type t = x of int | y of string | z of int*int
let tmp1 = x 5
let tmp2 = y "ololo"
let tmp3 = z (1, 2)

// vs несуществующая версия C#

enum t {x: int, y: string, z: Tuple<int, int>};
var tmp1 = t.x(5)
var tmp2 = t.y("ololo")
var tmp3 = t.z(new Tuple<int, int>(1,2))