Update agent.py

agent.py

@@ -18,7 +18,7 @@ from langchain_huggingface import (
 )
 from langchain_community.vectorstores import SupabaseVectorStore
 from langchain_core.messages import SystemMessage, HumanMessage
-from langchain.tools.retriever import create_retriever_tool
+from langchain.tools import create_retriever_tool
 from supabase.client import Client, create_client
 # ------- Tools
 from tools.browse import web_search, wiki_search, arxiv_search