/**
 * Used to provide all the necessary purchase data to the {@link Qonversion.purchase} method.
 * Can be created manually or using the {@link Product.toPurchaseModel} method.
 *
 * 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 PurchaseModel {
    readonly productId: string;
    offerId: string | null;
    applyOffer: boolean;
    constructor(productId: string, offerId?: string | null);
    removeOffer(): PurchaseModel;
}