Update types for `Series.unstack`, `DataFrame.stack`, and `DataFrame.unstack`#1259

Merged

Dr-Irv merged 3 commits intopandas-dev:mainfrom

stephenlrandall:unstack-typing

Jun 20, 2025

Commits on Jun 20, 2025

update types, add tests
Stephen Randall
committed
remove unnecessary test
Stephen Randall
committed
added check
Stephen Randall
committed