import { WindowLike } from '../protocol/comms';
export interface MessageEventLike {
    source: WindowLike;
    data?: any;
}
export declare class AncestorOriginVerifier {
    private providerFrame;
    private permittedOrigins;
    private timeoutMs;
    static verifyOnlyParent(providerFrame: WindowLike, permittedOrigins: string[], timeoutMs?: number): Promise<string>;
    static verify(providerFrame: WindowLike, permittedOrigins: string[], timeoutMs?: number): Promise<string[]>;
    constructor(providerFrame: WindowLike, permittedOrigins: string[], timeoutMs?: number);
    verify(allowMultipleAncestors: boolean): Promise<string[]>;
    verifyAncestorOrigin(ancestorFrame: WindowLike, parentDepth: number): Promise<string>;
}