code: def main(unused_argv):
      test_ids = generate_test_set()
      generate_train_set(test_ids)
  
file_path: magenta/magenta/models/onsets_frames_transcription/onsets_frames_transcription_create_dataset_maps.py
imports: import glob
  import os
  import re
  from magenta.models.onsets_frames_transcription import audio_label_data_utils
  from note_seq import audio_io
  from note_seq import midi_io
  import six
  import tensorflow.compat.v1
label_desc: Use image node_id 4 for calling a global function with example usage: main(unused_argv) without return types