interface ServeListenerOptionsimport { type ServeListenerOptions } from "https://deno.land/std@0.202.0/http/server.ts"; Additional serve listener options. Propertiesoptionalsignal: AbortSignalAn AbortSignal to close the server and all connections. optionalonError: (error: unknown) => Response | Promise<Response>The handler to invoke when route handlers throw an error. optionalonListen: (params: { hostname: string; port: number; }) => voidThe callback which is called when the server started listening