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# BSD 3-Clause License; see https://github.com/scikit-hep/awkward/blob/main/LICENSE
from __future__ import annotations
import numpy as np
import pytest # noqa: F401
import awkward as ak
def test():
layout = ak.contents.IndexedArray(
ak.index.Index64(np.array([3, 1, 0, 2])),
ak.contents.ListOffsetArray(
ak.index.Index64(np.array([0, 3, 6, 9, 12])),
ak.contents.NumpyArray(np.array([0, 0, 0, 1, 1, 1, 2, 2, 3, 3, 3, 3])),
),
)
assert ak.operations.unflatten(
layout,
ak.operations.flatten(ak.operations.run_lengths(layout)),
axis=1,
).to_list() == [[[3, 3, 3]], [[1, 1, 1]], [[0, 0, 0]], [[2, 2], [3]]]
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