code: def creds_store(self) -> Optional[str]:
      return self.get("credsStore", None)
  
imports: import base64
  import json
  import logging
  import os
  import platform
  from typing import Any, Dict, Mapping, Optional, Tuple, Union
  import dockerpycreds
label_desc: Use image node_id 5 for calling the AuthConfig obj's underlying member method code with example usage: obj.creds_store() and returns: self