code: def refresh_token(self, email, refresh_token):
      self.user = self.firebase.auth().refresh(refresh_token)
      self.user["email"] = email
      self.user["expiration"] = time.time() + API_KEY_COOLDOWN
      self.expired = False
  
      # if not os.path.exists(api_key) or \
      #   time.time() - os.path.getmtime(api_key) > HALF_HOUR:
      # Rename to ensure atomic writes to json file
      # (technically more safe, but slower)
  
      tmp_api_key = os.path.join(
          tempfile.gettempdir(), "api_key_%s" % rand_string(32)
      )
      with open(tmp_api_key, "w") as f:
          f.write(json.dumps(self.user))
          f.flush()
          os.fsync(f.fileno())
          f.close()
      os.rename(tmp_api_key, self.token_file)
  
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 the FirebaseAuth obj's underlying member method code with example usage: obj.refresh_token(email, refresh_token) without return types