interface Deno.ServeOptions implements Partial<Deno.ListenOptions>UnstableOptions which can be set when calling Deno.serve. Propertiesoptionalsignal: AbortSignalAn AbortSignal to close the server and all connections. optionalreusePort: booleanSets SO_REUSEPORT on POSIX systems. 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 starts listening.