code: def update_lightning_app_frontend(
      self, app: "lightning.LightningApp"
  ):  # noqa: F821
      self.backends["cloud"].update_lightning_app_frontend(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 7 for calling the CloudHybridBackend obj's underlying member method code with example usage: obj.update_lightning_app_frontend(app) without return types