code: def launch() -> None:
      """Launch your application."""
  
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 1 for calling a global function with example usage: launch() without return types