code: def dump(self):
          
  
          walker = self.dump_walker
          if walker is not None:
              walker = walker.dump()
  
          state = {
              'storage': self.storage.dump(),
              'dump_walker': walker,
              'next_id': self.next_id
          }
  
          return state
docs: Serialize the state of this subsystem into a dict.
  
          Returns:
              dict: The serialized state