class_docstr: Test the correctness of `soundfile_backend.load` for various formats
class_docstr_tok: ["Test","the","correctness","of","`","soundfile_backend.load","`","for","various","formats"]
docstr: `soundfile_backend.load` can load wav format correctly.
code: def test_wav(
      self, dtype, sample_rate, num_channels, normalize, channels_first
  ):
      """`soundfile_backend.load` can load wav format correctly."""
      self.assert_wav(
          dtype, sample_rate, num_channels, normalize, channels_first
      )
  
imports: import os
  import tarfile
  from unittest.mock import patch
  import torch
  from parameterized import parameterized
  from torchaudio._internal import module_utils
  from torchaudio.backend import soundfile_backend
  from torchaudio_unittest.common_utils import get_wav_data, load_wav, normalize_wav, PytorchTestCase, save_wav, skipIfNoModule, TempDirMixin
  from .common import dtype2subtype, parameterize, skipIfFormatNotSupported
label_desc: Use image node_id 1 for calling the TestLoad obj's underlying member method code with example usage: obj.test_wav(dtype, sample_rate, num_channels, normalize, channels_first) without return types