code: def test_mp3_compresssion(art_warning, audio_batch, channels_first):
      try:
          test_input, test_output, sample_rate = audio_batch
          mp3compression = Mp3Compression(
              sample_rate=sample_rate, channels_first=channels_first
          )
  
          assert_array_equal(mp3compression(test_input)[0], test_output)
      except ARTTestException as e:
          art_warning(e)
  
file_path: adversarial-robustness-toolbox/tests/defences/preprocessor/test_mp3_compression.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import logging
  import numpy
  import pytest
  from numpy.testing import assert_array_equal
  from art.defences.preprocessor import Mp3Compression
  from tests.utils import ARTTestException
label_desc: Use image node_id 4 for calling a global function with example usage: test_mp3_compresssion(art_warning, audio_batch, channels_first) without return types