code: def get_mock_dataset(dataset_dir):
      """
      dataset_dir: directory to the mocked dataset
      """
      os.makedirs(dataset_dir, exist_ok=True)
      sample_rate = 44100
  
      return _get_mocked_samples(dataset_dir, sample_rate)
  
file_path: audio/test/torchaudio_unittest/datasets/musdb_hq_test.py
imports: import os
  import torch
  from parameterized import parameterized
  from torchaudio.datasets import musdb_hq
  from torchaudio.datasets.musdb_hq import _VALIDATION_SET
  from torchaudio_unittest.common_utils import get_whitenoise, save_wav, TempDirMixin, TorchaudioTestCase
label_desc: Use image node_id 3 for calling a global function with example usage: get_mock_dataset(dataset_dir) and returns: _get_mocked_samples