app.py

import gradio as gr
import random #added here

def respond_yes_no_randomly(message,history): 
    responses = ["Yes", "No"] #added here
    return random.choice(responses) #added here

print ("Hello, world!")
    
chatbot = gr.ChatInterface(respond_yes_no_randomly, type = "messages", title ="Yes No Bot") #chatbotUI - conversation history and user input

chatbot.launch()