code: def adapter():
      """Target test audio adapter fixture."""
      return AudioAdapter.default()
  
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 1 for calling a global function with example usage: adapter() and returns: AudioAdapter