yes or no responses

app.py

@@ -1,10 +1,12 @@
 import gradio as gr
+import random
 
-def yes(message, history):
-    return "yes"
+def yes_no_response(message, history):
+    response = random.choice(["Yes", "No"])
+    return response
 
 print("Hello, world")
 
-chatbot = gr.ChatInterface(echo, type="messages")
+chatbot = gr.ChatInterface(yes_no_response, type="messages")
 
-chatbot.launch()
+chatbot.launch()