private static void TestOrders(int goodsOwnerId, OrdersClient ordersClient)
        {
            Console.WriteLine("Running order examples...");
            Console.WriteLine("");

            var orderNumber = "PR78912"; // A unique order number.

            // Define a new order.
            var order = new PostOrderModel()
            {
                GoodsOwnerId = goodsOwnerId,
                Consignee    = new PostOrderConsignee()
                {
                    Name        = "Test Testsson",
                    Address1    = "Test Street 1",
                    City        = "Test City",
                    PostCode    = "111111",
                    CountryCode = "SE"
                },
                OrderNumber = orderNumber,
                OrderLines  = new List <PostOrderLine>()
                {
                    new PostOrderLine()
                    {
                        RowNumber = "OrderRow1", ArticleNumber = "1234", NumberOfItems = 2
                    },                                                                                     // Each order line must have a unique row number.
                    new PostOrderLine()
                    {
                        RowNumber = "OrderRow2", ArticleNumber = "7879", NumberOfItems = 4
                    },
                }
            };

            // Send the new order to the warehouse, thus creating it.
            var createResponse = ordersClient.PutOrder(order);

            // If we send in the same order number again, the system will try to update the order.
            // It is possible to update an order as long as the warehouse has not started working on it.
            order.OrderLines.Add(new PostOrderLine()
            {
                RowNumber = "OrderRow3", ArticleNumber = "5943", NumberOfItems = 9
            });
            var updateResponse = ordersClient.PutOrder(order);

            // You may upload files (documents, labels, etc) to orders.
            var pdfPath = @"C:\WMS\Invoice-PR78912.pdf";

            if (System.IO.File.Exists(pdfPath))
            {
                var fileBase64 = Convert.ToBase64String(System.IO.File.ReadAllBytes(pdfPath));
                var file       = new PostFileModel()
                {
                    FileName = "Invoice-PR78912.pdf", FileDataBase64 = fileBase64, MimeType = "application/pdf"
                };
                ordersClient.Post(createResponse.OrderId.Value, file);
            }

            // You may query for orders using various ways.
            // For instance using orderId:
            var getOrderByOrderId = ordersClient.Get(createResponse.OrderId.Value);

            // Or by order number:
            var getOrderByOrderNumber = ordersClient.GetAll(goodsOwnerId, orderNumber, null, null, null, null, null, null, null);

            // Or get all orders which have been shipped during a particular period:
            var from = new DateTimeOffset(new DateTime(2019, 11, 1, 12, 0, 0));
            var to   = new DateTimeOffset(new DateTime(2019, 11, 1, 13, 0, 0));
            var getOrdersByShippedTime = ordersClient.GetAll(goodsOwnerId, null, from, to, null, null, null, null, null);

            foreach (var shippedOrder in getOrdersByShippedTime)
            {
                // Handle "shippedOrder" somehow.
            }
        }