code: def prepare_data():
      """Downloads data."""
      if FLAGS.data == "iwslt14":
          tx.data.maybe_download(
              urls="https://drive.google.com/file/d/"
              "1Vuv3bed10qUxrpldHdYoiWLzPKa4pNXd/view?usp=sharing",
              path="./",
              filenames="iwslt14.zip",
              extract=True,
          )
      elif FLAGS.data == "toy_copy":
          tx.data.maybe_download(
              urls="https://drive.google.com/file/d/"
              "1fENE2rakm8vJ8d3voWBgW4hGlS6-KORW/view?usp=sharing",
              path="./",
              filenames="toy_copy.zip",
              extract=True,
          )
      else:
          raise ValueError("Unknown data: {}".format(FLAGS.data))
  
imports: import tensorflow
  import texar.tf
label_desc: Use image node_id 1 for calling a global function with example usage: prepare_data() without return types