code: def save_dict():
      """
      Save the ignored java message dict stored in g_ok_java_messages into a pickle file for future use.
  
      :return: none
      """
      global g_ok_java_messages
      global g_save_java_message_filename
      global g_dict_changed
  
      if g_dict_changed:
          with open(g_save_java_message_filename, "wb") as ofile:
              pickle.dump(g_ok_java_messages, ofile)
  
file_path: h2o-3/scripts/addjavamessage2ignore.py
imports: import sys
  import os
  import pickle
  import copy
  import subprocess
label_desc: Use image node_id 7 for calling a global function with example usage: save_dict() without return types