"""
binary/ASCII conversions. See: https://docs.micropython.org/en/v1.18/library/binascii.html

|see_cpython_module| :mod:`python:binascii` https://docs.python.org/3/library/binascii.html .

This module implements conversions between binary data and various
encodings of it in ASCII form (in both directions).
"""
from typing import Callable, Coroutine, Dict, Generator, IO, Iterator, List, NoReturn, Optional, Tuple, Union, Any

def a2b_base64(data) -> bytes:
    """
    Decode base64-encoded data, ignoring invalid characters in the input.
    Conforms to `RFC 2045 s.6.8 <https://tools.ietf.org/html/rfc2045#section-6.8>`_.
    Returns a bytes object.
    """
    ...
def b2a_base64(data) -> bytes:
    """
    Encode binary data in base64 format, as in `RFC 3548
    <https://tools.ietf.org/html/rfc3548.html>`_. Returns the encoded data
    followed by a newline character, as a bytes object.
    """
    ...
def crc32(*args, **kwargs) -> Any: ...
def hexlify(data, sep: Optional[Any] = None) -> bytes:
    """
    Convert the bytes in the *data* object to a hexadecimal representation.
    Returns a bytes object.

    If the additional argument *sep* is supplied it is used as a separator
    between hexadecimal values.
    """
    ...
def unhexlify(data) -> bytes:
    """
    Convert hexadecimal data to binary representation. Returns bytes string.
    (i.e. inverse of hexlify)
    """
    ...
