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from typing import Union, Tuple, Any
import numpy as np
# NOTE: `_StrLike` and `_BytesLike` are pointless, as `np.str_` and `np.bytes_`
# are already subclasses of their builtin counterpart
_CharLike = Union[str, bytes]
# The 6 `<X>Like` type-aliases below represent all scalars that can be
# coerced into `<X>` (with the casting rule `same_kind`)
_BoolLike = Union[bool, np.bool_]
_UIntLike = Union[_BoolLike, np.unsignedinteger]
_IntLike = Union[_BoolLike, int, np.integer]
_FloatLike = Union[_IntLike, float, np.floating]
_ComplexLike = Union[_FloatLike, complex, np.complexfloating]
_TD64Like = Union[_IntLike, np.timedelta64]
_NumberLike = Union[int, float, complex, np.number, np.bool_]
_ScalarLike = Union[
int,
float,
complex,
str,
bytes,
np.generic,
]
# `_VoidLike` is technically not a scalar, but it's close enough
_VoidLike = Union[Tuple[Any, ...], np.void]
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