code: def fixture_audio_data():
      """fixture_audio_data"""
      path = os.path.join(
          os.path.dirname(os.path.abspath(__file__)),
          "test_audio",
          "mono_10khz.wav",
      )
      audio = tf.audio.decode_wav(tf.io.read_file(path))
      value = audio.audio * (1 << 15)
      value = tf.cast(value, tf.int16)
      rate = audio.sample_rate
      return path, value, rate
  
file_path: io/tests/test_audio.py
imports: import os
  import sys
  import pytest
  import numpy
  import tensorflow
  import tensorflow_io
label_desc: Use image node_id 1 for calling a global function with example usage: fixture_audio_data() and returns: path,  value,  rate