import { IFlagshipConfig } from '../../config/IFlagshipConfig';
import { VisitorVariationState } from '../../type.local';
import { EventDataFromIframe } from '../type';
export declare function handleIframeMessage({ event, config, func, visitorVariationState }: {
    event: MessageEvent<EventDataFromIframe>;
    config: IFlagshipConfig;
    func?: (event: MessageEvent<EventDataFromIframe>) => void;
    visitorVariationState: VisitorVariationState;
}): void;