create random yes or no response functions

app.py

@@ -1,7 +1,11 @@
 import gradio as gr
+import random
 
-def echo(message, history):
-    return message
+#Importing gradio for chatbox and random for responses
+
+def respond_yes_or_no(message, history):
+    responses = ["Yes", "No"]
+    return random.choice(responses)
     
-chatbot = gr.ChatInterface(echo)
+chatbot = gr.ChatInterface(respond_yes_or_no, type "messages")
 chatbot.launch()