code: def test_valid_audio_type():
      """valid_audio: list input"""
      y = list(np.zeros(1000))
      librosa.util.valid_audio(y)
  
imports: import os
  import numpy
  import librosa
  import pytest
label_desc: Use image node_id 7 for calling a global function with example usage: test_valid_audio_type() without return types