public MonthRepo(IMonthData monthRepo) { this.monthRepo = monthRepo ?? throw new ArgumentNullException(nameof(monthRepo)); }
public ServicesBillingRepo(IServiceBillingData serviceBillingData, IMonthData monthData) { this.serviceBillingData = serviceBillingData ?? throw new ArgumentNullException(nameof(serviceBillingData)); this.monthData = monthData ?? throw new ArgumentNullException(nameof(monthData)); }