Update app.py

app.py

@@ -15,27 +15,6 @@ from langchain_core.runnables import RunnableParallel, RunnablePassthrough
 from langchain_core.documents import Document
 huggingface_token = os.environ.get("HUGGINGFACE_TOKEN")
 
-# Memory database to store question-answer pairs
-memory_database = {}
-import os
-import json
-import gradio as gr
-import pandas as pd
-from tempfile import NamedTemporaryFile
-from typing import List
-
-from langchain_core.prompts import ChatPromptTemplate
-from langchain_community.vectorstores import FAISS
-from langchain_community.document_loaders import PyPDFLoader
-from langchain_core.output_parsers import StrOutputParser
-from langchain_community.embeddings import HuggingFaceEmbeddings
-from langchain_community.llms import HuggingFaceHub
-from langchain_core.runnables import RunnableParallel, RunnablePassthrough
-from langchain_core.text_splitters import RecursiveCharacterTextSplitter
-from langchain_core.document import Document
-
-huggingface_token = os.environ.get("HUGGINGFACE_TOKEN")
-
 # Memory database to store question-answer pairs
 memory_database = {}