public async Task <bool> GetResultAsync(PurchaseOrder purchaseOrder)
{
if (purchaseOrder.PurchaseOrderType == PurchaseOrderType.Product)
{
var shippingSlip = _purchaseOrderService.GeneratePurchaseOrderSlip(purchaseOrder.ProductLines);
_printerService.PrintText(shippingSlip);
}
return(await _nextRule.GetResultAsync(purchaseOrder));
}