code: def test_power_to_db(self):
      spectrogram = get_spectrogram(
          get_whitenoise(), n_fft=400, power=2
      ).to(self.device, self.dtype)
      result = T.AmplitudeToDB("power", 80.0).to(
          self.device, self.dtype
      )(spectrogram)[0]
      expected = librosa.core.spectrum.power_to_db(
          spectrogram[0].cpu().numpy()
      )
      self.assertEqual(result, torch.from_numpy(expected))
  
file_path: audio/test/torchaudio_unittest/transforms/librosa_compatibility_test_impl.py
imports: import unittest
  import torch
  import torchaudio.transforms
  from parameterized import param, parameterized
  from torchaudio._internal.module_utils import is_module_available
  from torchaudio_unittest.common_utils import get_sinusoid, get_spectrogram, get_whitenoise, nested_params, TestBaseMixin
label_desc: Use image node_id 5 for calling the TransformsTestBase obj's underlying member method code with example usage: obj.test_power_to_db() without return types