Add return type
diff --git a/example/example11.ref b/example/example11.ref
index 4e04a3b..54e4fef 100644
--- a/example/example11.ref
+++ b/example/example11.ref
@@ -1,22 +1,22 @@
 Help on built-in function kw_func in module example
 
 kkww__ffuunncc(...)
-    kw_func(x : int, y : int)
+    kw_func(x : int, y : int) -> NoneType
 
 Help on built-in function kw_func2 in module example
 
 kkww__ffuunncc22(...)
-    kw_func2(x : int = 100L, y : int = 200L)
+    kw_func2(x : int = 100L, y : int = 200L) -> NoneType
 
 Help on built-in function kw_func3 in module example
 
 kkww__ffuunncc33(...)
-    kw_func3(data : unicode = u'Hello world!')
+    kw_func3(data : unicode = u'Hello world!') -> NoneType
 
 Help on built-in function kw_func4 in module example
 
 kkww__ffuunncc44(...)
-    kw_func4(myList : list<int> = [13L, 17L])
+    kw_func4(myList : list<int> = [13L, 17L]) -> NoneType
 
 kw_func(x=5, y=10)
 kw_func(x=5, y=10)
@@ -28,7 +28,7 @@
 kw_func(x=5, y=10)
 kw_func(x=5, y=10)
 Caught expected exception: Incompatible function arguments. The following argument types are supported:
-    1. (x : int = 100L, y : int = 200L)
+    1. (x : int = 100L, y : int = 200L) -> NoneType
 
 kw_func4: 13 17 
 kw_func4: 1 2 3