Update helper.py

helper.py

@@ -132,7 +132,7 @@ def registry(name: str = None, **kwargs) -> gr.ChatInterface:
         # Collect the generated response
         response = ""
         for partial_response in response_generator:
-            response += partial_response  # Gradio will handle streaming
+            response = partial_response  # Gradio will handle streaming
             yield response
 
     # Create the Gradio ChatInterface with the wrapper function