code: def setUpClass(cls) -> None:
      super().setUpClass()
  
file_path: audio/test/torchaudio_unittest/example/hubert/test_crop_audio_label.py
imports: import torch
  from dataset.hubert_dataset import _crop_audio_label
  from parameterized import parameterized
  from torchaudio.models import hubert_base
  from torchaudio_unittest.common_utils import get_whitenoise, TorchaudioTestCase
label_desc: Use image node_id 1 for calling the TestCropAudioLabel obj's underlying member method code with example usage: obj.setUpClass(cls) without return types