chore: overload update for pre-commit mypy. (#773)

Author: Genesis929

bigframes/core/tools/datetimes.py

@@ -28,7 +28,7 @@
 
 def to_datetime(
     arg: Union[
-        vendored_pandas_datetimes.local_scalars,
+        Union[int, float, str, datetime],
         vendored_pandas_datetimes.local_iterables,
         bigframes.series.Series,
         bigframes.dataframe.DataFrame,

bigframes/pandas/__init__.py

@@ -701,33 +701,33 @@ def read_gbq_function(function_name: str):
 
 @typing.overload
 def to_datetime(
-    arg: vendored_pandas_datetimes.local_scalars,
+    arg: Union[
+        vendored_pandas_datetimes.local_iterables,
+        bigframes.series.Series,
+        bigframes.dataframe.DataFrame,
+    ],
     *,
     utc: bool = False,
     format: Optional[str] = None,
     unit: Optional[str] = None,
-) -> Union[pandas.Timestamp, datetime]:
+) -> bigframes.series.Series:
     ...
 
 
 @typing.overload
 def to_datetime(
-    arg: Union[
-        vendored_pandas_datetimes.local_iterables,
-        bigframes.series.Series,
-        bigframes.dataframe.DataFrame,
-    ],
+    arg: Union[int, float, str, datetime],
     *,
     utc: bool = False,
     format: Optional[str] = None,
     unit: Optional[str] = None,
-) -> bigframes.series.Series:
+) -> Union[pandas.Timestamp, datetime]:
     ...
 
 
 def to_datetime(
     arg: Union[
-        vendored_pandas_datetimes.local_scalars,
+        Union[int, float, str, datetime],
         vendored_pandas_datetimes.local_iterables,
         bigframes.series.Series,
         bigframes.dataframe.DataFrame,

third_party/bigframes_vendored/pandas/core/tools/datetimes.py

@@ -7,7 +7,6 @@
 
 from bigframes import constants, series
 
-local_scalars = Union[int, float, str, datetime]
 local_iterables = Union[List, Tuple, pd.Series, pd.DataFrame, Mapping]