Blame for app.py

import gradio as gr
from src.rag import chat


def response(message, history):
    history = history or []
    response_text = chat(message)
    history.append({"role": "user", "content": message})
    history.append({"role": "assistant", "content": response_text})
    return history

demo = gr.ChatInterface(fn=response, type="messages", examples=["hello", "hola", "merhaba"], title="Echo Bot")
demo.launch(share=True)