Interface DiscountCode

interface DiscountCode {
    id: number;
    code: string;
    description: string;
    discount_type: "percentage" | "fixed";
    discount_value: string;
    minimum_order_amount: string;
    maximum_discount: null | string;
    is_active: boolean;
    valid_from: string;
    valid_until: null | string;
    usage_limit: null | number;
    times_used: number;
}