code: def resolve_url(self, app, base_url: Optional[str] = None) -> None:
      pass
  
file_path: pytorch-lightning/src/lightning/app/runners/backends/docker.py
imports: from time import time
  from typing import List, Optional
  import lightning.app
  from lightning.app.core.queues import QueuingSystem
  from lightning.app.runners.backends.backend import Backend
label_desc: Use image node_id 1 for calling the DockerBackend obj's underlying member method code with example usage: obj.resolve_url(app, base_url) without return types