code: def parse_args():
      parser = argparse.ArgumentParser(
          description="Initialize Visual Genome dataset.",
          epilog="Example: python visualgenome.py --download-dir ~/visualgenome",
          formatter_class=argparse.ArgumentDefaultsHelpFormatter,
      )
      parser.add_argument(
          "--download-dir",
          type=str,
          default="~/visualgenome/",
          help="dataset directory on disk",
      )
      parser.add_argument(
          "--no-download",
          action="store_true",
          help="disable automatic download if set",
      )
      parser.add_argument(
          "--overwrite",
          action="store_true",
          help="overwrite downloaded files if set, in case they are corrupted",
      )
      args = parser.parse_args()
      return args
  
file_path: dgl/examples/mxnet/scenegraph/data/prepare_visualgenome.py
imports: import argparse
  import json
  import os
  import pickle
  import random
  import shutil
  import zipfile
  import tqdm
  from gluoncv.utils import download, makedirs
label_desc: Use image node_id 1 for calling a global function with example usage: parse_args() and returns: args