sig
type t
type timer_t = int64
external create : unit -> Osg.Timer.t = "osg_timer_create"
external instance : unit -> Osg.Timer.t = "osg_timer_instance"
external tick : Osg.Timer.t -> Osg.Timer.timer_t = "osg_timer_tick"
external delta_s :
Osg.Timer.t -> Osg.Timer.timer_t -> Osg.Timer.timer_t -> float
= "osg_timer_delta_s"
end