returning the time bound type from a timeBoundReference

src/storm/logic/TimeBoundType.h

@@ -24,6 +24,9 @@ namespace storm {
                 assert(rewardName != ""); // Empty reward name is reserved.
             }
 
+            TimeBoundType getType() const {
+                return type;
+            }
             
             bool isStepBound() const {
                 return type ==  TimeBoundType::Steps;