update

test/test_js_mix_payload_sender.js

@@ -222,7 +222,7 @@ async function test_mix_send() {
     ];
     
     // Use smartsend with mixed content
-    const env = await smartsend(
+    const { env, msg_json_str } = await smartsend(
         SUBJECT,
         payloads,
         {
@@ -236,7 +236,8 @@ async function test_mix_send() {
             receiverName: "",
             receiverId: "",
             replyTo: "",
-            replyToMsgId: ""
+            replyToMsgId: "",
+            isPublish: true  // Publish the message to NATS
         }
     );