code: def _get_store_instance(self, name: str) -> "dockerpycreds.Store":
      if name not in self._stores:
          self._stores[name] = dockerpycreds.Store(
              name, environment=self._credstore_env
          )
      return self._stores[name]
  
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 10 for calling the AuthConfig obj's underlying member method code with example usage: obj._get_store_instance(name) and returns: self