Change function to return yes/no

app.py

@@ -1,10 +1,9 @@
 import gradio as gr
+import random
 
-def echo(message, history):
-	return message
-
-print("Hello, world!")
-
-chatbot = gr.ChatInterface(echo, type="messages")
+def respond(message, history): 
+    responses = ["Yes", "No"]
+	return random.choice(responses)
 
+chatbot = gr.ChatInterface(respond, type="messages")
 chatbot.launch()