code: def add_args(parser):
      parser.add_argument(
          "--lexical-dictionary",
          type=str,
          metavar="EXPR",
          action="append",
          help=("lexical dictionary(ies) for vocab reduction"),
      )
      parser.add_argument(
          "--num-top-words",
          type=int,
          metavar="N",
          help="num top words for vocab reduction",
      )
      parser.add_argument(
          "--max-translation-candidates-per-word",
          type=int,
          metavar="N",
          help="max translation candidates per word for vocab reduction",
      )
  
file_path: translate/pytorch_translate/vocab_reduction.py
imports: import codecs
  import logging
  import numpy
  import torch
  import torch.nn
label_desc: Use image node_id 1 for calling a global function with example usage: add_args(parser) without return types