def __missing__(self, key):
        if self.default_factory is None:
            raise KeyError(key)
        else:
            ret = self[key] = self.default_factory(name=key)
            return ret
def _rank_zero_info(self, *args, **kwargs) -> None:
        if self._local_rank in (None, 0):
            log.info(*args, **kwargs)