Update app.py

app.py

@@ -1,7 +1,11 @@
 import gradio as gr
+import random
 
-def echo(message, history):
-    return message
+def yes_or_no(message, history):
+    return random.choice(['Yes', 'No'])
+
+# def echo(message, history):
+    # return message
 
 print("Hello World!")
 chatbot = gr.ChatInterface(echo, type = "messages")