Update rag_llamaindex.py

rag_llamaindex.py

@@ -7,7 +7,7 @@ from llama_index.storage.storage_context import StorageContext
 from llama_index.vector_stores.mongodb import MongoDBAtlasVectorSearch
 
 from pathlib import Path
-from pymongo.mongo_client import MongoClient
+from pymongo import MongoClient
 
 PDF_URL       = "https://arxiv.org/pdf/2303.08774.pdf"
 WEB_URL       = "https://openai.com/research/gpt-4"