class_docstr: Custom argument parser that will display the default value for an argument
  in the help message.
class_docstr_tok: ["Custom","argument","parser","that","will","display","the","default","value","for","an","argument","in","the","help","message","."]
code: def add_argument(self, *args, **kwargs):
      # Add default value to the help message when the default is meaningful.
      default = kwargs.get("default")
      if kwargs.get(
          "action"
      ) not in self._action_defaults_to_ignore and not self._is_empty_default(
          default
      ):
          description = kwargs.get("help", "")
          kwargs["help"] = f"{description} (default = {default})"
      super().add_argument(*args, **kwargs)
  
imports: import argparse
  import logging
  import sys
  from typing import Any, Optional, Tuple, Set
  import warnings
  from allennlp import __version__
  from allennlp.commands.build_vocab import BuildVocab
  from allennlp.commands.cached_path import CachedPath
  from allennlp.commands.checklist import CheckList
  from allennlp.commands.diff import Diff
  from allennlp.commands.evaluate import Evaluate
  from allennlp.commands.find_learning_rate import FindLearningRate
  from allennlp.commands.predict import Predict
  from allennlp.commands.print_results import PrintResults
  from allennlp.commands.subcommand import Subcommand
  from allennlp.commands.test_install import TestInstall
  from allennlp.commands.train import Train
  from allennlp.commands.push_to_hf import PushToHf
  from allennlp.commands.count_instances import CountInstances
  from allennlp.common.plugins import import_plugins
  from allennlp.common.util import import_module_and_submodules
label_desc: Use image node_id 2 for calling the ArgumentParserWithDefaults obj's underlying member method code with example usage: obj.add_argument() without return types