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chore(typing): add CompliantExpr._version #2060

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Merged
MarcoGorelli merged 1 commit into from
Feb 21, 2025
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chore(typing): add CompliantExpr._version #2060

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2 changes: 2 additions & 0 deletions narwhals/typing.py
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Original file line number Diff line number Diff line change
Expand Up @@ -25,6 +25,7 @@
from narwhals.expr import Expr
from narwhals.series import Series
from narwhals.utils import Implementation
from narwhals.utils import Version

# All dataframes supported by Narwhals have a
# `columns` property. Their similarities don't extend
Expand Down Expand Up @@ -79,6 +80,7 @@ def aggregate(self, *exprs: Any) -> Self:
class CompliantExpr(Protocol, Generic[CompliantSeriesT_co]):
_implementation: Implementation
_backend_version: tuple[int, ...]
_version: Version
_evaluate_output_names: Callable[
[CompliantDataFrame | CompliantLazyFrame], Sequence[str]
]
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