public void TransferShipmentToCargoBay(string shipmentName, InventoryShipment shipment)
        {
            ThrowExceptionIfNotOpenFactory();
            //Print("?> Command: transfer shipment to cargo bay");
            if (_state.ListOfEmployeeNames.Count == 0)
                throw DomainError.Named("unknown-employee", ":> There has to be somebody at factory in order to accept shipment");

            if (shipment.Cargo.Length == 0)
                throw DomainError.Named("empty-InventoryShipments", ":> Empty InventoryShipments are not accepted!");

            if (_state.ShipmentsWaitingToBeUnloaded.Count >= 2)
                throw DomainError.Named("more-than-two-InventoryShipments", ":> More than two InventoryShipments can't fit into this cargo bay :(");

            DoRealWork("opening cargo bay doors");
            Apply(new ShipmentTransferredToCargoBay(_state.Id, shipment));

            var totalCountOfParts = shipment.Cargo.Sum(p => p.Quantity);
            if (totalCountOfParts > 10)
            {
                Apply(new CurseWordUttered(_state.Id, "Boltov tebe v korobky peredach",
                                           "awe in the face of the amount of shipment delivered"));
            }
        }