Update app.py

app.py

@@ -14,4 +14,10 @@ with gr.Blocks() as demo:
         textbox1 = gr.Textbox()
         textbox2 = gr.Textbox()
 
+    def echo(message, chat_history):
+        return '', 'echo ' + message
+
+    textbox1.submit(echo, [textbox1, chatbot1], [textbox1, chatbot1])
+    textbox2.submit(echo, [textbox2, chatbot2], [textbox2, chatbot2])
+
 demo.launch()