code: def external_to_internal_address_map(self) -> Dict[str, str]:
      return self._conf["mapping"]
  
file_path: mars/mars/oscar/backends/config.py
imports: from typing import Union, List, Dict, Any
label_desc: Use image node_id 10 for calling the ActorPoolConfig obj's underlying member method code with example usage: obj.external_to_internal_address_map() and returns: self