code: def test_push_to_hub(self):
      config = FakeConfig(attribute=15)
      with tempfile.TemporaryDirectory() as tmp_dir:
          config.save_pretrained(
              os.path.join(tmp_dir, "optimum-test-base-config"),
              push_to_hub=True,
              token=self._token,
          )
  
          new_config = FakeConfig.from_pretrained(
              f"{USER}/optimum-test-base-config"
          )
          for k, v in config.to_dict().items():
              if k != "optimum_version" and k != "transformers_version":
                  self.assertEqual(v, getattr(new_config, k))
  
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 3 for calling the ConfigPushToHubTester obj's underlying member method code with example usage: obj.test_push_to_hub() without return types