type Stdlib.Effect.t += | Update : t -> unit Stdlib.Effect.t
type Stdlib.Effect.t += | Get : t Stdlib.Effect.t
val sequential_handler : t -> ('a -> 'b) -> 'a -> 'b * tval register : string -> Sstt.Ty.t -> unitval register_parametrized : string -> Sstt.Ty.t list -> Sstt.Ty.t -> unitval printer_params : unit -> Sstt.Printer.paramsval printer_params' : Sstt.Subst.t -> Sstt.Printer.params