Ocsipersist_lib.Ref
module Store : Sigs.STORE
val store : Store.store Lwt.t lazy_t
type 'a t =
| Ref of 'a Stdlib.ref
| Per of 'a Store.t Lwt.t
val ref : ?persistent:string -> 'a -> 'b t
val get : 'a t -> 'b Lwt.t
val set : 'a t -> 'b -> unit Lwt.t