import type { AppliedCoupon, PromotionValidationResponse } from './types/promotion.js';
/**
 * Build an `AppliedCoupon` from a validated promotion response.
 *
 * All numeric fields are present when `isValid === true`; callers should only
 * call this function after confirming validity. If any field is missing the
 * function falls back to zero / empty-string so the return type is satisfied
 * without non-null assertions.
 */
export declare function buildAppliedCoupon(code: string, result: PromotionValidationResponse): AppliedCoupon;
export declare function getCouponErrorMessage(result: PromotionValidationResponse, errorCodeMap: Record<string, () => string>, fallback: string): string;
//# sourceMappingURL=coupon.d.ts.map