code: def fixture_audio_path():
      return os.path.join(
          os.path.dirname(os.path.abspath(__file__)),
          "test_audio",
          "mono_10khz.wav",
      )
  
file_path: io/tests/test_ffmpeg.py
imports: import os
  import sys
  import pytest
  import numpy
  import tensorflow
  import tensorflow_io
label_desc: Use image node_id 2 for calling a global function with example usage: fixture_audio_path() and returns: os