request destroy (destructor) {
}

request create_positioner {
    id: id(xdg_positioner) (new),
}

request get_xdg_surface {
    id: id(xdg_surface) (new),
    surface: id(wl_surface),
}

request pong {
    serial: u32,
}

event ping {
    serial: u32,
}