"""A module to manipulate symbolic objects with indices including tensors

"""
from .array import (Array, DenseNDimArray, ImmutableDenseNDimArray,
                    ImmutableSparseNDimArray, MutableDenseNDimArray,
                    MutableSparseNDimArray, NDimArray, SparseNDimArray,
                    derive_by_array, permutedims, tensorcontraction,
                    tensorproduct)
from .index_methods import get_contraction_structure, get_indices
from .indexed import Idx, Indexed, IndexedBase
