Update app.py

app.py

@@ -265,12 +265,11 @@ help center or internal documentation. Here, it's using a small demo
 knowledge base to show how retrieval-based self-service can work.
 """
 
-# Create ChatInterface
+# Create ChatInterface (without 'type' parameter for compatibility)
 chat_interface = gr.ChatInterface(
     fn=chat_respond,
     title="🤖 Self-Service KB Assistant",
     description=description,
-    type="messages", 
     examples=[
         "What makes a good knowledge base article?",
         "How could a KB assistant help agents?",