import cv2.mat_wrapper
import numpy
import sys
import typing

if numpy.lib.NumpyVersion(numpy.__version__) > "1.20.0" and sys.version_info >= (3, 9):
    NumPyArrayGeneric = numpy.ndarray[typing.Any, numpy.dtype[numpy.generic]]
else:
    NumPyArrayGeneric = numpy.ndarray


if numpy.lib.NumpyVersion(numpy.__version__) > "1.20.0" and sys.version_info >= (3, 9):
    NumPyArrayFloat32 = numpy.ndarray[typing.Any, numpy.dtype[numpy.float32]]
else:
    NumPyArrayFloat32 = numpy.ndarray


if numpy.lib.NumpyVersion(numpy.__version__) > "1.20.0" and sys.version_info >= (3, 9):
    NumPyArrayFloat64 = numpy.ndarray[typing.Any, numpy.dtype[numpy.float64]]
else:
    NumPyArrayFloat64 = numpy.ndarray

MatLike = typing.Union[cv2.mat_wrapper.Mat, NumPyArrayGeneric]
Matx33f = NumPyArrayFloat32
"""NDArray(shape=(3, 3), dtype=numpy.float32)"""
Matx33d = NumPyArrayFloat64
"""NDArray(shape=(3, 3), dtype=numpy.float64)"""
Matx44f = NumPyArrayFloat32
"""NDArray(shape=(4, 4), dtype=numpy.float32)"""
Matx44d = NumPyArrayFloat64
"""NDArray(shape=(4, 4), dtype=numpy.float64)"""