export declare class PromotionHistory {
    imei: string;
    promotionId: number;
    clientId: number | null;
    marketPlaceId: string | null;
    asin: string | null;
    promotionType: string;
    promotionDiscount: number | null;
    promotionDiscountBillingCycles: number | null;
    promotionFreeServiceMonths: number | null;
    appliedAt: Date;
}