject*)cyfunc)->m_ml;
#if CYTHON_BACKPORT_VECTORCALL
    Py_ssize_t nargs = (Py_ssize_t)nargsf;
#else
    Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
#endif
    PyObject *self;
    switch (__Pyx_CyFunction_Vectorcall_CheckArgs(cyfunc, nargs, NULL)) {
    case 1:
        self = args[0];
        args += 1;
        nargs -= 1;
        break;
    case 0:
        self = ((PyCFunctionObject*)cyfunc)->m_self;
        break;
    default:
        return NULL;
    }
    return ((_PyCFunctionFastWithKeywords)(void(*)(void))def->ml_meth)(self, args, nargs, kwnames);
}
static PyObject * __Pyx_CyFunction_Vectorcall_FASTCALL_KEYWORDS_METHOD(PyObject *func, PyObject *const *args, size_t nargsf, PyObject *kwnames)
{
    __pyx_CyFunctionObject *cyfunc = (__pyx_CyFunctionObject *)func;
    PyMethodDef* def = ((PyCFunctionObject*)cyfunc)->m_ml;
    PyTypeObject *cls = (PyTypeObject *) __Pyx_CyFunction_GetClassObj(cyfunc);
#if CYTHON_BACKPORT_VECTORCALL
    Py_ssize_t nargs = (Py_ssize_t)nargsf;
#else
    Py_ssize_t nargs = PyVectorcall_NARGS(nargsf);
#endif
    PyObject *self;
    switch (__Pyx_CyFunction_Vectorcall_CheckArgs(cyfunc, nargs, NULL)) {
    case 1:
        self = args[0];
        args += 1;
        nargs -= 1;
        break;
    case 0:
        self = ((PyCFunctionObject*)cyfunc)->m_self;
        break;
    default:
        return NULL;
    }
    return ((__Pyx_PyCMethod)(void(*)(void))def->ml_meth)(self, cls, args, (size_t)nargs, kwnames);
}
#endif
#if CYTHON_USE_TYPE_SPECS
static PyType_Slot __pyx_CyFunctionType_slots[] = {
    {Py_tp_dealloc, (void *)__Pyx_CyFunction_dealloc},
    {Py_tp_repr, (void *)__Pyx_CyFunction_repr},
    {Py_tp_call, (void *)__Pyx_CyFunction_CallAsMethod},
    {Py_tp_traverse, (void *)__Pyx_CyFunction_traverse},
    {Py_tp_clear, (void *)__Pyx_CyFunction_clear},
    {Py_tp_methods, (void *)__pyx_CyFunction_methods},
    {Py_tp_members, (void *)__pyx_CyFunction_members},
    {Py_tp_getset, (void *)__pyx_CyFunction_getsets},
    {Py_tp_descr_get, (void *)__Pyx_PyMethod_New},
    {0, 0},
};
static PyType_Spec __pyx_CyFunctionType_spec = {
    __PYX_TYPE_MODULE_PREFIX "cython_function_or_method",
    sizeof(__pyx_CyFunctionObject),
    0,
#ifdef Py_TPFLAGS_METHOD_DESCRIPTOR
    Py_TPFLAGS_METHOD_DESCRIPTOR |
#endif
#if (defined(_Py_TPFLAGS_HAVE_VECTORCALL) && CYTHON_METH_FASTCALL)
    _Py_TPFLAGS_HAVE_VECTORCALL |
#endif
    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_BASETYPE,
    __pyx_CyFunctionType_slots
};
#else
static PyTypeObject __pyx_CyFunctionType_type = {
    PyVarObject_HEAD_INIT(0, 0)
    __PYX_TYPE_MODULE_PREFIX "cython_function_or_method",
    sizeof(__pyx_CyFunctionObject),
    0,
    (destructor) __Pyx_CyFunction_dealloc,
#if !CYTHON_METH_FASTCALL
    0,
#elif CYTHON_BACKPORT_VECTORCALL
    (printfunc)offsetof(__pyx_CyFunctionObject, func_vectorcall),
#else
    offsetof(PyCFunctionObject, vectorcall),
#endif
    0,
    0,
#if PY_MAJOR_VERSION < 3
    0,
#else
    0,
#endif
    (reprfunc) __Pyx_CyFunction_repr,
    0,
    0,
    0,
    0,
    __Pyx_CyFunction_CallAsMethod,
    0,
    0,
    0,
    0,
#ifdef Py_TPFLAGS_METHOD_DESCRIPTOR
    Py_TPFLAGS_METHOD_DESCRIPTOR |
#endif
#if defined(_Py_TPFLAGS_HAVE_VECTORCALL) && CYTHON_METH_FASTCALL
    _Py_TPFLAGS_HAVE_VECTORCALL |
#endif
    Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC | Py_TPFLAGS_BASETYPE,
    0,
    (traverseproc) __Pyx_CyFunction_traverse,
    (inquiry) __Pyx_CyFunction_clear,
    0,
#if PY_VERSION_HEX < 0x030500A0
    offsetof(__pyx_CyFunctionObject, func_weakreflist),
#else
    offsetof(PyCFunctionObject, m_weakreflist),
#endif
    0,
    0,
    __pyx_CyFunction_methods,
    __pyx_CyFunction_members,
    __pyx_CyFunction_getsets,
    0,
    0,
    __Pyx_PyMethod_New,
    0,
    offsetof(__pyx_CyFunctionObject, func_dict),
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
    0,
#if PY_VERSION_HEX >= 0x030400a1
    0,
#endif
#if PY_VERSION_HEX >= 0x030800b1 && (!CYTHON_COMPILING_IN_PYPY || PYPY_VERSION_NUM >= 0x07030800)
    0,
#endif
#if __PYX_NEED_TP_PRINT_SLOT
    0,
#endif
#if PY_VERSION_HEX >= 0x030C0000
    0,
#endif
#if CYTHON_COMPILING_IN_PYPY && PY_VERSION_HEX >= 0x03090000 && PY_VERSION_HEX < 0x030a0000
    0,
#endif
};
#endif
static int __pyx_CyFunction_init(PyObject *module) {
#if CYTHON_USE_TYPE_SPECS
    __pyx_CyFunctionType = __Pyx_FetchCommonTypeFromSpec(module, &__pyx_CyFunctionType_spec, NULL);
#else
    CYTHON_UNUSED_VAR(module);
    __pyx_CyFunctionType = __Pyx_FetchCommonType(&__pyx_CyFunctionType_type);
#endif
    if (unlikely(__pyx_CyFunctionType == NULL)) {
        return -1;
    }
    return 0;
}
static CYTHON_INLINE void *__Pyx_CyFunction_InitDefaults(PyObject *func, size_t size, int pyobjects) {
    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
    m->defaults = PyObject_Malloc(size);
    if (unlikely(!m->defaults))
        return PyErr_NoMemory();
    memset(m->defaults, 0, size);
    m->defaults_pyobjects = pyobjects;
    m->defaults_size = size;
    return m->defaults;
}
static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsTuple(PyObject *func, PyObject *tuple) {
    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
    m->defaults_tuple = tuple;
    Py_INCREF(tuple);
}
static CYTHON_INLINE void __Pyx_CyFunction_SetDefaultsKwDict(PyObject *func, PyObject *dict) {
    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
    m->defaults_kwdict = dict;
    Py_INCREF(dict);
}
static CYTHON_INLINE void __Pyx_CyFunction_SetAnnotationsDict(PyObject *func, PyObject *dict) {
    __pyx_CyFunctionObject *m = (__pyx_CyFunctionObject *) func;
    m->func_annotations = dict;
    Py_INCREF(dict);
}

/* CythonFunction */
static PyObject *__Pyx_CyFunction_New(PyMethodDef *ml, int flags, PyObject* qualname,
                                      PyObject *closure, PyObject *module, PyObject* globals, PyObject* code) {
    PyObject *op = __Pyx_CyFunction_Init(
        PyObject_GC_New(__pyx_CyFunctionObject, __pyx_CyFunctionType),
        ml, flags, qualname, closure, module, globals, code
    );
    if (likely(op)) {
        PyObject_GC_Track(op);
    }
    return op;
}

/* CLineInTraceback */
#ifndef CYTHON_CLINE_IN_TRACEBACK
static int __Pyx_CLineForTraceback(PyThreadState *tstate, int c_line) {
    PyObject *use_cline;
    PyObject *ptype, *pvalue, *ptraceback;
#if CYTHON_COMPILING_IN_CPYTHON
    PyObject **cython_runtime_dict;
#endif
    CYTHON_MAYBE_UNUSED_VAR(tstate);
    if (unlikely(!__pyx_cython_runtime)) {
        return c_line;
    }
    __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
#if CYTHON_COMPILING_IN_CPYTHON
    cython_runtime_dict = _PyObject_GetDictPtr(__pyx_cython_runtime);
    if (likely(cython_runtime_dict)) {
        __PYX_PY_DICT_LOOKUP_IF_MODIFIED(
            use_cline, *cython_runtime_dict,
            __Pyx_PyDict_GetItemStr(*cython_runtime_dict, __pyx_n_s_cline_in_traceback))
    } else
#endif
    {
      PyObject *use_cline_obj = __Pyx_PyObject_GetAttrStrNoError(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback);
      if (use_cline_obj) {
        use_cline = PyObject_Not(use_cline_obj) ? Py_False : Py_True;
        Py_DECREF(use_cline_obj);
      } else {
        PyErr_Clear();
        use_cline = NULL;
      }
    }
    if (!use_cline) {
        c_line = 0;
        (void) PyObject_SetAttr(__pyx_cython_runtime, __pyx_n_s_cline_in_traceback, Py_False);
    }
    else if (use_cline == Py_False || (use_cline != Py_True && PyObject_Not(use_cline) != 0)) {
        c_line = 0;
    }
    __Pyx_ErrRestoreInState(tstate, ptype, pvalue, ptraceback);
    return c_line;
}
#endif

