Update app.py

app.py

@@ -15,6 +15,7 @@ from langchain.chains.combine_documents import create_stuff_documents_chain
 from dotenv import load_dotenv, dotenv_values
 from langchain.schema.document import Document
 import os
+import streamlit as st
 HUGGINGFACEHUB_API_TOKEN = os.getenv("HUGGINGFACEHUB_API_TOKEN")
 os.environ['HUGGINGFACEHUB_API_TOKEN'] = HUGGINGFACEHUB_API_TOKEN
 GOOGLE_API_KEY = os.getenv("GOOGLE_API_KEY")