export declare class EventUtil {
    /**
     * Wraps an event callback function, ensuring that the event callback is always called.
     *
     * @param {(e: Event) => any} [eventCallback=() => {}] - The event callback to be wrapped.
     * @returns {(e: Event) => void} A function that invokes the event callback.
     */
    static fn(eventCallback: (e: Event) => any): (e: Event) => void;
}