cleaning

main.py

@@ -1,7 +1,7 @@
 import os
 from pathlib import Path
 from llama_index.embeddings import HuggingFaceEmbedding, VoyageEmbedding
-from llama_index import (load_index_from_storage, ServiceContext, StorageContext)
+from llama_index import (load_index_from_storage, ServiceContext, StorageContext, VectorStoreIndex)
 from llama_index import download_loader, SimpleDirectoryReader
 from llama_index.retrievers import RecursiveRetriever
 from llama_index.query_engine import RetrieverQueryEngine