/**
 * Validate GTIN (Global Trade Item Number).
 * Supports GTIN-8, GTIN-12, GTIN-13, GTIN-14 per GS1 GSMP.
 */
export interface ValidateGTINResult {
    valid: boolean;
    type?: string;
    error?: string;
}
export declare function validateGTIN(gtin: string): ValidateGTINResult;
//# sourceMappingURL=validate-gtin.d.ts.map