import { liftN } from "https://deno.land/x/fae@v1.1.1/mod.ts";
Lifts fn to a specified arity. The returned function applies
the fn on arity number of lists in all possible combination
of elements of the lists passe. The result is accumulated in a list
const add2 = Fae.liftN(3, (...args: number[]) => R.sum(args))
add2([1,2,3], [1,2,3], [1]); //=> [3, 4, 5, 4, 5, 6, 5, 6, 7]