code: def run_server(
      file: str, queue_id: str, host: str, port: int
  ) -> None:
      """It takes the application file as input, build the application object and then use that to run the application
      server.
  
      This is used by the cloud runners to start the status server for the application
  
      """
      logger.debug(f"Run Server: {file} {queue_id} {host} {port}")
      start_application_server(file, host, port, queue_id=queue_id)
  
file_path: pytorch-lightning/src/lightning/app/cli/lightning_cli_launch.py
imports: import logging
  from typing import Tuple
  import click
  from lightning.app.core.constants import APP_SERVER_HOST, APP_SERVER_PORT
  from lightning.app.launcher.launcher import run_lightning_flow, run_lightning_work, serve_frontend, start_application_server, start_flow_and_servers
label_desc: Use image node_id 2 for calling a global function with example usage: run_server(file, queue_id, host, port) without return types