/* CodeObjectCache */
#if !CYTHON_COMPILING_IN_LIMITED_API
static int __pyx_bisect_code_objects(__Pyx_CodeObjectCacheEntry* entries, int count, int code_line) {
    int start = 0, mid = 0, end = count - 1;
    if (end >= 0 && code_line > entries[end].code_line) {
        return count;
    }
    while (start < end) {
        mid = start + (end - start) / 2;
        if (code_line < entries[mid].code_line) {
            end = mid;
        } else if (code_line > entries[mid].code_line) {
             start = mid + 1;
        } else {
            return mid;
        }
    }
    if (code_line <= entries[mid].code_line) {
        return mid;
    } else {
        return mid + 1;
    }
}
static PyCodeObject *__pyx_find_code_object(int code_line) {
    PyCodeObject* code_object;
    int pos;
    if (unlikely(!code_line) || unlikely(!__pyx_code_cache.entries)) {
        return NULL;
    }
    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
    if (unlikely(pos >= __pyx_code_cache.count) || unlikely(__pyx_code_cache.entries[pos].code_line != code_line)) {
        return NULL;
    }
    code_object = __pyx_code_cache.entries[pos].code_object;
    Py_INCREF(code_object);
    return code_object;
}
static void __pyx_insert_code_object(int code_line, PyCodeObject* code_object) {
    int pos, i;
    __Pyx_CodeObjectCacheEntry* entries = __pyx_code_cache.entries;
    if (unlikely(!code_line)) {
        return;
    }
    if (unlikely(!entries)) {
        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Malloc(64*sizeof(__Pyx_CodeObjectCacheEntry));
        if (likely(entries)) {
            __pyx_code_cache.entries = entries;
            __pyx_code_cache.max_count = 64;
            __pyx_code_cache.count = 1;
            entries[0].code_line = code_line;
            entries[0].code_object = code_object;
            Py_INCREF(code_object);
        }
        return;
    }
    pos = __pyx_bisect_code_objects(__pyx_code_cache.entries, __pyx_code_cache.count, code_line);
    if ((pos < __pyx_code_cache.count) && unlikely(__pyx_code_cache.entries[pos].code_line == code_line)) {
        PyCodeObject* tmp = entries[pos].code_object;
        entries[pos].code_object = code_object;
        Py_DECREF(tmp);
        return;
    }
    if (__pyx_code_cache.count == __pyx_code_cache.max_count) {
        int new_max = __pyx_code_cache.max_count + 64;
        entries = (__Pyx_CodeObjectCacheEntry*)PyMem_Realloc(
            __pyx_code_cache.entries, ((size_t)new_max) * sizeof(__Pyx_CodeObjectCacheEntry));
        if (unlikely(!entries)) {
            return;
        }
        __pyx_code_cache.entries = entries;
        __pyx_code_cache.max_count = new_max;
    }
    for (i=__pyx_code_cache.count; i>pos; i--) {
        entries[i] = entries[i-1];
    }
    entries[pos].code_line = code_line;
    entries[pos].code_object = code_object;
    __pyx_code_cache.count++;
    Py_INCREF(code_object);
}
#endif

/* AddTraceback */
#include "compile.h"
#include "frameobject.h"
#include "traceback.h"
#if PY_VERSION_HEX >= 0x030b00a6 && !CYTHON_COMPILING_IN_LIMITED_API
  #ifndef Py_BUILD_CORE
    #define Py_BUILD_CORE 1
  #endif
  #include "internal/pycore_frame.h"
#endif
#if CYTHON_COMPILING_IN_LIMITED_API
static PyObject *__Pyx_PyCode_Replace_For_AddTraceback(PyObject *code, PyObject *scratch_dict,
                                                       PyObject *firstlineno, PyObject *name) {
    PyObject *replace = NULL;
    if (unlikely(PyDict_SetItemString(scratch_dict, "co_firstlineno", firstlineno))) return NULL;
    if (unlikely(PyDict_SetItemString(scratch_dict, "co_name", name))) return NULL;
    replace = PyObject_GetAttrString(code, "replace");
    if (likely(replace)) {
        PyObject *result;
        result = PyObject_Call(replace, __pyx_empty_tuple, scratch_dict);
        Py_DECREF(replace);
        return result;
    }
    #if __PYX_LIMITED_VERSION_HEX < 0x030780000
    PyErr_Clear();
    {
        PyObject *compiled = NULL, *result = NULL;
        if (unlikely(PyDict_SetItemString(scratch_dict, "code", code))) return NULL;
        if (unlikely(PyDict_SetItemString(scratch_dict, "type", (PyObject*)(&PyType_Type)))) return NULL;
        compiled = Py_CompileString(
            "out = type(code)(\n"
            "  code.co_argcount, code.co_kwonlyargcount, code.co_nlocals, code.co_stacksize,\n"
            "  code.co_flags, code.co_code, code.co_consts, code.co_names,\n"
            "  code.co_varnames, code.co_filename, co_name, co_firstlineno,\n"
            "  code.co_lnotab)\n", "<dummy>", Py_file_input);
        if (!compiled) return NULL;
        result = PyEval_EvalCode(compiled, scratch_dict, scratch_dict);
        Py_DECREF(compiled);
        if (!result) PyErr_Print();
        Py_DECREF(result);
        result = PyDict_GetItemString(scratch_dict, "out");
        if (result) Py_INCREF(result);
        return result;
    }
    #endif
}
static void __Pyx_AddTraceback(const char *funcname, int c_line,
                               int py_line, const char *filename) {
    PyObject *code_object = NULL, *py_py_line = NULL, *py_funcname = NULL, *dict = NULL;
    PyObject *replace = NULL, *getframe = NULL, *frame = NULL;
    PyObject *exc_type, *exc_value, *exc_traceback;
    int success = 0;
    if (c_line) {
        (void) __pyx_cfilenm;
        (void) __Pyx_CLineForTraceback(__Pyx_PyThreadState_Current, c_line);
    }
    PyErr_Fetch(&exc_type, &exc_value, &exc_traceback);
    code_object = Py_CompileString("_getframe()", filename, Py_eval_input);
    if (unlikely(!code_object)) goto bad;
    py_py_line = PyLong_FromLong(py_line);
    if (unlikely(!py_py_line)) goto bad;
    py_funcname = PyUnicode_FromString(funcname);
    if (unlikely(!py_funcname)) goto bad;
    dict = PyDict_New();
    if (unlikely(!dict)) goto bad;
    {
        PyObject *old_code_object = code_object;
        code_object = __Pyx_PyCode_Replace_For_AddTraceback(code_object, dict, py_py_line, py_funcname);
        Py_DECREF(old_code_object);
    }
    if (unlikely(!code_object)) goto bad;
    getframe = PySys_GetObject("_getframe");
    if (unlikely(!getframe)) goto bad;
    if (unlikely(PyDict_SetItemString(dict, "_getframe", getframe))) goto bad;
    frame = PyEval_EvalCode(code_object, dict, dict);
    if (unlikely(!frame) || frame == Py_None) goto bad;
    success = 1;
  bad:
    PyErr_Restore(exc_type, exc_value, exc_traceback);
    Py_XDECREF(code_object);
    Py_XDECREF(py_py_line);
    Py_XDECREF(py_funcname);
    Py_XDECREF(dict);
    Py_XDECREF(replace);
    if (success) {
        PyTraceBack_Here(
            (struct _frame*)frame);
    }
    Py_XDECREF(frame);
}
#else
static PyCodeObject* __Pyx_CreateCodeObjectForTraceback(
            const char *funcname, int c_line,
            int py_line, const char *filename) {
    PyCodeObject *py_code = NULL;
    PyObject *py_funcname = NULL;
    #if PY_MAJOR_VERSION < 3
    PyObject *py_srcfile = NULL;
    py_srcfile = PyString_FromString(filename);
    if (!py_srcfile) goto bad;
    #endif
    if (c_line) {
        #if PY_MAJOR_VERSION < 3
        py_funcname = PyString_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
        if (!py_funcname) goto bad;
        #else
        py_funcname = PyUnicode_FromFormat( "%s (%s:%d)", funcname, __pyx_cfilenm, c_line);
        if (!py_funcname) goto bad;
        funcname = PyUnicode_AsUTF8(py_funcname);
        if (!funcname) goto bad;
        #endif
    }
    else {
        #if PY_MAJOR_VERSION < 3
        py_funcname = PyString_FromString(funcname);
        if (!py_funcname) goto bad;
        #endif
    }
    #if PY_MAJOR_VERSION < 3
    py_code = __Pyx_PyCode_New(
        0,
        0,
        0,
        0,
        0,
        0,
        __pyx_empty_bytes, /*PyObject *code,*/
        __pyx_empty_tuple, /*PyObject *consts,*/
        __pyx_empty_tuple, /*PyObject *names,*/
        __pyx_empty_tuple, /*PyObject *varnames,*/
        __pyx_empty_tuple, /*PyObject *freevars,*/
        __pyx_empty_tuple, /*PyObject *cellvars,*/
        py_srcfile,   /*PyObject *filename,*/
        py_funcname,  /*PyObject *name,*/
        py_line,
        __pyx_empty_bytes  /*PyObject *lnotab*/
    );
    Py_DECREF(py_srcfile);
    #else
    py_code = PyCode_NewEmpty(filename, funcname, py_line);
    #endif
    Py_XDECREF(py_funcname);  // XDECREF since it's only set on Py3 if cline
    return py_code;
bad:
    Py_XDECREF(py_funcname);
    #if PY_MAJOR_VERSION < 3
    Py_XDECREF(py_srcfile);
    #endif
    return NULL;
}
static void __Pyx_AddTraceback(const char *funcname, int c_line,
                               int py_line, const char *filename) {
    PyCodeObject *py_code = 0;
    PyFrameObject *py_frame = 0;
    PyThreadState *tstate = __Pyx_PyThreadState_Current;
    PyObject *ptype, *pvalue, *ptraceback;
    if (c_line) {
        c_line = __Pyx_CLineForTraceback(tstate, c_line);
    }
    py_code = __pyx_find_code_object(c_line ? -c_line : py_line);
    if (!py_code) {
        __Pyx_ErrFetchInState(tstate, &ptype, &pvalue, &ptraceback);
        py_code = __Pyx_CreateCodeObjectForTraceback(
            funcname, c_line, py_line, filename);
        if (!py_code) {
            /* If the code object creation fails, then we should clear the
               fetched exception references and propagate the new exception */
            Py_XDECREF(ptype);
            Py_XDECREF(pvalue);
            Py_XDECREF(ptraceback);
            goto bad;
        }
        __Pyx_ErrRestoreInState(tstate, ptype, pvalue, ptraceback);
        __pyx_insert_code_object(c_line ? -c_line : py_line, py_code);
    }
    py_frame = PyFrame_New(
        tstate,            /*PyThreadState *tstate,*/
        py_code,           /*PyCodeObject *code,*/
        __pyx_d,    /*PyObject *globals,*/
        0                  /*PyObject *locals*/
    );
    if (!py_frame) goto bad;
    __Pyx_PyFrame_SetLineNumber(py_frame, py_line);
    PyTraceBack_Here(py_frame);
bad:
    Py_XDECREF(py_code);
    Py_XDECREF(py_frame);
}
#endif

/* CIntFromPyVerify */
#define __PYX_VERIFY_RETURN_INT(target_type, func_type, func_value)\
    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 0)
#define __PYX_VERIFY_RETURN_INT_EXC(target_type, func_type, func_value)\
    __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, 1)
#define __PYX__VERIFY_RETURN_INT(target_type, func_type, func_value, exc)\
    {\
        func_type value = func_value;\
        if (sizeof(target_type) < sizeof(func_type)) {\
            if (unlikely(value != (func_type) (target_type) value)) {\
                func_type zero = 0;\
                if (exc && unlikely(value == (func_type)-1 && PyErr_Occurred()))\
                    return (target_type) -1;\
                if (is_unsigned && unlikely(value < zero))\
                    goto raise_neg_overflow;\
                else\
                    goto raise_overflow;\
            }\
        }\
        return (target_type) value;\
    }

