Update app.py

app.py

@@ -5,7 +5,8 @@ from langchain_openai import AzureChatOpenAI,AzureOpenAIEmbeddings
 from langchain.memory import ConversationBufferMemory
 from langchain.chains import ConversationChain
 from langchain.chains import ConversationalRetrievalChain
-from langchain.document_loaders import UnstructuredFileLoader
+# from langchain.document_loaders import UnstructuredFileLoader
+from langchain_unstructured import UnstructuredFileLoader
 from typing import List, Dict, Tuple
 import gradio as gr
 import validators