code: def load_state(self, state_id, delete=True):
          
          return self._store.load_state(f'{self._prefix}{state_id:08x}{self._suffix}', delete=delete)
docs: Load a state from storage identified by `state_id`.
  
          :param state_id: The state reference of what to load
          :return: The deserialized state
          :rtype: State