/* Declarations */
#if CYTHON_CCOMPLEX && (1) && (!0 || __cplusplus)
  #ifdef __cplusplus
    static CYTHON_INLINE __pyx_t_float_complex __pyx_t_float_complex_from_parts(float x, float y) {
      return ::std::complex< float >(x, y);
    }
  #else
    static CYTHON_INLINE __pyx_t_float_complex __pyx_t_float_complex_from_parts(float x, float y) {
      return x + y*(__pyx_t_float_complex)_Complex_I;
    }
  #endif
#else
    static CYTHON_INLINE __pyx_t_float_complex __pyx_t_float_complex_from_parts(float x, float y) {
      __pyx_t_float_complex z;
      z.real = x;
      z.imag = y;
      return z;
    }
#endif

/* Arithmetic */
#if CYTHON_CCOMPLEX && (1) && (!0 || __cplusplus)
#else
    static CYTHON_INLINE int __Pyx_c_eq_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
       return (a.real == b.real) && (a.imag == b.imag);
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_sum_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        __pyx_t_float_complex z;
        z.real = a.real + b.real;
        z.imag = a.imag + b.imag;
        return z;
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_diff_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        __pyx_t_float_complex z;
        z.real = a.real - b.real;
        z.imag = a.imag - b.imag;
        return z;
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_prod_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        __pyx_t_float_complex z;
        z.real = a.real * b.real - a.imag * b.imag;
        z.imag = a.real * b.imag + a.imag * b.real;
        return z;
    }
    #if 1
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_quot_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        if (b.imag == 0) {
            return __pyx_t_float_complex_from_parts(a.real / b.real, a.imag / b.real);
        } else if (fabsf(b.real) >= fabsf(b.imag)) {
            if (b.real == 0 && b.imag == 0) {
                return __pyx_t_float_complex_from_parts(a.real / b.real, a.imag / b.imag);
            } else {
                float r = b.imag / b.real;
                float s = (float)(1.0) / (b.real + b.imag * r);
                return __pyx_t_float_complex_from_parts(
                    (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
            }
        } else {
            float r = b.real / b.imag;
            float s = (float)(1.0) / (b.imag + b.real * r);
            return __pyx_t_float_complex_from_parts(
                (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
        }
    }
    #else
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_quot_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
        if (b.imag == 0) {
            return __pyx_t_float_complex_from_parts(a.real / b.real, a.imag / b.real);
        } else {
            float denom = b.real * b.real + b.imag * b.imag;
            return __pyx_t_float_complex_from_parts(
                (a.real * b.real + a.imag * b.imag) / denom,
                (a.imag * b.real - a.real * b.imag) / denom);
        }
    }
    #endif
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_neg_float(__pyx_t_float_complex a) {
        __pyx_t_float_complex z;
        z.real = -a.real;
        z.imag = -a.imag;
        return z;
    }
    static CYTHON_INLINE int __Pyx_c_is_zero_float(__pyx_t_float_complex a) {
       return (a.real == 0) && (a.imag == 0);
    }
    static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_conj_float(__pyx_t_float_complex a) {
        __pyx_t_float_complex z;
        z.real =  a.real;
        z.imag = -a.imag;
        return z;
    }
    #if 1
        static CYTHON_INLINE float __Pyx_c_abs_float(__pyx_t_float_complex z) {
          #if !defined(HAVE_HYPOT) || defined(_MSC_VER)
            return sqrtf(z.real*z.real + z.imag*z.imag);
          #else
            return hypotf(z.real, z.imag);
          #endif
        }
        static CYTHON_INLINE __pyx_t_float_complex __Pyx_c_pow_float(__pyx_t_float_complex a, __pyx_t_float_complex b) {
            __pyx_t_float_complex z;
            float r, lnr, theta, z_r, z_theta;
            if (b.imag == 0 && b.real == (int)b.real) {
                if (b.real < 0) {
                    float denom = a.real * a.real + a.imag * a.imag;
                    a.real = a.real / denom;
                    a.imag = -a.imag / denom;
                    b.real = -b.real;
                }
                switch ((int)b.real) {
                    case 0:
                        z.real = 1;
                        z.imag = 0;
                        return z;
                    case 1:
                        return a;
                    case 2:
                        return __Pyx_c_prod_float(a, a);
                    case 3:
                        z = __Pyx_c_prod_float(a, a);
                        return __Pyx_c_prod_float(z, a);
                    case 4:
                        z = __Pyx_c_prod_float(a, a);
                        return __Pyx_c_prod_float(z, z);
                }
            }
            if (a.imag == 0) {
                if (a.real == 0) {
                    return a;
                } else if ((b.imag == 0) && (a.real >= 0)) {
                    z.real = powf(a.real, b.real);
                    z.imag = 0;
                    return z;
                } else if (a.real > 0) {
                    r = a.real;
                    theta = 0;
                } else {
                    r = -a.real;
                    theta = atan2f(0.0, -1.0);
                }
            } else {
                r = __Pyx_c_abs_float(a);
                theta = atan2f(a.imag, a.real);
            }
            lnr = logf(r);
            z_r = expf(lnr * b.real - theta * b.imag);
            z_theta = theta * b.real + lnr * b.imag;
            z.real = z_r * cosf(z_theta);
            z.imag = z_r * sinf(z_theta);
            return z;
        }
    #endif
#endif

/* Declarations */
#if CYTHON_CCOMPLEX && (1) && (!0 || __cplusplus)
  #ifdef __cplusplus
    static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(double x, double y) {
      return ::std::complex< double >(x, y);
    }
  #else
    static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(double x, double y) {
      return x + y*(__pyx_t_double_complex)_Complex_I;
    }
  #endif
#else
    static CYTHON_INLINE __pyx_t_double_complex __pyx_t_double_complex_from_parts(double x, double y) {
      __pyx_t_double_complex z;
      z.real = x;
      z.imag = y;
      return z;
    }
#endif

/* Arithmetic */
#if CYTHON_CCOMPLEX && (1) && (!0 || __cplusplus)
#else
    static CYTHON_INLINE int __Pyx_c_eq_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
       return (a.real == b.real) && (a.imag == b.imag);
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_sum_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        __pyx_t_double_complex z;
        z.real = a.real + b.real;
        z.imag = a.imag + b.imag;
        return z;
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_diff_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        __pyx_t_double_complex z;
        z.real = a.real - b.real;
        z.imag = a.imag - b.imag;
        return z;
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_prod_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        __pyx_t_double_complex z;
        z.real = a.real * b.real - a.imag * b.imag;
        z.imag = a.real * b.imag + a.imag * b.real;
        return z;
    }
    #if 1
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_quot_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        if (b.imag == 0) {
            return __pyx_t_double_complex_from_parts(a.real / b.real, a.imag / b.real);
        } else if (fabs(b.real) >= fabs(b.imag)) {
            if (b.real == 0 && b.imag == 0) {
                return __pyx_t_double_complex_from_parts(a.real / b.real, a.imag / b.imag);
            } else {
                double r = b.imag / b.real;
                double s = (double)(1.0) / (b.real + b.imag * r);
                return __pyx_t_double_complex_from_parts(
                    (a.real + a.imag * r) * s, (a.imag - a.real * r) * s);
            }
        } else {
            double r = b.real / b.imag;
            double s = (double)(1.0) / (b.imag + b.real * r);
            return __pyx_t_double_complex_from_parts(
                (a.real * r + a.imag) * s, (a.imag * r - a.real) * s);
        }
    }
    #else
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_quot_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
        if (b.imag == 0) {
            return __pyx_t_double_complex_from_parts(a.real / b.real, a.imag / b.real);
        } else {
            double denom = b.real * b.real + b.imag * b.imag;
            return __pyx_t_double_complex_from_parts(
                (a.real * b.real + a.imag * b.imag) / denom,
                (a.imag * b.real - a.real * b.imag) / denom);
        }
    }
    #endif
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_neg_double(__pyx_t_double_complex a) {
        __pyx_t_double_complex z;
        z.real = -a.real;
        z.imag = -a.imag;
        return z;
    }
    static CYTHON_INLINE int __Pyx_c_is_zero_double(__pyx_t_double_complex a) {
       return (a.real == 0) && (a.imag == 0);
    }
    static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_conj_double(__pyx_t_double_complex a) {
        __pyx_t_double_complex z;
        z.real =  a.real;
        z.imag = -a.imag;
        return z;
    }
    #if 1
        static CYTHON_INLINE double __Pyx_c_abs_double(__pyx_t_double_complex z) {
          #if !defined(HAVE_HYPOT) || defined(_MSC_VER)
            return sqrt(z.real*z.real + z.imag*z.imag);
          #else
            return hypot(z.real, z.imag);
          #endif
        }
        static CYTHON_INLINE __pyx_t_double_complex __Pyx_c_pow_double(__pyx_t_double_complex a, __pyx_t_double_complex b) {
            __pyx_t_double_complex z;
            double r, lnr, theta, z_r, z_theta;
            if (b.imag == 0 && b.real == (int)b.real) {
                if (b.real < 0) {
                    double denom = a.real * a.real + a.imag * a.imag;
                    a.real = a.real / denom;
                    a.imag = -a.imag / denom;
                    b.real = -b.real;
                }
                switch ((int)b.real) {
                    case 0:
                        z.real = 1;
                        z.imag = 0;
                        return z;
                    case 1:
                        return a;
                    case 2:
                        return __Pyx_c_prod_double(a, a);
                    case 3:
                        z = __Pyx_c_prod_double(a, a);
                        return __Pyx_c_prod_double(z, a);
                    case 4:
                        z = __Pyx_c_prod_double(a, a);
                        return __Pyx_c_prod_double(z, z);
                }
            }
            if (a.imag == 0) {
                if (a.real == 0) {
                    return a;
                } else if ((b.imag == 0) && (a.real >= 0)) {
                    z.real = pow(a.real, b.real);
                    z.imag = 0;
                    return z;
                } else if (a.real > 0) {
                    r = a.real;
                    theta = 0;
                } else {
                    r = -a.real;
                    theta = atan2(0.0, -1.0);
                }
            } else {
                r = __Pyx_c_abs_double(a);
                theta = atan2(a.imag, a.real);
            }
            lnr = log(r);
            z_r = exp(lnr * b.real - theta * b.imag);
            z_theta = theta * b.real + lnr * b.imag;
            z.real = z_r * cos(z_theta);
            z.imag = z_r * sin(z_theta);
            return z;
        }
    #endif
#endif

