import type { Product, ProductMedia, ProductVariant } from '../types/product';
export type SchemaVariant = {
    variant: {
        handle: string;
        sku: string;
    };
};
export declare function isObjEmpty(obj?: Record<string, any>): boolean;
export declare function atobID(id: string): string | undefined;
export declare function btoaID(id: string, type?: 'ProductVariant' | 'Product'): string;
export declare const getThemeLocale: (locale: string) => string;
/**
 * 生成 metafieldIdentifiers 查询参数
 */
export declare const getNormalCoupon: ({ variant }: {
    variant?: ProductVariant;
}) => import("../types/product").VariantCoupon | undefined;
export declare function replaceUmlaut(str: string): string;
export declare function handle(str: string): string;
export declare function getVariantImageIndex({ mediaList, variant, }: {
    variant: ProductVariant;
    mediaList: ProductMedia[];
}): null | number;
export declare function getVariantMediaList({ product, variant }: {
    variant: ProductVariant;
    product: Product;
}): ProductMedia[];
export declare const checkItemAvailableForProduct: ({ product, item, variant, }: {
    product: Product;
    variant: ProductVariant;
    item?: {
        includeTags?: string[];
        includeProducts?: SchemaVariant[];
        excludeProducts?: SchemaVariant[];
    };
}) => string | boolean | SchemaVariant | undefined;