Update app.py

app.py

@@ -2,16 +2,15 @@ import gradio as gr
 from langchain_community.document_loaders import PyPDFLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_community.vectorstores import Chroma
-from langchain_community.embeddings import HuggingFaceEmbeddings
 from langchain_huggingface import HuggingFacePipeline
+from langchain_huggingface import HuggingFaceEmbeddings
 from langchain.chains import ConversationalRetrievalChain
 from langchain.memory import ConversationBufferMemory
 
 from pathlib import Path
 import chromadb
 from unidecode import unidecode
-
-from transformers import AutoTokenizer, AutoModelForSeq2SeqLM
+from transformers import AutoTokenizer, AutoModelForSeq2SeqLM, pipeline
 import re
 
 # Constants