Update app.py

app.py

@@ -9,7 +9,8 @@ from llama_index.llms.gemini import Gemini
 from llama_index.core.postprocessor import SimilarityPostprocessor
 from llama_index.core.storage.docstore import SimpleDocumentStore
 from llama_index.core import StorageContext, load_index_from_storage
-
+import re
+import pandas as pd
 import gradio as gr
 import logging