docs: def add_argument(*args, **kwargs):
      """
      Define an argument for the function when running in console script
      mode.  The positional and keyword arguments are the same as for
      ArgumentParser.add_argument().
      """
  
      def decorator(func):
          func = ScriptAdaptor._wrap(func)
          func._add_argument(args, kwargs)
          return func
      return decorator