code: def test_commonvoice_str(self):
      dataset = COMMONVOICE(self.root_dir)
      self._test_commonvoice(dataset)
  
imports: import csv
  import os
  from pathlib import Path
  from typing import Dict, Tuple
  from torch import Tensor
  from torchaudio.datasets import COMMONVOICE
  from torchaudio_unittest.common_utils import get_whitenoise, normalize_wav, save_wav, TempDirMixin, TorchaudioTestCase
label_desc: Use image node_id 2 for calling the TestCommonVoiceEN obj's underlying member method code with example usage: obj.test_commonvoice_str() without return types