import { IframeMessageRequest } from '../message/IframeMessageRequest';
import { IframeMessageResponse } from '../message/IframeMessageResponse';
import { EventEmitter } from 'events';
/**
 * send message to sub iframe page and revice messge
 *
 */
export declare class IframeMessageService extends EventEmitter {
    subWindow: Window;
    resolves: Map<string, Function>;
    constructor(target: Window);
    sendMessage(payload: IframeMessageRequest): Promise<IframeMessageResponse>;
    /**
     * 接收子页面返回的消息
     */
    reciveMessage({ data }: MessageEvent): void;
}