import { tree } from "https://deno.land/x/fun@v2.0.0-alpha.12/optics.ts";
A preconstructed traversal that focuses the values of a Tree.
import { tree } from "https://deno.land/x/fun@v2.0.0-alpha.12/optics.ts";
A preconstructed traversal that focuses the values of a Tree.