CourseWork_Bank/Bank/BankDataModels/IPurchaseModel.cs

using BankDataModels.HelperInterfaces;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace BankDataModels
{
    public interface IPurchaseModel : IId
    {
        int ClientId { get; }
        DateOnly DatePurchase { get; }
    }
}