/* CIntToPy */
static CYTHON_INLINE PyObject* __Pyx_PyInt_From_int(int value) {
#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#endif
    const int neg_one = (int) -1, const_zero = (int) 0;
#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
#pragma GCC diagnostic pop
#endif
    const int is_unsigned = neg_one > const_zero;
    if (is_unsigned) {
        if (sizeof(int) < sizeof(long)) {
            return PyInt_FromLong((long) value);
        } else if (sizeof(int) <= sizeof(unsigned long)) {
            return PyLong_FromUnsignedLong((unsigned long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
#endif
        }
    } else {
        if (sizeof(int) <= sizeof(long)) {
            return PyInt_FromLong((long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
            return PyLong_FromLongLong((PY_LONG_LONG) value);
#endif
        }
    }
    {
        int one = 1; int little = (int)*(unsigned char *)&one;
        unsigned char *bytes = (unsigned char *)&value;
#if !CYTHON_COMPILING_IN_LIMITED_API
        return _PyLong_FromByteArray(bytes, sizeof(int),
                                     little, !is_unsigned);
#else
        PyObject *from_bytes, *result = NULL;
        PyObject *py_bytes = NULL, *arg_tuple = NULL, *kwds = NULL, *order_str = NULL;
        from_bytes = PyObject_GetAttrString((PyObject*)&PyInt_Type, "from_bytes");
        if (!from_bytes) return NULL;
        py_bytes = PyBytes_FromStringAndSize((char*)bytes, sizeof(int));
        if (!py_bytes) goto limited_bad;
        order_str = PyUnicode_FromString(little ? "little" : "big");
        if (!order_str) goto limited_bad;
        arg_tuple = PyTuple_Pack(2, py_bytes, order_str);
        if (!arg_tuple) goto limited_bad;
        kwds = PyDict_New();
        if (!kwds) goto limited_bad;
        if (PyDict_SetItemString(kwds, "signed", __Pyx_NewRef(!is_unsigned ? Py_True : Py_False))) goto limited_bad;
        result = PyObject_Call(from_bytes, arg_tuple, kwds);
        limited_bad:
        Py_XDECREF(from_bytes);
        Py_XDECREF(py_bytes);
        Py_XDECREF(order_str);
        Py_XDECREF(arg_tuple);
        Py_XDECREF(kwds);
        return result;
#endif
    }
}

/* CIntToPy */
static CYTHON_INLINE PyObject* __Pyx_PyInt_From___pyx_anon_enum(int value) {
#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#endif
    const int neg_one = (int) -1, const_zero = (int) 0;
#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
#pragma GCC diagnostic pop
#endif
    const int is_unsigned = neg_one > const_zero;
    if (is_unsigned) {
        if (sizeof(int) < sizeof(long)) {
            return PyInt_FromLong((long) value);
        } else if (sizeof(int) <= sizeof(unsigned long)) {
            return PyLong_FromUnsignedLong((unsigned long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(int) <= sizeof(unsigned PY_LONG_LONG)) {
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
#endif
        }
    } else {
        if (sizeof(int) <= sizeof(long)) {
            return PyInt_FromLong((long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(int) <= sizeof(PY_LONG_LONG)) {
            return PyLong_FromLongLong((PY_LONG_LONG) value);
#endif
        }
    }
    {
        int one = 1; int little = (int)*(unsigned char *)&one;
        unsigned char *bytes = (unsigned char *)&value;
#if !CYTHON_COMPILING_IN_LIMITED_API
        return _PyLong_FromByteArray(bytes, sizeof(int),
                                     little, !is_unsigned);
#else
        PyObject *from_bytes, *result = NULL;
        PyObject *py_bytes = NULL, *arg_tuple = NULL, *kwds = NULL, *order_str = NULL;
        from_bytes = PyObject_GetAttrString((PyObject*)&PyInt_Type, "from_bytes");
        if (!from_bytes) return NULL;
        py_bytes = PyBytes_FromStringAndSize((char*)bytes, sizeof(int));
        if (!py_bytes) goto limited_bad;
        order_str = PyUnicode_FromString(little ? "little" : "big");
        if (!order_str) goto limited_bad;
        arg_tuple = PyTuple_Pack(2, py_bytes, order_str);
        if (!arg_tuple) goto limited_bad;
        kwds = PyDict_New();
        if (!kwds) goto limited_bad;
        if (PyDict_SetItemString(kwds, "signed", __Pyx_NewRef(!is_unsigned ? Py_True : Py_False))) goto limited_bad;
        result = PyObject_Call(from_bytes, arg_tuple, kwds);
        limited_bad:
        Py_XDECREF(from_bytes);
        Py_XDECREF(py_bytes);
        Py_XDECREF(order_str);
        Py_XDECREF(arg_tuple);
        Py_XDECREF(kwds);
        return result;
#endif
    }
}

/* CIntFromPy */
static CYTHON_INLINE size_t __Pyx_PyInt_As_size_t(PyObject *x) {
#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#endif
    const size_t neg_one = (size_t) -1, const_zero = (size_t) 0;
#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
#pragma GCC diagnostic pop
#endif
    const int is_unsigned = neg_one > const_zero;
#if PY_MAJOR_VERSION < 3
    if (likely(PyInt_Check(x))) {
        if ((sizeof(size_t) < sizeof(long))) {
            __PYX_VERIFY_RETURN_INT(size_t, long, PyInt_AS_LONG(x))
        } else {
            long val = PyInt_AS_LONG(x);
            if (is_unsigned && unlikely(val < 0)) {
                goto raise_neg_overflow;
            }
            return (size_t) val;
        }
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
#if CYTHON_USE_PYLONG_INTERNALS
            if (unlikely(__Pyx_PyLong_IsNeg(x))) {
                goto raise_neg_overflow;
            } else if (__Pyx_PyLong_IsCompact(x)) {
                __PYX_VERIFY_RETURN_INT(size_t, __Pyx_compact_upylong, __Pyx_PyLong_CompactValueUnsigned(x))
            } else {
                const digit* digits = __Pyx_PyLong_Digits(x);
                assert(__Pyx_PyLong_DigitCount(x) > 1);
                switch (__Pyx_PyLong_DigitCount(x)) {
                    case 2:
                        if ((8 * sizeof(size_t) > 1 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(size_t) >= 2 * PyLong_SHIFT)) {
                                return (size_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
                            }
                        }
                        break;
                    case 3:
                        if ((8 * sizeof(size_t) > 2 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(size_t) >= 3 * PyLong_SHIFT)) {
                                return (size_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
                            }
                        }
                        break;
                    case 4:
                        if ((8 * sizeof(size_t) > 3 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(size_t) >= 4 * PyLong_SHIFT)) {
                                return (size_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
                            }
                        }
                        break;
                }
            }
#endif
#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030C00A7
            if (unlikely(Py_SIZE(x) < 0)) {
                goto raise_neg_overflow;
            }
#else
            {
                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
                if (unlikely(result < 0))
                    return (size_t) -1;
                if (unlikely(result == 1))
                    goto raise_neg_overflow;
            }
#endif
            if ((sizeof(size_t) <= sizeof(unsigned long))) {
                __PYX_VERIFY_RETURN_INT_EXC(size_t, unsigned long, PyLong_AsUnsignedLong(x))
#ifdef HAVE_LONG_LONG
            } else if ((sizeof(size_t) <= sizeof(unsigned PY_LONG_LONG))) {
                __PYX_VERIFY_RETURN_INT_EXC(size_t, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
#endif
            }
        } else {
#if CYTHON_USE_PYLONG_INTERNALS
            if (__Pyx_PyLong_IsCompact(x)) {
                __PYX_VERIFY_RETURN_INT(size_t, __Pyx_compact_pylong, __Pyx_PyLong_CompactValue(x))
            } else {
                const digit* digits = __Pyx_PyLong_Digits(x);
                assert(__Pyx_PyLong_DigitCount(x) > 1);
                switch (__Pyx_PyLong_SignedDigitCount(x)) {
                    case -2:
                        if ((8 * sizeof(size_t) - 1 > 1 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(size_t, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(size_t) - 1 > 2 * PyLong_SHIFT)) {
                                return (size_t) (((size_t)-1)*(((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
                            }
                        }
                        break;
                    case 2:
                        if ((8 * sizeof(size_t) > 1 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(size_t) - 1 > 2 * PyLong_SHIFT)) {
                                return (size_t) ((((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
                            }
                        }
                        break;
                    case -3:
                        if ((8 * sizeof(size_t) - 1 > 2 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(size_t, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(size_t) - 1 > 3 * PyLong_SHIFT)) {
                                return (size_t) (((size_t)-1)*(((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
                            }
                        }
                        break;
                    case 3:
                        if ((8 * sizeof(size_t) > 2 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(size_t) - 1 > 3 * PyLong_SHIFT)) {
                                return (size_t) ((((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
                            }
                        }
                        break;
                    case -4:
                        if ((8 * sizeof(size_t) - 1 > 3 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(size_t, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(size_t) - 1 > 4 * PyLong_SHIFT)) {
                                return (size_t) (((size_t)-1)*(((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
                            }
                        }
                        break;
                    case 4:
                        if ((8 * sizeof(size_t) > 3 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(size_t, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(size_t) - 1 > 4 * PyLong_SHIFT)) {
                                return (size_t) ((((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0])));
                            }
                        }
                        break;
                }
            }
#endif
            if ((sizeof(size_t) <= sizeof(long))) {
                __PYX_VERIFY_RETURN_INT_EXC(size_t, long, PyLong_AsLong(x))
#ifdef HAVE_LONG_LONG
            } else if ((sizeof(size_t) <= sizeof(PY_LONG_LONG))) {
                __PYX_VERIFY_RETURN_INT_EXC(size_t, PY_LONG_LONG, PyLong_AsLongLong(x))
#endif
            }
        }
        {
            size_t val;
            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
#if PY_MAJOR_VERSION < 3
            if (likely(v) && !PyLong_Check(v)) {
                PyObject *tmp = v;
                v = PyNumber_Long(tmp);
                Py_DECREF(tmp);
            }
#endif
            if (likely(v)) {
                int ret = -1;
#if !(CYTHON_COMPILING_IN_PYPY || CYTHON_COMPILING_IN_LIMITED_API) || defined(_PyLong_AsByteArray)
                int one = 1; int is_little = (int)*(unsigned char *)&one;
                unsigned char *bytes = (unsigned char *)&val;
                ret = _PyLong_AsByteArray((PyLongObject *)v,
                                           bytes, sizeof(val),
                                           is_little, !is_unsigned);
#else
                PyObject *stepval = NULL, *mask = NULL, *shift = NULL;
                int bits, remaining_bits, is_negative = 0;
                long idigit;
                int chunk_size = (sizeof(long) < 8) ? 30 : 62;
                if (unlikely(!PyLong_CheckExact(v))) {
                    PyObject *tmp = v;
                    v = PyNumber_Long(v);
                    assert(PyLong_CheckExact(v));
                    Py_DECREF(tmp);
                    if (unlikely(!v)) return (size_t) -1;
                }
#if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
                if (Py_SIZE(x) == 0)
                    return (size_t) 0;
                is_negative = Py_SIZE(x) < 0;
#else
                {
                    int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
                    if (unlikely(result < 0))
                        return (size_t) -1;
                    is_negative = result == 1;
                }
#endif
                if (is_unsigned && unlikely(is_negative)) {
                    goto raise_neg_overflow;
                } else if (is_negative) {
                    stepval = PyNumber_Invert(v);
                    if (unlikely(!stepval))
                        return (size_t) -1;
                } else {
                    stepval = __Pyx_NewRef(v);
                }
                val = (size_t) 0;
                mask = PyLong_FromLong((1L << chunk_size) - 1); if (unlikely(!mask)) goto done;
                shift = PyLong_FromLong(chunk_size); if (unlikely(!shift)) goto done;
                for (bits = 0; bits < (int) sizeof(size_t) * 8 - chunk_size; bits += chunk_size) {
                    PyObject *tmp, *digit;
                    digit = PyNumber_And(stepval, mask);
                    if (unlikely(!digit)) goto done;
                    idigit = PyLong_AsLong(digit);
                    Py_DECREF(digit);
                    if (unlikely(idigit < 0)) goto done;
                    tmp = PyNumber_Rshift(stepval, shift);
                    if (unlikely(!tmp)) goto done;
                    Py_DECREF(stepval); stepval = tmp;
                    val |= ((size_t) idigit) << bits;
                    #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
                    if (Py_SIZE(stepval) == 0)
                        goto unpacking_done;
                    #endif
                }
                idigit = PyLong_AsLong(stepval);
                if (unlikely(idigit < 0)) goto done;
                remaining_bits = ((int) sizeof(size_t) * 8) - bits - (is_unsigned ? 0 : 1);
                if (unlikely(idigit >= (1L << remaining_bits)))
                    goto raise_overflow;
                val |= ((size_t) idigit) << bits;
            #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
            unpacking_done:
            #endif
                if (!is_unsigned) {
                    if (unlikely(val & (((size_t) 1) << (sizeof(size_t) * 8 - 1))))
                        goto raise_overflow;
                    if (is_negative)
                        val = ~val;
                }
                ret = 0;
            done:
                Py_XDECREF(shift);
                Py_XDECREF(mask);
                Py_XDECREF(stepval);
#endif
                Py_DECREF(v);
                if (likely(!ret))
                    return val;
            }
            return (size_t) -1;
        }
    } else {
        size_t val;
        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
        if (!tmp) return (size_t) -1;
        val = __Pyx_PyInt_As_size_t(tmp);
        Py_DECREF(tmp);
        return val;
    }
raise_overflow:
    PyErr_SetString(PyExc_OverflowError,
        "value too large to convert to size_t");
    return (size_t) -1;
raise_neg_overflow:
    PyErr_SetString(PyExc_OverflowError,
        "can't convert negative value to size_t");
    return (size_t) -1;
}

