code: def reassign(self, user_ids, requester_id):
          
          if not user_ids:
              raise Error('Must pass at least one user id')
          self._do_action('reassign', requester_id=requester_id, assigned_to_user=','.join(user_ids))
docs: Reassign this incident to a user or list of users
  
          :param user_ids: A non-empty list of user ids