import { FormConfig, IZotloCardParams, IZotloCheckoutParams, OffersObject, PaymentDetail } from '../lib/types';
/**
 * Sends the user's decision for a post payment offer.
 *
 * The response uses the same envelope as /payment/checkout, but the offer is
 * charged synchronously (no 3DS redirect), so success is simply the absence of
 * an error code. The XHR layer resolves on 4xx/5xx too, hence the manual check.
 *
 * Errors are reported through onOfferFail rather than onFail: the payment itself
 * already succeeded at this point, only the offer did not go through.
 */
export declare function sendOfferDecision(payload: {
    offer: OffersObject;
    decision: boolean;
    params: IZotloCheckoutParams | IZotloCardParams;
}): Promise<boolean>;
/**
 * Renders the post payment offers page and takes over the rest of the success
 * flow: it closes the payment session once the user decides, then hands control
 * back through onComplete so the success page can be shown.
 *
 * Returns false when there is nothing to offer or the page could not be
 * mounted, in which case the caller keeps the original flow.
 */
export declare function handlePostPaymentOffers(payload: {
    config: FormConfig;
    params: IZotloCheckoutParams | IZotloCardParams;
    paymentDetail: PaymentDetail;
    onComplete: (paymentDetail: PaymentDetail) => Promise<void>;
}): boolean;