interface ServeInitimport { type ServeInit } from "https://deno.land/std@0.117.0/http/server.ts"; Additional serve options. Propertiesoptionaladdr: stringOptionally specifies the address to listen on, in the form "host:port". optionalsignal: 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.