code: def wave(title, audio, sample_rate):
      plt.figure(figsize=(8, 4))
      librosa.display.waveplot(audio, sr=sample_rate)
      plt.title(title)
      plt.tight_layout()
      plt.show()
  
imports: import numpy
label_desc: Use image node_id 1 for calling the AudioVisualizer obj's underlying member method code with example usage: obj.wave(title, audio, sample_rate) without return types