include UNARY_TYPE
val compare : ('a -> 'a -> int) -> 'a t -> 'a t -> int
val equal : ('a -> 'a -> bool) -> 'a t -> 'a t -> bool
val pp : 'a pp -> 'a t pp
val hash : ('a -> int) -> 'a t -> int
val map : ('a -> 'b) -> 'a t -> 'b t
val iter : ('a -> unit) -> 'a t -> unit
val fold : ('a -> 'b -> 'b) -> 'a t -> 'b -> 'b