code: def test_load(audio_data):
      """Test audio loading."""
      waveform, sample_rate = audio_data
      assert sample_rate == TEST_SAMPLE_RATE
      assert waveform is not None
      assert waveform.dtype == np.dtype("float32")
      assert len(waveform.shape) == 2
      assert waveform.shape[0] == 479832
      assert waveform.shape[1] == 2
  
file_path: spleeter/tests/test_ffmpeg_adapter.py
imports: from os.path import join
  from tempfile import TemporaryDirectory
  import ffmpeg
  import numpy
  from pytest import fixture, raises
  from spleeter import SpleeterError
  from spleeter.audio.adapter import AudioAdapter
  from spleeter.audio.ffmpeg import FFMPEGProcessAudioAdapter
label_desc: Use image node_id 4 for calling a global function with example usage: test_load(audio_data) without return types