/* FormatTypeName */
#if CYTHON_COMPILING_IN_LIMITED_API
static __Pyx_TypeName
__Pyx_PyType_GetName(PyTypeObject* tp)
{
    PyObject *name = __Pyx_PyObject_GetAttrStr((PyObject *)tp,
                                               __pyx_n_s_name);
    if (unlikely(name == NULL) || unlikely(!PyUnicode_Check(name))) {
        PyErr_Clear();
        Py_XDECREF(name);
        name = __Pyx_NewRef(__pyx_n_s__38);
    }
    return name;
}
#endif

/* CIntToPy */
static CYTHON_INLINE PyObject* __Pyx_PyInt_From_long(long value) {
#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#endif
    const long neg_one = (long) -1, const_zero = (long) 0;
#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
#pragma GCC diagnostic pop
#endif
    const int is_unsigned = neg_one > const_zero;
    if (is_unsigned) {
        if (sizeof(long) < sizeof(long)) {
            return PyInt_FromLong((long) value);
        } else if (sizeof(long) <= sizeof(unsigned long)) {
            return PyLong_FromUnsignedLong((unsigned long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(long) <= sizeof(unsigned PY_LONG_LONG)) {
            return PyLong_FromUnsignedLongLong((unsigned PY_LONG_LONG) value);
#endif
        }
    } else {
        if (sizeof(long) <= sizeof(long)) {
            return PyInt_FromLong((long) value);
#ifdef HAVE_LONG_LONG
        } else if (sizeof(long) <= sizeof(PY_LONG_LONG)) {
            return PyLong_FromLongLong((PY_LONG_LONG) value);
#endif
        }
    }
    {
        int one = 1; int little = (int)*(unsigned char *)&one;
        unsigned char *bytes = (unsigned char *)&value;
#if !CYTHON_COMPILING_IN_LIMITED_API
        return _PyLong_FromByteArray(bytes, sizeof(long),
                                     little, !is_unsigned);
#else
        PyObject *from_bytes, *result = NULL;
        PyObject *py_bytes = NULL, *arg_tuple = NULL, *kwds = NULL, *order_str = NULL;
        from_bytes = PyObject_GetAttrString((PyObject*)&PyInt_Type, "from_bytes");
        if (!from_bytes) return NULL;
        py_bytes = PyBytes_FromStringAndSize((char*)bytes, sizeof(long));
        if (!py_bytes) goto limited_bad;
        order_str = PyUnicode_FromString(little ? "little" : "big");
        if (!order_str) goto limited_bad;
        arg_tuple = PyTuple_Pack(2, py_bytes, order_str);
        if (!arg_tuple) goto limited_bad;
        kwds = PyDict_New();
        if (!kwds) goto limited_bad;
        if (PyDict_SetItemString(kwds, "signed", __Pyx_NewRef(!is_unsigned ? Py_True : Py_False))) goto limited_bad;
        result = PyObject_Call(from_bytes, arg_tuple, kwds);
        limited_bad:
        Py_XDECREF(from_bytes);
        Py_XDECREF(py_bytes);
        Py_XDECREF(order_str);
        Py_XDECREF(arg_tuple);
        Py_XDECREF(kwds);
        return result;
#endif
    }
}

/* CIntFromPy */
static CYTHON_INLINE long __Pyx_PyInt_As_long(PyObject *x) {
#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#endif
    const long neg_one = (long) -1, const_zero = (long) 0;
#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
#pragma GCC diagnostic pop
#endif
    const int is_unsigned = neg_one > const_zero;
#if PY_MAJOR_VERSION < 3
    if (likely(PyInt_Check(x))) {
        if ((sizeof(long) < sizeof(long))) {
            __PYX_VERIFY_RETURN_INT(long, long, PyInt_AS_LONG(x))
        } else {
            long val = PyInt_AS_LONG(x);
            if (is_unsigned && unlikely(val < 0)) {
                goto raise_neg_overflow;
            }
            return (long) val;
        }
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
#if CYTHON_USE_PYLONG_INTERNALS
            if (unlikely(__Pyx_PyLong_IsNeg(x))) {
                goto raise_neg_overflow;
            } else if (__Pyx_PyLong_IsCompact(x)) {
                __PYX_VERIFY_RETURN_INT(long, __Pyx_compact_upylong, __Pyx_PyLong_CompactValueUnsigned(x))
            } else {
                const digit* digits = __Pyx_PyLong_Digits(x);
                assert(__Pyx_PyLong_DigitCount(x) > 1);
                switch (__Pyx_PyLong_DigitCount(x)) {
                    case 2:
                        if ((8 * sizeof(long) > 1 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(long) >= 2 * PyLong_SHIFT)) {
                                return (long) (((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
                            }
                        }
                        break;
                    case 3:
                        if ((8 * sizeof(long) > 2 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(long) >= 3 * PyLong_SHIFT)) {
                                return (long) (((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
                            }
                        }
                        break;
                    case 4:
                        if ((8 * sizeof(long) > 3 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(long) >= 4 * PyLong_SHIFT)) {
                                return (long) (((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0]));
                            }
                        }
                        break;
                }
            }
#endif
#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030C00A7
            if (unlikely(Py_SIZE(x) < 0)) {
                goto raise_neg_overflow;
            }
#else
            {
                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
                if (unlikely(result < 0))
                    return (long) -1;
                if (unlikely(result == 1))
                    goto raise_neg_overflow;
            }
#endif
            if ((sizeof(long) <= sizeof(unsigned long))) {
                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned long, PyLong_AsUnsignedLong(x))
#ifdef HAVE_LONG_LONG
            } else if ((sizeof(long) <= sizeof(unsigned PY_LONG_LONG))) {
                __PYX_VERIFY_RETURN_INT_EXC(long, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
#endif
            }
        } else {
#if CYTHON_USE_PYLONG_INTERNALS
            if (__Pyx_PyLong_IsCompact(x)) {
                __PYX_VERIFY_RETURN_INT(long, __Pyx_compact_pylong, __Pyx_PyLong_CompactValue(x))
            } else {
                const digit* digits = __Pyx_PyLong_Digits(x);
                assert(__Pyx_PyLong_DigitCount(x) > 1);
                switch (__Pyx_PyLong_SignedDigitCount(x)) {
                    case -2:
                        if ((8 * sizeof(long) - 1 > 1 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(long) - 1 > 2 * PyLong_SHIFT)) {
                                return (long) (((long)-1)*(((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
                            }
                        }
                        break;
                    case 2:
                        if ((8 * sizeof(long) > 1 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(long) - 1 > 2 * PyLong_SHIFT)) {
                                return (long) ((((((long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
                            }
                        }
                        break;
                    case -3:
                        if ((8 * sizeof(long) - 1 > 2 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(long) - 1 > 3 * PyLong_SHIFT)) {
                                return (long) (((long)-1)*(((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
                            }
                        }
                        break;
                    case 3:
                        if ((8 * sizeof(long) > 2 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(long) - 1 > 3 * PyLong_SHIFT)) {
                                return (long) ((((((((long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
                            }
                        }
                        break;
                    case -4:
                        if ((8 * sizeof(long) - 1 > 3 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(long, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(long) - 1 > 4 * PyLong_SHIFT)) {
                                return (long) (((long)-1)*(((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
                            }
                        }
                        break;
                    case 4:
                        if ((8 * sizeof(long) > 3 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(long, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(long) - 1 > 4 * PyLong_SHIFT)) {
                                return (long) ((((((((((long)digits[3]) << PyLong_SHIFT) | (long)digits[2]) << PyLong_SHIFT) | (long)digits[1]) << PyLong_SHIFT) | (long)digits[0])));
                            }
                        }
                        break;
                }
            }
#endif
            if ((sizeof(long) <= sizeof(long))) {
                __PYX_VERIFY_RETURN_INT_EXC(long, long, PyLong_AsLong(x))
#ifdef HAVE_LONG_LONG
            } else if ((sizeof(long) <= sizeof(PY_LONG_LONG))) {
                __PYX_VERIFY_RETURN_INT_EXC(long, PY_LONG_LONG, PyLong_AsLongLong(x))
#endif
            }
        }
        {
            long val;
            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
#if PY_MAJOR_VERSION < 3
            if (likely(v) && !PyLong_Check(v)) {
                PyObject *tmp = v;
                v = PyNumber_Long(tmp);
                Py_DECREF(tmp);
            }
#endif
            if (likely(v)) {
                int ret = -1;
#if !(CYTHON_COMPILING_IN_PYPY || CYTHON_COMPILING_IN_LIMITED_API) || defined(_PyLong_AsByteArray)
                int one = 1; int is_little = (int)*(unsigned char *)&one;
                unsigned char *bytes = (unsigned char *)&val;
                ret = _PyLong_AsByteArray((PyLongObject *)v,
                                           bytes, sizeof(val),
                                           is_little, !is_unsigned);
#else
                PyObject *stepval = NULL, *mask = NULL, *shift = NULL;
                int bits, remaining_bits, is_negative = 0;
                long idigit;
                int chunk_size = (sizeof(long) < 8) ? 30 : 62;
                if (unlikely(!PyLong_CheckExact(v))) {
                    PyObject *tmp = v;
                    v = PyNumber_Long(v);
                    assert(PyLong_CheckExact(v));
                    Py_DECREF(tmp);
                    if (unlikely(!v)) return (long) -1;
                }
#if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
                if (Py_SIZE(x) == 0)
                    return (long) 0;
                is_negative = Py_SIZE(x) < 0;
#else
                {
                    int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
                    if (unlikely(result < 0))
                        return (long) -1;
                    is_negative = result == 1;
                }
#endif
                if (is_unsigned && unlikely(is_negative)) {
                    goto raise_neg_overflow;
                } else if (is_negative) {
                    stepval = PyNumber_Invert(v);
                    if (unlikely(!stepval))
                        return (long) -1;
                } else {
                    stepval = __Pyx_NewRef(v);
                }
                val = (long) 0;
                mask = PyLong_FromLong((1L << chunk_size) - 1); if (unlikely(!mask)) goto done;
                shift = PyLong_FromLong(chunk_size); if (unlikely(!shift)) goto done;
                for (bits = 0; bits < (int) sizeof(long) * 8 - chunk_size; bits += chunk_size) {
                    PyObject *tmp, *digit;
                    digit = PyNumber_And(stepval, mask);
                    if (unlikely(!digit)) goto done;
                    idigit = PyLong_AsLong(digit);
                    Py_DECREF(digit);
                    if (unlikely(idigit < 0)) goto done;
                    tmp = PyNumber_Rshift(stepval, shift);
                    if (unlikely(!tmp)) goto done;
                    Py_DECREF(stepval); stepval = tmp;
                    val |= ((long) idigit) << bits;
                    #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
                    if (Py_SIZE(stepval) == 0)
                        goto unpacking_done;
                    #endif
                }
                idigit = PyLong_AsLong(stepval);
                if (unlikely(idigit < 0)) goto done;
                remaining_bits = ((int) sizeof(long) * 8) - bits - (is_unsigned ? 0 : 1);
                if (unlikely(idigit >= (1L << remaining_bits)))
                    goto raise_overflow;
                val |= ((long) idigit) << bits;
            #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
            unpacking_done:
            #endif
                if (!is_unsigned) {
                    if (unlikely(val & (((long) 1) << (sizeof(long) * 8 - 1))))
                        goto raise_overflow;
                    if (is_negative)
                        val = ~val;
                }
                ret = 0;
            done:
                Py_XDECREF(shift);
                Py_XDECREF(mask);
                Py_XDECREF(stepval);
#endif
                Py_DECREF(v);
                if (likely(!ret))
                    return val;
            }
            return (long) -1;
        }
    } else {
        long val;
        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
        if (!tmp) return (long) -1;
        val = __Pyx_PyInt_As_long(tmp);
        Py_DECREF(tmp);
        return val;
    }
raise_overflow:
    PyErr_SetString(PyExc_OverflowError,
        "value too large to convert to long");
    return (long) -1;
raise_neg_overflow:
    PyErr_SetString(PyExc_OverflowError,
        "can't convert negative value to long");
    return (long) -1;
}

