Fixed issue with AccountBasedExpenseLineDetail

Author: ej2

quickbooks/objects/detailline.py

@@ -180,6 +180,7 @@ def __init__(self):
         self.AccountRef = None
         self.TaxCodeRef = None
         self.ClassRef = None
+        self.MarkupInfo = None
 
     def __str__(self):
         return self.BillableStatus