code: def cli_main():
      parser = get_parser()
      args = parser.parse_args()
      main(args)
  
file_path: gluon-nlp/docs/model_zoo/datasets/language_modeling/prepare_lm.py
imports: import argparse
  import os
  import zipfile
  import tarfile
  import shutil
  from typing import List, Optional
  from collections import Counter
  from gluonnlp.base import get_data_home_dir
  from gluonnlp.utils.misc import download, load_checksum_stats
  from gluonnlp.data.vocab import Vocab
label_desc: Use image node_id 5 for calling a global function with example usage: cli_main() without return types