export type AlterPeriodicPaymentAmountParams = {
    MerOrderNo: string;
    PeriodNo: string;
    AlterAmt?: number;
    PeriodType?: 'D' | 'W' | 'M' | 'Y';
    PeriodPoint?: string;
    PeriodTimes?: number;
    Extday?: string;
    NotifyURL?: string;
};