docstr: Used to mark the App has stopped if everything has fine.
docstr_tok: ["Used","to","mark","the","App","has","stopped","if","everything","has","fine","."]
code: def stop_app(self, app: "lightning.LightningApp"):  # noqa: F821
      """Used to mark the App has stopped if everything has fine."""
      self.backends["cloud"].stop_app(app)
  
imports: import os
  from typing import Optional
  from lightning_cloud.openapi import AppinstancesIdBody, Externalv1LightningappInstance
  from lightning.app.core import constants
  from lightning.app.core.queues import QueuingSystem
  from lightning.app.launcher.lightning_backend import CloudBackend
  from lightning.app.runners.backends.backend import Backend
  from lightning.app.runners.backends.mp_process import MultiProcessingBackend
  from lightning.app.utilities.network import LightningClient
label_desc: Use image node_id 16 for calling the CloudHybridBackend obj's underlying member method code with example usage: obj.stop_app(app) without return types