public Rent(Vehicle whatVehicle, Customer whatCustomer, DateTime fromDate, DateTime toDate)
{
WhatVehicle = whatVehicle;
WhatCustomer = whatCustomer;
FromDate = fromDate;
ToDate = toDate;
}
public AdditionalEquipment(Vehicle vehicle, string disc, string name, string type, Price price)
{
Vehicle = vehicle;
Disc = disc;
Name = name;
Type = type;
Price = price;
}