export declare type EVENT_HANDLER = {
    name: string;
    handler: Function;
    once?: boolean;
};
export default class EventBus {
    on(eventName: string, func: Function): string;
    once(eventName: string, func: Function): string;
    emit(eventName: string, params?: Dictionary<any> | Dictionary<any>[]): void;
    stop(id: string): void;
}