code: def test_experimental_no_warning(self):
      with patch(
          "huggingface_hub.constants.HF_HUB_DISABLE_EXPERIMENTAL_WARNING",
          True,
      ):
          with warnings.catch_warnings(record=True) as w:
              warnings.simplefilter("always")
              self.assertEqual(dummy_function(), "success")
          self.assertEqual(len(w), 0)
  
file_path: huggingface_hub/tests/test_utils_experimental.py
imports: import unittest
  import warnings
  from unittest.mock import patch
  from huggingface_hub.utils import experimental
label_desc: Use image node_id 2 for calling the TestExperimentalFlag obj's underlying member method code with example usage: obj.test_experimental_no_warning() without return types