request sync {
    callback: id(ei_callback),
    version: u32,
}

request disconnect {
}

event disconnected {
    last_serial: u32,
    reason: u32,
    explanation: optstr,
}

event seat {
    seat: id(ei_seat),
    version: u32,
}

event invalid_object {
    last_serial: u32,
    invalid_id: id(ei_object),
}

event ping {
    ping: id(ei_pingpong),
    version: u32,
}