type WithCount = {
    /**
     * Numeric count value.
     * Can be `null` when the item is not counted.
     */
    count: number | null;
};
/**
 * Calculates the total count of items.
 *
 * Sums the `count` property of all provided items and
 * memoizes the result to prevent unnecessary recalculations.
 *
 * @param items - Array of items containing a `count` field
 * @returns Total count of all items
 */
export declare function useCartCount<T extends WithCount>(items: T[]): number;
export {};