Update chain_app.py

chain_app.py

@@ -699,7 +699,9 @@ async def main(message: cl.Message):
         ) 
 
         for event in stream:
-            await cl.Message(content=event.text).send()
+            if event.event_type == "text-generation":
+                await cl.Message(content=event.text).send()
+
 @cl.on_settings_update
 async def setup_agent(settings):
     print("on_settings_update", settings)