TYP: Series.groupby (pandas-dev#49542)

lukemanley · phofl · commit a70b5e29d51a · 2022-11-09T19:05:02.000+01:00
level arg to be typed IndexLabel
diff --git a/pandas/core/series.py b/pandas/core/series.py
@@ -1982,7 +1982,7 @@ def groupby(
         self,
         by=None,
         axis: Axis = 0,
-        level: Level = None,
+        level: IndexLabel = None,
         as_index: bool = True,
         sort: bool = True,
         group_keys: bool | lib.NoDefault = no_default,
