code: def good_fn():
      print("hello world")
  
imports: import json
  import os
  import shutil
  import signal
  import tempfile
  import unittest
  from unittest import mock
  from torch.distributed.elastic.multiprocessing.errors import ChildFailedError, ProcessFailure, record
  from torch.distributed.elastic.multiprocessing.errors.error_handler import ErrorHandler
label_desc: Use image node_id 2 for calling a global function with example usage: good_fn() without return types