class_docstr: Manage Onsets and Frames TFLite model.
code: def get_window_length(self):
      return Model.MODEL_WINDOW_LENGTH
  
file_path: magenta/magenta/models/onsets_frames_transcription/realtime/tflite_model.py
imports: import importlib
  import numpy
label_desc: Use image node_id 3 for calling the Model obj's underlying member method code with example usage: obj.get_window_length() and returns: Model