code: def set_room_alias(self, room_id, room_alias):
          
          data = {
              "room_id": room_id
          }
  
          return self._send("PUT", "/directory/room/{}".format(quote(room_alias)),
                            content=data)
docs: Set alias to room id
  
          Args:
              room_id (str): The room id.
              room_alias (str): The room wanted alias name.