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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def add_subparsers(self, *args, **kwargs):
 """When adding a subparser, we need to ensure that our version of the SubparserAction object is returned. We also need to create the corresponding configman Option object for the subparser and pack it's foreign data section with the original args & kwargs."""


        kwargs['parser_class'] = self.__class__
        kwargs['action'] = ConfigmanSubParsersAction

        subparser_action = super(ArgumentParser, self).add_subparsers(
            *args,
            **kwargs
        )
        self._argparse_subparsers = subparser_action

        if "dest" not in kwargs or kwargs['dest'] is None:
            kwargs['dest'] = 'subcommand'
        configman_name = kwargs['dest']
        configman_default = None
        configman_doc = kwargs.get('help', '')
        subprocessor_from_string_converter = SubparserFromStringConverter()
        configman_to_string = str
        configman_is_argument = True
        configman_not_for_definition = True

        # it's finally time to create the configman Option object and add it
        # to the required_config.
        self.required_config.add_option(
            name=configman_name,
            default=configman_default,
            doc=configman_doc,
            from_string_converter=subprocessor_from_string_converter,
            to_string_converter=configman_to_string,
            is_argument=configman_is_argument,
            not_for_definition=configman_not_for_definition,
            # we're going to save the input parameters that created the
            # argparse Action.  This enables us to perfectly reproduce the
            # the original Action object later during the configman overlay
            # process.
            foreign_data=DotDict({
                'argparse.flags.subcommand': subparser_action,
                'argparse.args': args,
                'argparse.kwargs': kwargs,
                'argparse.subparsers': DotDict(),
                'argparse.subprocessor_from_string_converter':
                subprocessor_from_string_converter
            })
        )

        self.configman_subparsers_option = self.required_config[configman_name]
        subparser_action.add_configman_option(self.configman_subparsers_option)

        return subparser_action