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Aliases for ImputeParams and TitleParams #2732

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Jan 5, 2023
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2 changes: 2 additions & 0 deletions altair/vegalite/v5/api.py
Original file line number Diff line number Diff line change
Expand Up @@ -107,6 +107,8 @@ def _prepare_data(data, context=None):
# ------------------------------------------------------------------------
# Aliases & specializations
Bin = core.BinParams
Impute = core.ImputeParams
Title = core.TitleParams
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@utils.use_signature(core.LookupData)
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15 changes: 15 additions & 0 deletions tests/vegalite/v5/tests/test_alias.py
Original file line number Diff line number Diff line change
@@ -0,0 +1,15 @@
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"]:
getattr(alt, alias)

with pytest.raises(AttributeError):
getattr(alt.core, alias)

with pytest.raises(AttributeError):
getattr(alt.channels, alias)
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