/* CIntFromPy */
static CYTHON_INLINE int __Pyx_PyInt_As_int(PyObject *x) {
#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wconversion"
#endif
    const int neg_one = (int) -1, const_zero = (int) 0;
#ifdef __Pyx_HAS_GCC_DIAGNOSTIC
#pragma GCC diagnostic pop
#endif
    const int is_unsigned = neg_one > const_zero;
#if PY_MAJOR_VERSION < 3
    if (likely(PyInt_Check(x))) {
        if ((sizeof(int) < sizeof(long))) {
            __PYX_VERIFY_RETURN_INT(int, long, PyInt_AS_LONG(x))
        } else {
            long val = PyInt_AS_LONG(x);
            if (is_unsigned && unlikely(val < 0)) {
                goto raise_neg_overflow;
            }
            return (int) val;
        }
    } else
#endif
    if (likely(PyLong_Check(x))) {
        if (is_unsigned) {
#if CYTHON_USE_PYLONG_INTERNALS
            if (unlikely(__Pyx_PyLong_IsNeg(x))) {
                goto raise_neg_overflow;
            } else if (__Pyx_PyLong_IsCompact(x)) {
                __PYX_VERIFY_RETURN_INT(int, __Pyx_compact_upylong, __Pyx_PyLong_CompactValueUnsigned(x))
            } else {
                const digit* digits = __Pyx_PyLong_Digits(x);
                assert(__Pyx_PyLong_DigitCount(x) > 1);
                switch (__Pyx_PyLong_DigitCount(x)) {
                    case 2:
                        if ((8 * sizeof(int) > 1 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(int) >= 2 * PyLong_SHIFT)) {
                                return (int) (((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
                            }
                        }
                        break;
                    case 3:
                        if ((8 * sizeof(int) > 2 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(int) >= 3 * PyLong_SHIFT)) {
                                return (int) (((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
                            }
                        }
                        break;
                    case 4:
                        if ((8 * sizeof(int) > 3 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(int) >= 4 * PyLong_SHIFT)) {
                                return (int) (((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0]));
                            }
                        }
                        break;
                }
            }
#endif
#if CYTHON_COMPILING_IN_CPYTHON && PY_VERSION_HEX < 0x030C00A7
            if (unlikely(Py_SIZE(x) < 0)) {
                goto raise_neg_overflow;
            }
#else
            {
                int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
                if (unlikely(result < 0))
                    return (int) -1;
                if (unlikely(result == 1))
                    goto raise_neg_overflow;
            }
#endif
            if ((sizeof(int) <= sizeof(unsigned long))) {
                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned long, PyLong_AsUnsignedLong(x))
#ifdef HAVE_LONG_LONG
            } else if ((sizeof(int) <= sizeof(unsigned PY_LONG_LONG))) {
                __PYX_VERIFY_RETURN_INT_EXC(int, unsigned PY_LONG_LONG, PyLong_AsUnsignedLongLong(x))
#endif
            }
        } else {
#if CYTHON_USE_PYLONG_INTERNALS
            if (__Pyx_PyLong_IsCompact(x)) {
                __PYX_VERIFY_RETURN_INT(int, __Pyx_compact_pylong, __Pyx_PyLong_CompactValue(x))
            } else {
                const digit* digits = __Pyx_PyLong_Digits(x);
                assert(__Pyx_PyLong_DigitCount(x) > 1);
                switch (__Pyx_PyLong_SignedDigitCount(x)) {
                    case -2:
                        if ((8 * sizeof(int) - 1 > 1 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(int) - 1 > 2 * PyLong_SHIFT)) {
                                return (int) (((int)-1)*(((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
                            }
                        }
                        break;
                    case 2:
                        if ((8 * sizeof(int) > 1 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 2 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(int) - 1 > 2 * PyLong_SHIFT)) {
                                return (int) ((((((int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
                            }
                        }
                        break;
                    case -3:
                        if ((8 * sizeof(int) - 1 > 2 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(int) - 1 > 3 * PyLong_SHIFT)) {
                                return (int) (((int)-1)*(((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
                            }
                        }
                        break;
                    case 3:
                        if ((8 * sizeof(int) > 2 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 3 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(int) - 1 > 3 * PyLong_SHIFT)) {
                                return (int) ((((((((int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
                            }
                        }
                        break;
                    case -4:
                        if ((8 * sizeof(int) - 1 > 3 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(int, long, -(long) (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(int) - 1 > 4 * PyLong_SHIFT)) {
                                return (int) (((int)-1)*(((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
                            }
                        }
                        break;
                    case 4:
                        if ((8 * sizeof(int) > 3 * PyLong_SHIFT)) {
                            if ((8 * sizeof(unsigned long) > 4 * PyLong_SHIFT)) {
                                __PYX_VERIFY_RETURN_INT(int, unsigned long, (((((((((unsigned long)digits[3]) << PyLong_SHIFT) | (unsigned long)digits[2]) << PyLong_SHIFT) | (unsigned long)digits[1]) << PyLong_SHIFT) | (unsigned long)digits[0])))
                            } else if ((8 * sizeof(int) - 1 > 4 * PyLong_SHIFT)) {
                                return (int) ((((((((((int)digits[3]) << PyLong_SHIFT) | (int)digits[2]) << PyLong_SHIFT) | (int)digits[1]) << PyLong_SHIFT) | (int)digits[0])));
                            }
                        }
                        break;
                }
            }
#endif
            if ((sizeof(int) <= sizeof(long))) {
                __PYX_VERIFY_RETURN_INT_EXC(int, long, PyLong_AsLong(x))
#ifdef HAVE_LONG_LONG
            } else if ((sizeof(int) <= sizeof(PY_LONG_LONG))) {
                __PYX_VERIFY_RETURN_INT_EXC(int, PY_LONG_LONG, PyLong_AsLongLong(x))
#endif
            }
        }
        {
            int val;
            PyObject *v = __Pyx_PyNumber_IntOrLong(x);
#if PY_MAJOR_VERSION < 3
            if (likely(v) && !PyLong_Check(v)) {
                PyObject *tmp = v;
                v = PyNumber_Long(tmp);
                Py_DECREF(tmp);
            }
#endif
            if (likely(v)) {
                int ret = -1;
#if !(CYTHON_COMPILING_IN_PYPY || CYTHON_COMPILING_IN_LIMITED_API) || defined(_PyLong_AsByteArray)
                int one = 1; int is_little = (int)*(unsigned char *)&one;
                unsigned char *bytes = (unsigned char *)&val;
                ret = _PyLong_AsByteArray((PyLongObject *)v,
                                           bytes, sizeof(val),
                                           is_little, !is_unsigned);
#else
                PyObject *stepval = NULL, *mask = NULL, *shift = NULL;
                int bits, remaining_bits, is_negative = 0;
                long idigit;
                int chunk_size = (sizeof(long) < 8) ? 30 : 62;
                if (unlikely(!PyLong_CheckExact(v))) {
                    PyObject *tmp = v;
                    v = PyNumber_Long(v);
                    assert(PyLong_CheckExact(v));
                    Py_DECREF(tmp);
                    if (unlikely(!v)) return (int) -1;
                }
#if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
                if (Py_SIZE(x) == 0)
                    return (int) 0;
                is_negative = Py_SIZE(x) < 0;
#else
                {
                    int result = PyObject_RichCompareBool(x, Py_False, Py_LT);
                    if (unlikely(result < 0))
                        return (int) -1;
                    is_negative = result == 1;
                }
#endif
                if (is_unsigned && unlikely(is_negative)) {
                    goto raise_neg_overflow;
                } else if (is_negative) {
                    stepval = PyNumber_Invert(v);
                    if (unlikely(!stepval))
                        return (int) -1;
                } else {
                    stepval = __Pyx_NewRef(v);
                }
                val = (int) 0;
                mask = PyLong_FromLong((1L << chunk_size) - 1); if (unlikely(!mask)) goto done;
                shift = PyLong_FromLong(chunk_size); if (unlikely(!shift)) goto done;
                for (bits = 0; bits < (int) sizeof(int) * 8 - chunk_size; bits += chunk_size) {
                    PyObject *tmp, *digit;
                    digit = PyNumber_And(stepval, mask);
                    if (unlikely(!digit)) goto done;
                    idigit = PyLong_AsLong(digit);
                    Py_DECREF(digit);
                    if (unlikely(idigit < 0)) goto done;
                    tmp = PyNumber_Rshift(stepval, shift);
                    if (unlikely(!tmp)) goto done;
                    Py_DECREF(stepval); stepval = tmp;
                    val |= ((int) idigit) << bits;
                    #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
                    if (Py_SIZE(stepval) == 0)
                        goto unpacking_done;
                    #endif
                }
                idigit = PyLong_AsLong(stepval);
                if (unlikely(idigit < 0)) goto done;
                remaining_bits = ((int) sizeof(int) * 8) - bits - (is_unsigned ? 0 : 1);
                if (unlikely(idigit >= (1L << remaining_bits)))
                    goto raise_overflow;
                val |= ((int) idigit) << bits;
            #if CYTHON_COMPILING_IN_LIMITED_API && PY_VERSION_HEX < 0x030B0000
            unpacking_done:
            #endif
                if (!is_unsigned) {
                    if (unlikely(val & (((int) 1) << (sizeof(int) * 8 - 1))))
                        goto raise_overflow;
                    if (is_negative)
                        val = ~val;
                }
                ret = 0;
            done:
                Py_XDECREF(shift);
                Py_XDECREF(mask);
                Py_XDECREF(stepval);
#endif
                Py_DECREF(v);
                if (likely(!ret))
                    return val;
            }
            return (int) -1;
        }
    } else {
        int val;
        PyObject *tmp = __Pyx_PyNumber_IntOrLong(x);
        if (!tmp) return (int) -1;
        val = __Pyx_PyInt_As_int(tmp);
        Py_DECREF(tmp);
        return val;
    }
raise_overflow:
    PyErr_SetString(PyExc_OverflowError,
        "value too large to convert to int");
    return (int) -1;
raise_neg_overflow:
    PyErr_SetString(PyExc_OverflowError,
        "can't convert negative value to int");
    return (int) -1;
}

