PlaceOrder2.cs

using System;
using ValueObject;

namespace ValueObject2
{
    public record PlaceOrderCommand(Guid CustomerId, string ProductSku, int Quantity, string CurrencySymbol)
    {
        public PlaceOrderCommand(Guid customerId, string productSku)
            : this(customerId, productSku, 1, Currency.USD.ToString()) { }

        public PlaceOrderCommand(Guid customerId, string productSku, string currency)
            : this(customerId, productSku, 1, currency) { }

        public PlaceOrderCommand(Guid customerId, string productSku, int quantity)
            : this(customerId, productSku, quantity, Currency.USD.ToString()) { }
    }
}