class Storage(object): __slots__ = ["_storage_provider", "_namespace"] def __init__(self, storage_provider, namespace): self._storage_provider = storage_provider self._namespace = namespace def set(self, option, value): self._storage_provider.set(self._namespace, option, value) def get(self, option, default=None): return self._storage_provider.get(self._namespace, option, default) def unset(self, option): self._storage_provider.unset(self._namespace, option)