code: def delete_branch(self, resource_id=None, db_session=None, *args, **kwargs):
          
          return self.service.delete_branch(
              resource_id=resource_id, db_session=db_session, *args, **kwargs
          )
docs: This deletes whole branch with children starting from resource_id
  
          :param resource_id:
          :param db_session:
          :return: