/**
 * Simple Event Emitter class
 *
 * @public
 */
export declare class EventEmitter {
    #private;
    /**
     * Allow events to be called to object
     *
     * @param eventType - The event type to listen for
     * @param callback - The callback function to execute when the event is dispatched
     * @public
     * @returns {void}
     */
    addEventListener(eventType: string, callback: (event: CustomEvent) => void): void;
    /**
     * Dispatch events
     *
     * @param eventType - The event type to dispatch
     * @param data - The data to pass to the event listeners
     * @public
     * @returns {void}
     */
    dispatchEvent(eventType: string, data: any): void;
}