import { first } from "https://deno.land/x/fun@v.2.0.0-alpha.11/optics.ts";
A preconstructed composed lens that focuses on the First value of a Pair.
import { first } from "https://deno.land/x/fun@v.2.0.0-alpha.11/optics.ts";
A preconstructed composed lens that focuses on the First value of a Pair.