//CreateStockCommand command
//Guid id, string stockType, double? up, double? down, DateTime stockChange, int version, byte[] data
public StockCreatedEvent(CreateStockCommand command)
{
Id = command.Id;
StockType = command.StockType;
Up = command.Up;
Down = command.Down;
StockChange = command.StockChange;
Version = command.ExpectedVersion;
Metadata = command.AsJsonString().AsByteArray();
}
