import { reverse } from "https://dotland.deno.dev/std@0.177.0/node/dns.ts";
Performs a reverse DNS query that resolves an IPv4 or IPv6 address to an array of host names.
On error, err is an Error object, where err.code is
one of the DNS error codes.
Parameters
callback: (err: ErrnoException | null, hostnames: string[]) => void