message: initialized serializable_type.__val on initialization
diff: @@ -37,6 +37,7 @@ class SerializableType(type_base.BaseType):
  raise TypeMismatchException(type(str()),type(typename))
  self.__typename = typename
  + self.__val = []
  setattr(self, "mem_list", None)
  if mem_list == None or len(mem_list) == 0:
  