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from cupy.random import _generator
def shuffle(a):
"""Shuffles an array.
Args:
a (cupy.ndarray): The array to be shuffled.
.. seealso:: :meth:`numpy.random.shuffle`
"""
rs = _generator.get_random_state()
return rs.shuffle(a)
def permutation(a):
"""Returns a permuted range or a permutation of an array.
Args:
a (int or cupy.ndarray): The range or the array to be shuffled.
Returns:
cupy.ndarray: If `a` is an integer, it is permutation range between 0
and `a` - 1.
Otherwise, it is a permutation of `a`.
.. seealso:: :meth:`numpy.random.permutation`
"""
rs = _generator.get_random_state()
return rs.permutation(a)
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