code: def setUpClass(cls):
      cls.root_dir = cls.get_base_temp_dir()
      dataset_dir = os.path.join(cls.root_dir, "quesst14Database")
      (
          cls.utterances,
          cls.dev_samples,
          cls.eval_samples,
          cls.utterances_all,
          cls.dev_samples_all,
          cls.eval_samples_all,
      ) = get_mock_dataset(dataset_dir)
  
imports: import os
  from collections import defaultdict
  from pathlib import Path
  from parameterized import parameterized
  from torchaudio.datasets import quesst14
  from torchaudio_unittest.common_utils import get_whitenoise, save_wav, TempDirMixin, TorchaudioTestCase
label_desc: Use image node_id 1 for calling the TestQuesst14 obj's underlying member method code with example usage: obj.setUpClass(cls) without return types