import { Deno } from "https://deno.land/x/deno@v1.28.0/cli/dts/lib.deno.ns.d.ts";
const { futime } = Deno;
Changes the access (atime) and modification (mtime) times of a file
stream resource referenced by rid. Given times are either in seconds
(UNIX epoch time) or as Date objects.
const file = await Deno.open("file.txt", { create: true, write: true });
await Deno.futime(file.rid, 1556495550, new Date());