code: def verify_token(token, refresh_token=None):
      claims = google.oauth2.id_token.verify_firebase_token(
          token, _grequest
      )
  
      if not claims:
          return None
      else:
          if refresh_token:
              refresh_token(claims["email"], refresh_token)
  
          # get_db().register_user(claims['user_id'], claims['email'])
  
          return claims["user_id"]
  
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 10 for calling the FirebaseAuth obj's underlying member method code with example usage: obj.verify_token(token, refresh_token) and returns: None, claims