code: def main(prog: Optional[str] = None) -> None:
      """
      The [`run`](./train.md#run) command only knows about the registered classes in the ``allennlp``
      codebase. In particular, once you start creating your own `Model` s and so forth, it won't
      work for them, unless you use the ``--include-package`` flag or you make your code available
      as a plugin (see [`plugins`](./plugins.md)).
      """
      parser, args = parse_args(prog)
  
      # If a subparser is triggered, it adds its work as `args.func`.
      # So if no such attribute has been added, no subparser was triggered,
      # so give the user some help.
      if "func" in dir(args):
          # Import any additional modules needed (to register custom classes).
          for package_name in getattr(args, "include_package", []):
              import_module_and_submodules(package_name)
          args.func(args)
      else:
          parser.print_help()
  
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 a global function with example usage: main(prog) without return types