TYP: misc typing cleanups for #29116
pandas\core\frame.py:7429:59: error: Argument 3 to "relabel_result" has incompatible type "Optional[List[str]]"; expected "Tuple[Any, ...]"  [arg-type]
pandas\core\frame.py:7429:68: error: Argument 4 to "relabel_result" has incompatible type "Optional[List[int]]"; expected "List[int]"  [arg-type]
LGTM pending green Thanks @simonjayhawkins 