def _get_plugin_parser(self, plugin_obj):
        """ Creates a plugin argument parser.

            `plugin_obj`
                ``Plugin`` object.

            Returns ``FocusArgParser`` object.
            """

        prog_name = 'focus ' + plugin_obj.command
        desc = (plugin_obj.__doc__ or '').strip()

        parser = FocusArgParser(prog=prog_name, description=desc)
        plugin_obj.setup_parser(parser)

        return parser
Creates a plugin argument parser.

            `plugin_obj`
                ``Plugin`` object.

            Returns ``FocusArgParser`` object.