import { CartCost, CartDiscountAllocation, SelectProductOption, StorefrontProduct } from "./types";
export declare const isValidQuantity: (quantity: any) => boolean;
export declare const isValidVariantId: (id: any) => boolean;
export declare const isValidCheckoutUrl: (url: unknown) => boolean;
export declare const normalizeLocale: (country: any, language: any) => {
    country: string;
    language: string;
};
export declare const normalizeCart: (cart: any) => {
    discountAllocations: CartDiscountAllocation[];
    totalQuantity: any;
    cost: CartCost;
    checkoutUrl: any;
    lines: any;
};
export declare const normalizeProduct: (product: any) => StorefrontProduct | null;
export declare const getOptions: (product: StorefrontProduct) => SelectProductOption[];