code: def resolve_url(self, app, base_url: Optional[str] = None) -> None:
      works = app.works
      if works:
          backend = self._get_backend(works[0])
          backend.resolve_url(app, base_url)
  
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 6 for calling the CloudHybridBackend obj's underlying member method code with example usage: obj.resolve_url(app, base_url) without return types