code: def _get_agent(self, entity_id):
          
          if entity_id is None:
              return None
  
          entity_info = self._entity_dict.get(entity_id)
          if entity_info is None:
              logger.warning("Entity key did not resolve to entity.")
              return None
          return get_agent_from_entity_info(entity_info)
docs: Convert the entity dictionary into an INDRA Agent.