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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 get_room_member_ids(self, room_id, start=None, timeout=None):
 """Call get room member IDs API. https://devdocs.line.me/en/#get-group-room-member-ids Gets the user IDs of the members of a group that the bot is in. This includes the user IDs of users who have not added the bot as a friend or has blocked the bot. :param str room_id: Room ID :param str start: continuationToken :param timeout: (optional) How long to wait for the server to send data before giving up, as a float, or a (connect timeout, read timeout) float tuple. Default is self.http_client.timeout :type timeout: float | tuple(float, float) :rtype: :py:class:`linebot.models.responses.MemberIds` :return: MemberIds instance """

        params = None if start is None else {'start': start}

        response = self._get(
            '/v2/bot/room/{room_id}/members/ids'.format(room_id=room_id),
            params=params,
            timeout=timeout
        )

        return MemberIds.new_from_json_dict(response.json)