Update app.py

app.py

@@ -24,7 +24,6 @@ from langchain.memory import ConversationBufferMemory
 from transformers import DistilBertTokenizer, DistilBertForQuestionAnswering
 from langchain.chains import create_history_aware_retriever, create_retrieval_chain
 from langchain.chains.combine_documents import create_stuff_documents_chain
-import panel as pn
 from langchain_core.runnables.history import RunnableWithMessageHistory
 from langchain_core.chat_history import BaseChatMessageHistory
 from langchain_community.chat_message_histories import ChatMessageHistory
@@ -32,7 +31,6 @@ from langchain_core.prompts import ChatPromptTemplate, MessagesPlaceholder
 from langchain_community.llms import Aphrodite
 from typing import Callable, Dict, List, Optional, Union
 from langchain.vectorstores import Chroma
-import re
 import streamlit as st
 from langchain_community.llms import llamacpp
 from utills import split_docs, retriever_from_chroma, history_aware_retriever,chroma_db