using CarShowroomDataModels.Models; using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace CarShowroomContracts.AbstractModels { public interface ISale : IId { DateTime SaleTime { get; } int Price { get; } int? ClientId { get; } int? EmployeeId { get; } List CarIds { get; } List ServiceIds { get; } } }