try rewording

Author: kkraus14

spec/API_specification/dataframe_api/dataframe_object.py

@@ -30,8 +30,9 @@ def groupby(self, keys: Sequence[str], /) -> GroupBy:
 
         Notes
         -----
-        The order of the keys and the order of rows within each group is not
-        guaranteed and is implementation defined.
+        Downstream operations from this function, like aggregations, return
+        results for which row order is not guaranteed and is implementation
+        defined.
         """
         ...