export declare type OnNotificationFunc = (payload: any) => void;
export declare const EventBus: {
    listen: (eventName: string, callback: OnNotificationFunc) => void;
    listenOnce: (eventName: string, callback: OnNotificationFunc) => void;
    remove: (eventName: string, callback: OnNotificationFunc) => void;
    emit: (eventName: string, payload: any) => void;
};