import { ICartPricingResult, IUpdateCartPrices } from '../types/cart';
/**
 * Returns the key for a cart item, by concatenating the product ID, price ID and unit price.
 * @param productId {number} - The product ID
 * @param priceId {number} - The price ID
 * @param unitPrice {number} - The unit price
 * @returns {string} - The cart item key
 */
export declare function getPriceDataKey(productId: number, priceId: number, unitPrice: number): string;
/**
 * Updates the prices of products in the cart.
 * @template T extends ICartPricingResult
 * @template T2 extends IUpdateCartPrices
 * @param cartPrices {T} - The cart prices
 * @param updatePrices {T2} - The prices to update. For CATEGORY/GLOBAL flows,
 * `updatePrices.categories.*` and `updatePrices.subtotal` are subtotal pools
 * (pre-exclusive-tax).
 * @returns {T} - The updated cart prices
 */
export declare function updateCartPrices<T extends ICartPricingResult, T2 extends IUpdateCartPrices>(cartPrices: T, updatePrices?: T2): T;