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import pytest
import altair.vegalite.v5 as alt
def test_aliases():
"""Ensure that any aliases defined in `api.py` aren't colliding with names already defined in `core.py` or `channels.py`."""
for alias in ["Bin", "Impute", "Title"]:
# this test pass if the alias can resolve to its real name
try:
getattr(alt, alias)
except AttributeError as err:
raise AssertionError(f"cannot resolve '{alias}':, {err}") from err
# this test fails if the alias match a colliding name in core
with pytest.raises(AttributeError):
getattr(alt.core, alias)
# this test fails if the alias match a colliding name in channels
with pytest.raises(AttributeError):
getattr(alt.channels, alias)
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