code: def main():
      parser = argparse.ArgumentParser()
      parser.add_argument(
          "--model",
          required=True,
          help="sentencepiece model to use for decoding",
      )
      parser.add_argument(
          "--input", required=True, help="input file to decode"
      )
      parser.add_argument(
          "--input_format", choices=["piece", "id"], default="piece"
      )
      args = parser.parse_args()
  
      sp = spm.SentencePieceProcessor()
      sp.Load(args.model)
  
      if args.input_format == "piece":
  
          def decode(input):
              return "".join(sp.DecodePieces(input))
  
      elif args.input_format == "id":
  
          def decode(input):
              return "".join(sp.DecodeIds(input))
  
      else:
          raise NotImplementedError
  
      def tok2int(tok):
          # remap reference-side <unk> (represented as <<unk>>) to 0
          return int(tok) if tok != "<<unk>>" else 0
  
      with open(args.input, "r", encoding="utf-8") as h:
          for line in h:
              if args.input_format == "id":
                  print(
                      decode(list(map(tok2int, line.rstrip().split())))
                  )
              elif args.input_format == "piece":
                  print(decode(line.rstrip().split()))
  
label_desc: Use image node_id 1 for calling a global function with example usage: main() and returns: unknown, str, str