code: def main():
      parser = argparse.ArgumentParser()
      parser.add_argument("-model", type=str, required=True)
      parser.add_argument("-out_file", type=str, required=True)
      parser.add_argument(
          "-side",
          choices=["src", "tgt"],
          help="""Specifies
                                 'src' or 'tgt' side for 'vocab' file_type.""",
      )
  
      opt = parser.parse_args()
  
      if opt.side not in ["src", "tgt"]:
          raise ValueError(
              "If using -file_type='vocab', specifies "
              "'src' or 'tgt' argument for -side."
          )
      import torch
  
      print("Reading input file...")
      model = torch.load(opt.model, map_location=torch.device("cpu"))
      voc = model["vocab"][opt.side]
  
      print("Writing vocabulary file...")
      with open(opt.out_file, "wb") as f:
          for w in voc:
              f.write("{0}\n".format(w).encode("utf-8"))
  
label_desc: Use image node_id 1 for calling a global function with example usage: main() without return types