Module QCheck.Tuple
type 'a t=|Nil : unit t|Cons : 'a * 'b t -> ('a * 'b) tHeterogeneous tuple, used to pass any number of arguments to a function.
val o_nil : unit obsval o_cons : 'a Observable.t -> 'b obs -> ('a * 'b) obs
module Infix : sig ... endval observable : 'a obs -> 'a t Observable.t