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import pytest
from hypothesis import given
from hypothesis.extra.array_api import make_strategies_namespace
from numpy import array_api as xp
xps = make_strategies_namespace(xp)
@pytest.mark.parametrize("func", [xp.unique_all, xp.unique_inverse])
@given(xps.arrays(dtype=xps.scalar_dtypes(), shape=xps.array_shapes()))
def test_inverse_indices_shape(func, x):
"""
Inverse indices share shape of input array
See https://github.com/numpy/numpy/issues/20638
"""
out = func(x)
assert out.inverse_indices.shape == x.shape
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