code: def parse_args():
      parser = argparse.ArgumentParser(
          description="Initialize ADE20K dataset.",
          epilog="Example: python prepare_cityscapes.py",
          formatter_class=argparse.ArgumentDefaultsHelpFormatter,
      )
      parser.add_argument(
          "--download-dir",
          default=None,
          help="dataset directory on disk",
      )
      args = parser.parse_args()
      return args
  
imports: import os
  import shutil
  import argparse
  import zipfile
  from gluoncv.utils import download, makedirs
  from mxnet.gluon.utils import check_sha1
label_desc: Use image node_id 1 for calling a global function with example usage: parse_args() and returns: args