How to use the scenario.GroupRenameScenario function in scenario

def rename_group(self, group, new_name):
        def callback():
            group._name = group_name
            self.emit('group-renamed', group)
        rg = scenario.GroupRenameScenario(self._ab,
                (callback,),
                (self.__common_errback,))
        rg.group_guid = group.id
        rg.group_name = new_name
        rg()

def rename_group(self, group, new_name, done_cb=None, failed_cb=None):
        def callback():
            group._name = new_name
            self.__common_callback('group-renamed', done_cb, group)
        rg = scenario.GroupRenameScenario(self._ab,
                (callback,),
                (self.__common_errback, failed_cb))
        rg.group_guid = group.id
        rg.group_name = new_name
        rg()

def rename_group(self, group, new_name, done_cb=None, failed_cb=None):
        def callback():
            group._name = new_name
            self.__common_callback('group-renamed', done_cb, group)
        rg = scenario.GroupRenameScenario(self._ab,
                (callback,),
                (self.__common_errback, failed_cb))
        rg.group_guid = group.id
        rg.group_name = new_name
        rg()

def rename_group(self, group, new_name, done_cb=None, failed_cb=None):
        def callback():
            group._name = new_name
            self.__common_callback('group-renamed', done_cb, group)
        rg = scenario.GroupRenameScenario(self._ab,
                (callback,),
                (self.__common_errback, failed_cb))
        rg.group_guid = group.id
        rg.group_name = new_name
        rg()