app.py

import gradio as gr
import random

def echo(message, history):
    print("Hello, world!")    
    return message

def yes_or_no(message, history):
    responses = ['yes', 'no']
    print("message:", message)
    print("history:", history)
    return random.choice(responses)

chatbot = gr.ChatInterface(yes_or_no, type='messages', title="Yes or No Bot",
                           description = "This chatbot only responds with Yes or No",
                           examples = ["Is today my lucky day?", "Are you my mother?"])
chatbot.launch()