import { IterablePromise } from '../types';
import { DisplayOptions, GetInAppMessagesResponse, InAppMessageResponse, InAppMessagesRequestParams } from './types';
/**
 * WebKit does not run listeners inside an iframe sandboxed without allow-scripts.
 * Returns true when a click listener on that document does not run.
 */
export declare const webkitBlocksIframeHandlers: (doc: Document | null | undefined) => boolean;
export declare const clearMessages: () => void;
export declare function getInAppMessages(payload: InAppMessagesRequestParams): IterablePromise<InAppMessageResponse>;
export declare function getInAppMessages(payload: InAppMessagesRequestParams, options: {
    display: DisplayOptions;
}): GetInAppMessagesResponse;