module type Set_ref = sig .. end
sig
end
include State_builder.Ref
type elt
val add : elt -> unit
elt -> unit
val is_empty : unit -> bool
unit -> bool
val mem : elt -> bool
elt -> bool
val fold : (elt -> 'a -> 'a) -> 'a -> 'a
(elt -> 'a -> 'a) -> 'a -> 'a
val iter : (elt -> unit) -> unit
(elt -> unit) -> unit