export interface Options {
    /**
     * A preferred port or an array of preferred ports to use.
     */
    port?: number | ReadonlyArray<number>;
    /**
     * The host on which port resolution should be performed. Can be either an IPv4 or IPv6 address.
     */
    host?: string;
}
declare const _default: (options?: Options) => Promise<number>;
export default _default;