Module QCheck.Observable
val equal : 'a t -> 'a -> 'a -> bool
val hash : 'a t -> 'a -> int
val print : 'a t -> 'a Print.t
val unit : unit t
val bool : bool t
val int : int t
val float : float t
val string : string t
val char : char t
val make : ?eq:('a -> 'a -> bool) -> ?hash:('a -> int) -> 'a Print.t -> 'a t
val map : ('a -> 'b) -> 'b t -> 'a t
val option : 'a t -> 'a option t
val list : 'a t -> 'a list t
val array : 'a t -> 'a array t
val pair : 'a t -> 'b t -> ('a * 'b) t
val triple : 'a t -> 'b t -> 'c t -> ('a * 'b * 'c) t
val quad : 'a t -> 'b t -> 'c t -> 'd t -> ('a * 'b * 'c * 'd) t