code: def usage():
      """
      Illustrate what the various input flags are and the options should be.
  
      :return: none
      """
      global g_script_name  # name of the script being run.
  
      print("")
      print("Usage:  " + g_script_name + " [...options...]")
      print("")
      print(
          "     --help print out this help menu and show all the valid flags and inputs."
      )
      print("")
      print(
          "    --inputfileadd filename where the new java messages to ignore are stored in."
      )
      print("")
      print(
          "    --inputfilerm filename where the java messages are removed from the ignored list."
      )
      print("")
      print(
          "    --loadjavamessage filename pickle file that stores the dict structure containing java messages to include."
      )
      print("")
      print(
          "    --savejavamessage filename pickle file that saves the final dict structure after update."
      )
      print("")
      print(
          "    --printjavamessage filename print java ignored java messages stored in pickle file filenam onto console and save into a text file."
      )
      print("")
      sys.exit(1)
  
file_path: h2o-3/scripts/addjavamessage2ignore.py
imports: import sys
  import os
  import pickle
  import copy
  import subprocess
label_desc: Use image node_id 10 for calling a global function with example usage: usage() without return types