sig
type ('a, 'b) t = 'a * 'b
val create : 'a -> 'b -> ('a, 'b) t
val curry : (('a, 'b) t -> 'c) -> 'a -> 'b -> 'c
val uncurry : ('a -> 'b -> 'c) -> ('a, 'b) t -> 'c
val compare :
('a -> 'a -> int) -> ('b -> 'b -> int) -> ('a, 'b) t -> ('a, 'b) t -> int
external get1 : ('a, 'b) t -> 'a = "%field0"
external get2 : ('a, 'b) t -> 'b = "%field1"
val map1 : f:('a -> 'b) -> ('a, 'c) t -> ('b, 'c) t
val map2 : f:('a -> 'b) -> ('c, 'a) t -> ('c, 'b) t
end