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