code: def remove_all_keys():
      keypath = os.path.join(
          os.path.expanduser("~"), ".studioml", "keys"
      )
      if os.path.exists(keypath):
          try:
              shutil.rmtree(keypath)
          except OSError:
              pass
  
imports: import os
  import getpass
  import time
  import json
  import shutil
  import atexit
  import tempfile
  import requests
  import re
  import uuid
  from builtins import input
  import google.auth.transport.requests
  import google.oauth2.id_token
  from studio.util.util import rand_string, check_for_kb_interrupt
  from studio import pyrebase
  from studio.util import logs
label_desc: Use image node_id 4 for calling a global function with example usage: remove_all_keys() without return types