type EventCallback = (data?: any, payload?: any) => void;
export declare class EventEmitter {
    private eventListeners;
    on(event: string, callback: EventCallback): void;
    off(event: string, callback: EventCallback): void;
    emit(event: string, data?: any, payload?: any): void;
    getEvents(): {
        [key: string]: EventCallback[];
    };
}
export {};