Update app.py

app.py

@@ -9,6 +9,12 @@ from langchain_community.embeddings import HuggingFaceEmbeddings
 from langchain_community.vectorstores.utils import DistanceStrategy
 import torch
 import matplotlib.pyplot as plt
+from typing import Optional, List
+from tqdm import tqdm
+from langchain_community.vectorstores import FAISS
+
+# Rest of your code remains unchanged
+
 
 # Set display option for pandas
 pd.set_option("display.max_colwidth", None)