code: def __str__(self):
      return self.message
  
imports: from typing import Optional, Dict, Tuple
  import base64
  import collections.abc
  import os
  import json
  import logging
  from hailtop.config import get_deploy_config
  from hailtop.utils import first_extant_file
label_desc: Use image node_id 2 for calling the NotLoggedInError obj's underlying member method code with example usage: obj.__str__() and returns: self