Update app.py

app.py

@@ -32,8 +32,8 @@ with gr.Blocks() as demo:
     clear = gr.ClearButton([msg, chatbot])
 
     def user(user_message, history):
-        return gr.update(value="", interactive=False), history + [[user_message, ""]]
-    def bot(user_message,history):
+        return gr.update(value="", interactive=False), history + [[user_message, None]]
+    def bot(history):
         # chat_history.append(message)  # Initialize chat history
         bot_message = palm.chat(
             context=context,