code: def add_create_update_args(parser, required_args, optional_args, create=False):
      
      if create:
          for key in required_args:
              required_args[key]['required'] = True
          add_parser_arguments(parser, required_args, group='required arguments')
      else:
          optional_args.update(required_args)
      add_parser_arguments(parser, optional_args)
docs: Wrapper around ``add_parser_arguments``.
  
      If ``create`` is True, one argument group will be created for each of
      ``required_args`` and ``optional_args``. Each required argument will have
      the ``required`` parameter set to True automatically.
  
      If ``create`` is False, only one group of optional arguments will be
      created containing all the arguments.
  
      The arguments should be specified the same way as for
      ``add_parser_arguments``.