code: def is_alive():
      return "It is alive\n", 200
  
imports: import os
  from os import path
  import time
  from typing import Dict, List, Tuple, Union
  from common import datatypes
  import dataclasses
  import flask
  import zmq
  from google.cloud import storage
label_desc: Use image node_id 4 for calling a global function with example usage: is_alive() and returns: str,  int