Update app.py

app.py

@@ -1,11 +1,11 @@
 import gradio as gr
 import os
 import getpass
-from pathlib import Path  # Adicionando a importação necessária
+from pathlib import Path
 import re
 from unidecode import unidecode
 import chromadb
-from langchain_community.vectorstores import FAISS
+from langchain_community.vectorstores import FAISS, ScaNN, Milvus
 from langchain_community.document_loaders import PyPDFLoader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain_community.vectorstores import Chroma
@@ -16,7 +16,6 @@ from langchain.chains import ConversationChain
 from langchain.memory import ConversationBufferMemory
 from langchain_community.llms import HuggingFaceEndpoint
 import torch
-from langchain_community.vectorstores import FAISS, ScaNN, Milvus, Chroma
 api_token = os.getenv("HF_TOKEN")