code: def test_spectrogram_impulse(self):
      waveform = np.zeros(40)
      waveform[9] = 1.0  # impulse shifted in time
  
      spec = spectrogram(
          waveform,
          window_function(12, "hann", frame_length=16),
          frame_length=16,
          hop_length=4,
          power=1.0,
          center=True,
          pad_mode="reflect",
          onesided=True,
      )
      self.assertEqual(spec.shape, (9, 11))
  
      expected = np.array(
          [
              [
                  0.0,
                  0.0669873,
                  0.9330127,
                  0.5,
                  0.0,
                  0.0,
                  0.0,
                  0.0,
                  0.0,
                  0.0,
                  0.0,
              ]
          ]
      )
      self.assertTrue(np.allclose(spec, expected))
  
imports: import unittest
  import numpy
  import pytest
  from transformers.audio_utils import amplitude_to_db, hertz_to_mel, mel_filter_bank, mel_to_hertz, power_to_db, spectrogram, window_function
label_desc: Use image node_id 10 for calling the AudioUtilsFunctionTester obj's underlying member method code with example usage: obj.test_spectrogram_impulse() without return types