Update app.py

app.py

@@ -31,9 +31,8 @@ with gr.Blocks() as demo:
     msg = gr.Textbox()
     clear = gr.ClearButton([msg, chatbot])
 
-    def respond(message):
-        global chat_history
-        chat_history.append([message])  # Wrap the message in a list or tuple
+    def respond(message, chat_history):
+        chat_history.append(message)  # Initialize chat history
         bot_message = palm.chat(
             context=context,
             examples=examples,
@@ -42,7 +41,7 @@ with gr.Blocks() as demo:
         bot_message = bot_message[-1]  # Get the last response
         chat_history.append(bot_message)  # Append the bot's message to the chat history
         time.sleep(2)
-        return bot_message
+        return bot_message, chat_history
 
     msg.submit(respond,[msg,chatbot],[msg, chatbot])