code: def start_server(ip: str, port: int):
      try:
          environment = os.environ.copy()
          environment["LABML_APP_SERVER_IP"] = ip
          environment["LABML_APP_SERVER_PORT"] = str(port)
          subprocess.run(
              [
                  f"gunicorn --bind {ip}:{port} -w 1 -k uvicorn.workers.UvicornWorker labml_app.flask_app:app"
              ],
              env=environment,
              shell=True,
          )
      except KeyboardInterrupt:
          pass
  
label_desc: Use image node_id 1 for calling a global function with example usage: start_server(ip, port) without return types