def serialized(self):
        to_ret = {}
        for group, requirements in self.items():
            to_ret[group] = [str(requirement) for requirement in requirements]
        return to_ret
def setup(
        self, stage: Optional[str] = None, local_rank: Optional[int] = None, log_dir: Optional[str] = None
    ) -> None:
        """Execute arbitrary pre-profiling set-up steps."""
        self._stage = stage
        self._local_rank = local_rank
        self._log_dir = log_dir
        self.dirpath = self.dirpath or log_dir