simplify

Author: MarcoGorelli

Diff for: pandas-stubs/core/series.pyi

@@ -1156,7 +1156,7 @@ class Series(IndexOpsMixin[S1], NDFrame):
     @property
     def str(
         self,
-    ) -> StringMethods[Series[S1], DataFrame, Series[bool], Series[list[str]]]: ...
+    ) -> StringMethods[Self, DataFrame, Series[bool], Series[list[str]]]: ...
     @property
     def dt(self) -> CombinedDatetimelikeProperties: ...
     @property