fix

lib/Entity/DiscountEntity.php

@@ -16,6 +16,14 @@ class DiscountEntity extends AEntity
         return parent::getFactory(); // TODO: Change the autogenerated stub
     }
 
+    /**
+     * @return string
+     */
+    public function getType()
+    {
+        return $this->getRaw('TYPE', '0');
+    }
+
     /**
      * @return DiscountFields
      */