code: def main(unused_argv):
      """Load model params, save config file and start trainer."""
      model_params = sketch_rnn_model.get_default_hparams()
      if FLAGS.hparams:
          model_params.parse(FLAGS.hparams)
      trainer(model_params)
  
imports: import json
  import os
  import time
  import zipfile
  from magenta.models.sketch_rnn import model
  from magenta.models.sketch_rnn import utils
  import numpy
  import requests
  import six
  from six.moves.urllib.request import urlretrieve
  import tensorflow.compat.v1
label_desc: Use image node_id 11 for calling a global function with example usage: main(unused_argv) without return types