code: def piano_roll(annotation, **kwargs):
      '''Plotting wrapper for piano rolls'''
      times, midi = annotation.to_interval_values()
  
      return mir_eval.display.piano_roll(times, midi=midi, **kwargsf piano_roll(annotation, **kwargs):
      '''Plotting wrapper for piano rolls'''
      times, midi = annotation.to_interval_values()
  
      return mir_eval.display.piano_roll(times, midi=midi, **kwargs)
docs: Plotting wrapper for piano rolls