@@ -1127,6 +1127,8 @@ def __call__(self, *args, **kwargs):
         result = self.__origin__(*args, **kwargs)
         try:
             result.__orig_class__ = self
+        # Some objects raise TypeError (or something even more exotic)
+        # if you try to set attributes on them; guarding against that here
         except Exception:
             pass
         return result