Needed for .loc based partial-string indexing
(self, key: Any)
| 453 | return False |
| 454 | |
| 455 | def contains(self, key: Any) -> bool: |
| 456 | """Needed for .loc based partial-string indexing""" |
| 457 | return self.__contains__(key) |
| 458 | |
| 459 | def shift( # type: ignore[override,unused-ignore] |
| 460 | self, |