    def cleanup(self, retention_hours: int = 72):
        """Do a cache cleanup.

        Args:
            retention_hours (int, optional): How many hours should unused elements be retained in the cache? Defaults to 72.
        """
        pass
Do a cache cleanup.

Args:
retention_hours (int, optional): How many hours should unused elements be retained in the cache? Defaults to 72.
python/aitemplate/backend/build_cache_base.py