declare class EventEmit {
    eventMap: Record<string, Array<Function>>;
    $on(eventName: string, handler: Function): this | undefined;
    $emit(eventName: string, ...data: any): this;
    $once(eventName: string, handler: Function): this | undefined;
    $off(eventName: string, handler?: Function): this | undefined;
    clear(): void;
}
export default EventEmit;