Add datetime.date and datetime.datetime specializations

Author: alippai

pandas-stubs/_libs/tslibs/offsets.pyi

@@ -14,6 +14,7 @@ from typing import (
 
 from dateutil.relativedelta import weekday as WeekdayClass
 import numpy as np
+from pandas import Timestamp
 from pandas.core.indexes.datetimes import DatetimeIndex
 from typing_extensions import Self
 
@@ -42,6 +43,10 @@ class BaseOffset:
     @overload
     def __add__(self, other: npt.NDArray[np.object_]) -> npt.NDArray[np.object_]: ...
     @overload
+    def __add__(self, other: date) -> Timestamp: ...
+    @overload
+    def __add__(self, other: datetime) -> Timestamp: ...
+    @overload
     def __add__(self, other: BaseOffset) -> Self: ...
     @overload
     def __add__(self, other: _DatetimeT) -> _DatetimeT: ...
@@ -50,15 +55,28 @@ class BaseOffset:
     @overload
     def __radd__(self, other: npt.NDArray[np.object_]) -> npt.NDArray[np.object_]: ...
     @overload
+    def __radd__(self, other: date) -> Timestamp: ...
+    @overload
+    def __radd__(self, other: datetime) -> Timestamp: ...
+    @overload
     def __radd__(self, other: BaseOffset) -> Self: ...
     @overload
     def __radd__(self, other: _DatetimeT) -> _DatetimeT: ...
     @overload
     def __radd__(self, other: _TimedeltaT) -> _TimedeltaT: ...
+    @overload
+    def __sub__(self, other: date) -> Timestamp: ...
+    @overload
+    def __sub__(self, other: datetime) -> Timestamp: ...
+    @overload
     def __sub__(self, other: BaseOffset) -> Self: ...
     @overload
     def __rsub__(self, other: npt.NDArray[np.object_]) -> npt.NDArray[np.object_]: ...
     @overload
+    def __rsub__(self, other: date) -> Timestamp: ...
+    @overload
+    def __rsub__(self, other: datetime) -> Timestamp: ...
+    @overload
     def __rsub__(self, other: BaseOffset) -> Self: ...
     @overload
     def __rsub__(self, other: _DatetimeT) -> _DatetimeT: ...