function resolve4import { resolve4 } from "https://dotland.deno.dev/std@0.177.0/node/internal/dns/promises.ts"; resolve4(hostname: string): Promise<void>resolve4(hostname: string, options: ResolveWithTtlOptions): Promise<void>resolve4(hostname: string, options: ResolveOptions): Promise<void>Parametershostname: stringReturnsPromise<void>Parametershostname: stringoptions: ResolveWithTtlOptionsReturnsPromise<void>Parametershostname: stringoptions: ResolveOptionsReturnsPromise<void>