/* FastTypeChecks */
#if CYTHON_COMPILING_IN_CPYTHON
static int __Pyx_InBases(PyTypeObject *a, PyTypeObject *b) {
    while (a) {
        a = __Pyx_PyType_GetSlot(a, tp_base, PyTypeObject*);
        if (a == b)
            return 1;
    }
    return b == &PyBaseObject_Type;
}
static CYTHON_INLINE int __Pyx_IsSubtype(PyTypeObject *a, PyTypeObject *b) {
    PyObject *mro;
    if (a == b) return 1;
    mro = a->tp_mro;
    if (likely(mro)) {
        Py_ssize_t i, n;
        n = PyTuple_GET_SIZE(mro);
        for (i = 0; i < n; i++) {
            if (PyTuple_GET_ITEM(mro, i) == (PyObject *)b)
                return 1;
        }
        return 0;
    }
    return __Pyx_InBases(a, b);
}
static CYTHON_INLINE int __Pyx_IsAnySubtype2(PyTypeObject *cls, PyTypeObject *a, PyTypeObject *b) {
    PyObject *mro;
    if (cls == a || cls == b) return 1;
    mro = cls->tp_mro;
    if (likely(mro)) {
        Py_ssize_t i, n;
        n = PyTuple_GET_SIZE(mro);
        for (i = 0; i < n; i++) {
            PyObject *base = PyTuple_GET_ITEM(mro, i);
            if (base == (PyObject *)a || base == (PyObject *)b)
                return 1;
        }
        return 0;
    }
    return __Pyx_InBases(cls, a) || __Pyx_InBases(cls, b);
}
#if PY_MAJOR_VERSION == 2
static int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject* exc_type2) {
    PyObject *exception, *value, *tb;
    int res;
    __Pyx_PyThreadState_declare
    __Pyx_PyThreadState_assign
    __Pyx_ErrFetch(&exception, &value, &tb);
    res = exc_type1 ? PyObject_IsSubclass(err, exc_type1) : 0;
    if (unlikely(res == -1)) {
        PyErr_WriteUnraisable(err);
        res = 0;
    }
    if (!res) {
        res = PyObject_IsSubclass(err, exc_type2);
        if (unlikely(res == -1)) {
            PyErr_WriteUnraisable(err);
            res = 0;
        }
    }
    __Pyx_ErrRestore(exception, value, tb);
    return res;
}
#else
static CYTHON_INLINE int __Pyx_inner_PyErr_GivenExceptionMatches2(PyObject *err, PyObject* exc_type1, PyObject *exc_type2) {
    if (exc_type1) {
        return __Pyx_IsAnySubtype2((PyTypeObject*)err, (PyTypeObject*)exc_type1, (PyTypeObject*)exc_type2);
    } else {
        return __Pyx_IsSubtype((PyTypeObject*)err, (PyTypeObject*)exc_type2);
    }
}
#endif
static int __Pyx_PyErr_GivenExceptionMatchesTuple(PyObject *exc_type, PyObject *tuple) {
    Py_ssize_t i, n;
    assert(PyExceptionClass_Check(exc_type));
    n = PyTuple_GET_SIZE(tuple);
#if PY_MAJOR_VERSION >= 3
    for (i=0; i<n; i++) {
        if (exc_type == PyTuple_GET_ITEM(tuple, i)) return 1;
    }
#endif
    for (i=0; i<n; i++) {
        PyObject *t = PyTuple_GET_ITEM(tuple, i);
        #if PY_MAJOR_VERSION < 3
        if (likely(exc_type == t)) return 1;
        #endif
        if (likely(PyExceptionClass_Check(t))) {
            if (__Pyx_inner_PyErr_GivenExceptionMatches2(exc_type, NULL, t)) return 1;
        } else {
        }
    }
    return 0;
}
static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches(PyObject *err, PyObject* exc_type) {
    if (likely(err == exc_type)) return 1;
    if (likely(PyExceptionClass_Check(err))) {
        if (likely(PyExceptionClass_Check(exc_type))) {
            return __Pyx_inner_PyErr_GivenExceptionMatches2(err, NULL, exc_type);
        } else if (likely(PyTuple_Check(exc_type))) {
            return __Pyx_PyErr_GivenExceptionMatchesTuple(err, exc_type);
        } else {
        }
    }
    return PyErr_GivenExceptionMatches(err, exc_type);
}
static CYTHON_INLINE int __Pyx_PyErr_GivenExceptionMatches2(PyObject *err, PyObject *exc_type1, PyObject *exc_type2) {
    assert(PyExceptionClass_Check(exc_type1));
    assert(PyExceptionClass_Check(exc_type2));
    if (likely(err == exc_type1 || err == exc_type2)) return 1;
    if (likely(PyExceptionClass_Check(err))) {
        return __Pyx_inner_PyErr_GivenExceptionMatches2(err, exc_type1, exc_type2);
    }
    return (PyErr_GivenExceptionMatches(err, exc_type1) || PyErr_GivenExceptionMatches(err, exc_type2));
}
#endif

/* CheckBinaryVersion */
static unsigned long __Pyx_get_runtime_version() {
#if __PYX_LIMITED_VERSION_HEX >= 0x030B00A4
    return Py_Version & ~0xFFUL;
#else
    const char* rt_version = Py_GetVersion();
    unsigned long version = 0;
    unsigned long factor = 0x01000000UL;
    unsigned int digit = 0;
    int i = 0;
    while (factor) {
        while ('0' <= rt_version[i] && rt_version[i] <= '9') {
            digit = digit * 10 + (unsigned int) (rt_version[i] - '0');
            ++i;
        }
        version += factor * digit;
        if (rt_version[i] != '.')
            break;
        digit = 0;
        factor >>= 8;
        ++i;
    }
    return version;
#endif
}
static int __Pyx_check_binary_version(unsigned long ct_version, unsigned long rt_version, int allow_newer) {
    const unsigned long MAJOR_MINOR = 0xFFFF0000UL;
    if ((rt_version & MAJOR_MINOR) == (ct_version & MAJOR_MINOR))
        return 0;
    if (likely(allow_newer && (rt_version & MAJOR_MINOR) > (ct_version & MAJOR_MINOR)))
        return 1;
    {
        char message[200];
        PyOS_snprintf(message, sizeof(message),
                      "compile time Python version %d.%d "
                      "of module '%.100s' "
                      "%s "
                      "runtime version %d.%d",
                       (int) (ct_version >> 24), (int) ((ct_version >> 16) & 0xFF),
                       __Pyx_MODULE_NAME,
                       (allow_newer) ? "was newer than" : "does not match",
                       (int) (rt_version >> 24), (int) ((rt_version >> 16) & 0xFF)
       );
        return PyErr_WarnEx(NULL, message, 1);
    }
}

/* FunctionImport */
#ifndef __PYX_HAVE_RT_ImportFunction_3_0_3
#define __PYX_HAVE_RT_ImportFunction_3_0_3
static int __Pyx_ImportFunction_3_0_3(PyObject *module, const char *funcname, void (**f)(void), const char *sig) {
    PyObject *d = 0;
    PyObject *cobj = 0;
    union {
        void (*fp)(void);
        void *p;
    } tmp;
    d = PyObject_GetAttrString(module, (char *)"__pyx_capi__");
    if (!d)
        goto bad;
    cobj = PyDict_GetItemString(d, funcname);
    if (!cobj) {
        PyErr_Format(PyExc_ImportError,
            "%.200s does not export expected C function %.200s",
                PyModule_GetName(module), funcname);
        goto bad;
    }
    if (!PyCapsule_IsValid(cobj, sig)) {
        PyErr_Format(PyExc_TypeError,
            "C function %.200s.%.200s has wrong signature (expected %.500s, got %.500s)",
             PyModule_GetName(module), funcname, sig, PyCapsule_GetName(cobj));
        goto bad;
    }
    tmp.p = PyCapsule_GetPointer(cobj, sig);
    *f = tmp.fp;
    if (!(*f))
        goto bad;
    Py_DECREF(d);
    return 0;
bad:
    Py_XDECREF(d);
    return -1;
}
#endif

