Update utills.py

utills.py

@@ -21,7 +21,7 @@ from langchain_core.callbacks import CallbackManager, StreamingStdOutCallbackHan
 from langchain.document_loaders import PyPDFLoader
 from langchain.document_loaders.pdf import PyPDFDirectoryLoader
 from langchain_community.llms import llamacpp
-
+import streamlit as st
 
 store = {}
 @st.cache_resource