Update app.py

app.py

@@ -13,7 +13,7 @@ from langchain_core.runnables.history import RunnableWithMessageHistory
 from langchain.chains import create_history_aware_retriever
 import time
 import os
-from langchain_ollama.llms import OllamaLLM
+
 
 # Embedding setup
 model_name = "BAAI/bge-small-en"