import type { PaymentDetailsUpdate } from '../../@standard/w3c/payment-details-update.js';
import type { PaymentRequestEventType } from '../../type/payment-request-event.type.js';
import type { PaymentRequestUpdateHandler } from '../../type/payment-request-update-handler.type.js';
/**
 * The W3C `PaymentRequestUpdateEvent` interface.
 *
 * @see https://www.w3.org/TR/payment-request/#dom-paymentrequestupdateevent
 */
export declare class PaymentRequestUpdateEvent {
    readonly type: PaymentRequestEventType;
    private isUpdated;
    private readonly onUpdateWith;
    constructor(type: PaymentRequestEventType, onUpdateWith: PaymentRequestUpdateHandler);
    get isAnswered(): boolean;
    updateWith(detailsUpdate: PaymentDetailsUpdate | Promise<PaymentDetailsUpdate>): void;
}
//# sourceMappingURL=payment-request-update-event.d.ts.map