code: def setUpClass(cls):
      cls._token = TOKEN
      HfFolder.save_token(TOKEN)
  
file_path: optimum/tests/test_configuration_utils.py
imports: import os
  import tempfile
  import unittest
  from huggingface_hub import HfFolder, delete_repo
  from requests.exceptions import HTTPError
  from transformers.testing_utils import TOKEN, USER, is_staging_test
  from optimum.configuration_utils import BaseConfig
label_desc: Use image node_id 1 for calling the ConfigPushToHubTester obj's underlying member method code with example usage: obj.setUpClass(cls) without return types