Update app.py

app.py

@@ -43,7 +43,7 @@ with gr.Blocks() as demo:
             messages=history[-2][0]
         )
         history[-1][1] = ""
-        for character in bot_message:
+        for character in bot_message.last:
             history[-1][1] += character
             time.sleep(0.05)
             yield history