app.py

import gradio as gr
import random

def echo(message, history):
    return(message)

def yes_no(message, history):
    responses = ["Yes", "No"]
    return random.choice(responses)

chatbot = gr.ChatInterface(yes_no, type = "messages", title="The best chat bot", description="Ask it Yes or No questions", theme='gstaff/sketch')

chatbot.launch()