/* InitStrings */
#if PY_MAJOR_VERSION >= 3
static int __Pyx_InitString(__Pyx_StringTabEntry t, PyObject **str) {
    if (t.is_unicode | t.is_str) {
        if (t.intern) {
            *str = PyUnicode_InternFromString(t.s);
        } else if (t.encoding) {
            *str = PyUnicode_Decode(t.s, t.n - 1, t.encoding, NULL);
        } else {
            *str = PyUnicode_FromStringAndSize(t.s, t.n - 1);
        }
    } else {
        *str = PyBytes_FromStringAndSize(t.s, t.n - 1);
    }
    if (!*str)
        return -1;
    if (PyObject_Hash(*str) == -1)
        return -1;
    return 0;
}
#endif
static int __Pyx_InitStrings(__Pyx_StringTabEntry *t) {
    while (t->p) {
        #if PY_MAJOR_VERSION >= 3
        __Pyx_InitString(*t, t->p);
        #else
        if (t->is_unicode) {
            *t->p = PyUnicode_DecodeUTF8(t->s, t->n - 1, NULL);
        } else if (t->intern) {
            *t->p = PyString_InternFromString(t->s);
        } else {
            *t->p = PyString_FromStringAndSize(t->s, t->n - 1);
        }
        if (!*t->p)
            return -1;
        if (PyObject_Hash(*t->p) == -1)
            return -1;
        #endif
        ++t;
    }
    return 0;
}

#include <string.h>
static CYTHON_INLINE Py_ssize_t __Pyx_ssize_strlen(const char *s) {
    size_t len = strlen(s);
    if (unlikely(len > (size_t) PY_SSIZE_T_MAX)) {
        PyErr_SetString(PyExc_OverflowError, "byte string is too long");
        return -1;
    }
    return (Py_ssize_t) len;
}
static CYTHON_INLINE PyObject* __Pyx_PyUnicode_FromString(const char* c_str) {
    Py_ssize_t len = __Pyx_ssize_strlen(c_str);
    if (unlikely(len < 0)) return NULL;
    return __Pyx_PyUnicode_FromStringAndSize(c_str, len);
}
static CYTHON_INLINE PyObject* __Pyx_PyByteArray_FromString(const char* c_str) {
    Py_ssize_t len = __Pyx_ssize_strlen(c_str);
    if (unlikely(len < 0)) return NULL;
    return PyByteArray_FromStringAndSize(c_str, len);
}
static CYTHON_INLINE const char* __Pyx_PyObject_AsString(PyObject* o) {
    Py_ssize_t ignore;
    return __Pyx_PyObject_AsStringAndSize(o, &ignore);
}
#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
#if !CYTHON_PEP393_ENABLED
static const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
    char* defenc_c;
    PyObject* defenc = _PyUnicode_AsDefaultEncodedString(o, NULL);
    if (!defenc) return NULL;
    defenc_c = PyBytes_AS_STRING(defenc);
#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
    {
        char* end = defenc_c + PyBytes_GET_SIZE(defenc);
        char* c;
        for (c = defenc_c; c < end; c++) {
            if ((unsigned char) (*c) >= 128) {
                PyUnicode_AsASCIIString(o);
                return NULL;
            }
        }
    }
#endif
    *length = PyBytes_GET_SIZE(defenc);
    return defenc_c;
}
#else
static CYTHON_INLINE const char* __Pyx_PyUnicode_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
    if (unlikely(__Pyx_PyUnicode_READY(o) == -1)) return NULL;
#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
    if (likely(PyUnicode_IS_ASCII(o))) {
        *length = PyUnicode_GET_LENGTH(o);
        return PyUnicode_AsUTF8(o);
    } else {
        PyUnicode_AsASCIIString(o);
        return NULL;
    }
#else
    return PyUnicode_AsUTF8AndSize(o, length);
#endif
}
#endif
#endif
static CYTHON_INLINE const char* __Pyx_PyObject_AsStringAndSize(PyObject* o, Py_ssize_t *length) {
#if __PYX_DEFAULT_STRING_ENCODING_IS_ASCII || __PYX_DEFAULT_STRING_ENCODING_IS_DEFAULT
    if (
#if PY_MAJOR_VERSION < 3 && __PYX_DEFAULT_STRING_ENCODING_IS_ASCII
            __Pyx_sys_getdefaultencoding_not_ascii &&
#endif
            PyUnicode_Check(o)) {
        return __Pyx_PyUnicode_AsStringAndSize(o, length);
    } else
#endif
#if (!CYTHON_COMPILING_IN_PYPY && !CYTHON_COMPILING_IN_LIMITED_API) || (defined(PyByteArray_AS_STRING) && defined(PyByteArray_GET_SIZE))
    if (PyByteArray_Check(o)) {
        *length = PyByteArray_GET_SIZE(o);
        return PyByteArray_AS_STRING(o);
    } else
#endif
    {
        char* result;
        int r = PyBytes_AsStringAndSize(o, &result, length);
        if (unlikely(r < 0)) {
            return NULL;
        } else {
            return result;
        }
    }
}
static CYTHON_INLINE int __Pyx_PyObject_IsTrue(PyObject* x) {
   int is_true = x == Py_True;
   if (is_true | (x == Py_False) | (x == Py_None)) return is_true;
   else return PyObject_IsTrue(x);
}
static CYTHON_INLINE int __Pyx_PyObject_IsTrueAndDecref(PyObject* x) {
    int retval;
    if (unlikely(!x)) return -1;
    retval = __Pyx_PyObject_IsTrue(x);
    Py_DECREF(x);
    return retval;
}
static PyObject* __Pyx_PyNumber_IntOrLongWrongResultType(PyObject* result, const char* type_name) {
    __Pyx_TypeName result_type_name = __Pyx_PyType_GetName(Py_TYPE(result));
#if PY_MAJOR_VERSION >= 3
    if (PyLong_Check(result)) {
        if (PyErr_WarnFormat(PyExc_DeprecationWarning, 1,
                "__int__ returned non-int (type " __Pyx_FMT_TYPENAME ").  "
                "The ability to return an instance of a strict subclass of int is deprecated, "
                "and may be removed in a future version of Python.",
                result_type_name)) {
            __Pyx_DECREF_TypeName(result_type_name);
            Py_DECREF(result);
            return NULL;
        }
        __Pyx_DECREF_TypeName(result_type_name);
        return result;
    }
#endif
    PyErr_Format(PyExc_TypeError,
                 "__%.4s__ returned non-%.4s (type " __Pyx_FMT_TYPENAME ")",
                 type_name, type_name, result_type_name);
    __Pyx_DECREF_TypeName(result_type_name);
    Py_DECREF(result);
    return NULL;
}
static CYTHON_INLINE PyObject* __Pyx_PyNumber_IntOrLong(PyObject* x) {
#if CYTHON_USE_TYPE_SLOTS
  PyNumberMethods *m;
#endif
  const char *name = NULL;
  PyObject *res = NULL;
#if PY_MAJOR_VERSION < 3
  if (likely(PyInt_Check(x) || PyLong_Check(x)))
#else
  if (likely(PyLong_Check(x)))
#endif
    return __Pyx_NewRef(x);
#if CYTHON_USE_TYPE_SLOTS
  m = Py_TYPE(x)->tp_as_number;
  #if PY_MAJOR_VERSION < 3
  if (m && m->nb_int) {
    name = "int";
    res = m->nb_int(x);
  }
  else if (m && m->nb_long) {
    name = "long";
    res = m->nb_long(x);
  }
  #else
  if (likely(m && m->nb_int)) {
    name = "int";
    res = m->nb_int(x);
  }
  #endif
#else
  if (!PyBytes_CheckExact(x) && !PyUnicode_CheckExact(x)) {
    res = PyNumber_Int(x);
  }
#endif
  if (likely(res)) {
#if PY_MAJOR_VERSION < 3
    if (unlikely(!PyInt_Check(res) && !PyLong_Check(res))) {
#else
    if (unlikely(!PyLong_CheckExact(res))) {
#endif
        return __Pyx_PyNumber_IntOrLongWrongResultType(res, name);
    }
  }
  else if (!PyErr_Occurred()) {
    PyErr_SetString(PyExc_TypeError,
                    "an integer is required");
  }
  return res;
}
static CYTHON_INLINE Py_ssize_t __Pyx_PyIndex_AsSsize_t(PyObject* b) {
  Py_ssize_t ival;
  PyObject *x;
#if PY_MAJOR_VERSION < 3
  if (likely(PyInt_CheckExact(b))) {
    if (sizeof(Py_ssize_t) >= sizeof(long))
        return PyInt_AS_LONG(b);
    else
        return PyInt_AsSsize_t(b);
  }
#endif
  if (likely(PyLong_CheckExact(b))) {
    #if CYTHON_USE_PYLONG_INTERNALS
    if (likely(__Pyx_PyLong_IsCompact(b))) {
        return __Pyx_PyLong_CompactValue(b);
    } else {
      const digit* digits = __Pyx_PyLong_Digits(b);
      const Py_ssize_t size = __Pyx_PyLong_SignedDigitCount(b);
      switch (size) {
         case 2:
           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
             return (Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
           }
           break;
         case -2:
           if (8 * sizeof(Py_ssize_t) > 2 * PyLong_SHIFT) {
             return -(Py_ssize_t) (((((size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
           }
           break;
         case 3:
           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
             return (Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
           }
           break;
         case -3:
           if (8 * sizeof(Py_ssize_t) > 3 * PyLong_SHIFT) {
             return -(Py_ssize_t) (((((((size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
           }
           break;
         case 4:
           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
             return (Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
           }
           break;
         case -4:
           if (8 * sizeof(Py_ssize_t) > 4 * PyLong_SHIFT) {
             return -(Py_ssize_t) (((((((((size_t)digits[3]) << PyLong_SHIFT) | (size_t)digits[2]) << PyLong_SHIFT) | (size_t)digits[1]) << PyLong_SHIFT) | (size_t)digits[0]));
           }
           break;
      }
    }
    #endif
    return PyLong_AsSsize_t(b);
  }
  x = PyNumber_Index(b);
  if (!x) return -1;
  ival = PyInt_AsSsize_t(x);
  Py_DECREF(x);
  return ival;
}
static CYTHON_INLINE Py_hash_t __Pyx_PyIndex_AsHash_t(PyObject* o) {
  if (sizeof(Py_hash_t) == sizeof(Py_ssize_t)) {
    return (Py_hash_t) __Pyx_PyIndex_AsSsize_t(o);
#if PY_MAJOR_VERSION < 3
  } else if (likely(PyInt_CheckExact(o))) {
    return PyInt_AS_LONG(o);
#endif
  } else {
    Py_ssize_t ival;
    PyObject *x;
    x = PyNumber_Index(o);
    if (!x) return -1;
    ival = PyInt_AsLong(x);
    Py_DECREF(x);
    return ival;
  }
}
static CYTHON_INLINE PyObject * __Pyx_PyBool_FromLong(long b) {
  return b ? __Pyx_NewRef(Py_True) : __Pyx_NewRef(Py_False);
}
static CYTHON_INLINE PyObject * __Pyx_PyInt_FromSize_t(size_t ival) {
    return PyInt_FromSize_t(ival);
}


/* #### Code section: utility_code_pragmas_end ### */
#ifdef _MSC_VER
#pragma warning( pop )
#endif



/* #### Code section: end ### */
#endif /* Py_PYTHON_H */
