import { PurchaseUpdatePolicy } from './enums';
/**
 * Used to provide all the necessary purchase data to the {@link Qonversion.updatePurchase} method.
 * Can be created manually or using the {@link Product.toPurchaseUpdateModel} method.
 *
 * Requires Qonversion product identifiers - {@link productId} for the purchasing one and
 * {@link oldProductId} for the purchased one.
 *
 * If {@link offerId} is not specified for Android, then the default offer will be applied.
 * To know how we choose the default offer, see {@link ProductStoreDetails.defaultSubscriptionOfferDetails}.
 *
 * If you want to remove any intro/trial offer from the purchase on Android (use only a bare base plan),
 * call the {@link removeOffer} method.
 */
export declare class PurchaseUpdateModel {
    readonly productId: string;
    readonly oldProductId: string;
    updatePolicy: PurchaseUpdatePolicy | null;
    offerId: string | null;
    applyOffer: boolean;
    constructor(productId: string, oldProductId: string, updatePolicy?: PurchaseUpdatePolicy | null, offerId?: string | null);
    removeOffer(): PurchaseUpdateModel;
}