diff --git a/transport/index.ts b/transport/index.ts
index e93d835c..b77b6163 100644
--- a/transport/index.ts
+++ b/transport/index.ts
@@ -14,6 +14,8 @@ export type {
   MessageId,
   OpaqueTransportMessage,
   TransportClientId,
+  isStreamOpen,
+  isStreamClose,
 } from './message';
 
 /**