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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():
left = ak.contents.NumpyArray(
np.arange(10), parameters={"left": "leftie", "some": "A"}
)
right = ak.contents.NumpyArray(
np.arange(10), parameters={"right": "rightie", "some": "B"}
)
array = ak.contents.UnionArray.simplified(
ak.index.Index8(np.array([0, 0, 0, 0, 1, 1, 1, 1], np.int8)),
ak.index.Index32(np.array([0, 1, 2, 3, 0, 1, 2, 3], np.int32)),
[left, right],
parameters={"some": "other"},
)
assert array.parameter("some") == "other"
assert array.parameter("left") is None
assert array.parameter("right") is None
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