import EventEmitter from 'eventemitter3';
import { EventsType } from '../types';
type SuccessType = boolean;
type FailType = {
    code: number;
    message: string;
};
type SuccessReturnType = SuccessType | Promise<SuccessType>;
type FailReturnType = FailType | Promise<FailType>;
type TaskType = (...args: unknown[]) => SuccessReturnType | FailReturnType;
export declare class EventEmitterEx extends EventEmitter<EventsType> {
    private queueTask;
    /**
     * 可对支持被拦截的事件，进行拦截
     * @param eventName 事件名
     * @param task 任务
     */
    proxy(eventName: EventsType, task: TaskType): this;
    /**
     * 取消拦截器
     * @param eventName
     * @param task
     */
    removeProxy(eventName: EventsType, task: TaskType): this;
    /**
     * 执行事件
     * @param eventName 事件名
     * @param args 需要传递给拦截器的参数
     * @example
     * events.executeProxy('eventName', a, b, c)
     *   .then((value: SuccessType) => { console.log(value) })
     *   .catch((error: FailType) => { console.log(error) })
     */
    executeProxy(eventName: EventsType, ...args: unknown[]): Promise<boolean>;
    destroy(): void;
}
export {};