/**
 * EventDispatcher - Singleton class for event handling
 */
declare class EventDispatcher {
    #private;
    observers: Record<string, Function[]>;
    constructor();
    /**
   * Get the EventDispatcher singleton instance
   * @returns {EventDispatcher} The singleton instance
   */
    static getInstance(): EventDispatcher;
    /**
   * Add event observer
   * @param {string} event - Event name
   * @param {Function} callback - Callback function
   */
    registerObserver(hookRegistryKey: string, callback: Function): void;
    /**
   * Notify registered observers on an event
   * @param {string} event - Event name
   * @param {*} data - Event data
   */
    notifyObserver(event: string, args: unknown): Promise<void>;
}
export declare const eventDispatcher: EventDispatcher;
export {};
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