async def prepare(url_token: str):
    room = (await room_ctl.get_room(url_token=url_token))
    if ((not room) or room.is_removed):
        raise NotFoundError()
    return room
async def prepare(url_token: str):
    room = (await room_ctl.get_room(url_token=url_token))
    if ((not room) or room.is_removed):
        raise NotFoundError()
    return room