import { MessageHost } from '../message-host';
import { SuccessfulMessageResponse } from '../message-response.type';
import { RESPONSE } from '../selectors';
import { IFrameArg } from './iframe.type';
declare const REQUESTS: unique symbol;
declare const SOURCES: unique symbol;
declare const HANDLER: unique symbol;
export declare class IframeMessageHost extends MessageHost {
    #private;
    private channelName;
    private [REQUESTS];
    private [SOURCES];
    constructor(channelName?: string, targetFrame?: IFrameArg);
    initialize(targetFrame: IFrameArg): void;
    terminate(): void;
    protected [RESPONSE](message: SuccessfulMessageResponse): void;
    private [HANDLER];
}
export {};