code: def verbose_print(arg):
      """Helper function for printing out debugging output."""
      if support.verbose:
          with _print_mutex:
              print(arg)
  
imports: import os
  import unittest
  import random
  from test import support
  from test.support import threading_helper
  import _thread
  import time
  import warnings
  import weakref
  from test import lock_tests
label_desc: Use image node_id 1 for calling a global function with example usage: verbose_print(arg) without return types