code: def stop_work(
      self,
      app: "lightning.app.LightningApp",
      work: "lightning.app.LightningWork",
  ) -> 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 2 for calling the DockerBackend obj's underlying member method code with example usage: obj.stop_work(app, work) without return types