Timer.Accval clock : 'a t -> unit Lwt.t Stdlib.refval cancel : 'a t -> bool Stdlib.refval force_finish : 'a t -> bool Stdlib.refval timer_handler_data : 'a t -> 'aval elapsed : 'a t -> int Stdlib.refval remaining : 'a t -> int Stdlib.refval clock' : 'a t -> unit Lwt.tval cancel' : 'a t -> boolval elapsed' : 'a t -> intval remaining' : 'a t -> int