diff --git a/loxi_ir/ir.py b/loxi_ir/ir.py
index ebd4f85..6fae92b 100644
--- a/loxi_ir/ir.py
+++ b/loxi_ir/ir.py
@@ -183,6 +183,10 @@
     def has_external_alignment(self):
         return self.params.get('length_includes_align') == 'False'
 
+    @property
+    def has_type_members(self):
+        return find(lambda m: isinstance(m, OFTypeMember), self.members) is not None
+
 """ one class unified across openflow versions. Keeps around a map version->versioned_class """
 class OFUnifiedClass(OFClass):
     def __new__(cls, version_classes, *a, **kw):