code: def __init__(self):
      super().__init__()
      try:
          import librosa
      except ModuleNotFoundError:
          raise ModuleNotFoundError(
              "Missed librosa library. Install it via `pip install librosa`"
          )
  
imports: import numpy
  from nlpaug.model.audio import Audio
label_desc: Use image node_id 1 to create a new Pitch object from inherited base classes: Audio with example: obj = Pitch()