code: def test_replaygain_track(self):
      original = load_signal(flac_file)
      data, sample_rate = load_audio_file(
          rg_flac_file, replaygain_mode="track"
      )
      signal = Signal(data)
      self.assertEqual(sample_rate, 44100)
      # The FLAC file has an RG track gain of +8.39
      self.assertAlmostEqual(
          signal.spl() - original.spl(), 8.39, places=3
      )
  
imports: from __future__ import absolute_import, division, print_function
  import io
  import unittest
  from os.path import join
  from madmom.io.audio import *
  from .None import AUDIO_PATH, DATA_PATH
label_desc: Use image node_id 11 for calling the TestLoadAudioFileFunction obj's underlying member method code with example usage: obj.test_replaygain_track() without return types