ravwojdyla commented on a change in pull request #34863:
URL: https://github.com/apache/spark/pull/34863#discussion_r767045781
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File path: python/pyspark/sql/dataframe.py
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@@ -3058,7 +3058,7 @@ def toDF(self, *cols: "ColumnOrName") -> "DataFrame":
jdf = self._jdf.toDF(self._jseq(cols))
return DataFrame(jdf, self.sql_ctx)
- def transform(self, func: Callable[["DataFrame"], "DataFrame"]) ->
"DataFrame":
+ def transform(self, func: Callable[..., "DataFrame"], *args: Any,
**kwargs: Any) -> "DataFrame":
Review comment:
Note: to properly type this, we would need
[PEP-612](https://www.python.org/dev/peps/pep-0612/) and python 3.10. An
alternative is to provide a long list of overloads for "most" cases.
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