<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def groups_rename(self, room_id, name, **kwargs):
 """Changes the name of the private group."""

        return self.__call_api_post('groups.rename', roomId=room_id, name=name, kwargs=kwargs)