Module Ocsipersist_lib.Variable Parametersmodule T : sig ... endSignaturetype t = {name : T.k;default : unit -> T.v Lwt.t;}val make_lazy_lwt : name:T.k -> default:(unit -> T.v Lwt.t) -> tval make_lazy : name:T.k -> default:(unit -> T.v) -> tval make : name:T.k -> default:T.v -> tval get : t -> T.v Lwt.tval set : t -> T.v -> unit Lwt.t