Update app.py

app.py

@@ -35,12 +35,12 @@ with gr.Blocks() as demo:
         return gr.update(value="", interactive=False), history + [[user_message,None]]
     def bot(history):
         # chat_history.append(message)  # Initialize chat history
+        history[-1][1] = ""
         bot_message = palm.chat(
             context=context,
             examples=examples,
-            messages=history[-1][0]
+            messages=history
         )
-        history[-1][1] = ""
         for character in bot_message:
             history[-1][1] += character
             time.sleep(0.05)