Update agent.py

agent.py

@@ -23,6 +23,7 @@ from langchain_huggingface import HuggingFaceEndpoint, ChatHuggingFace, HuggingF
 from langchain_google_genai import ChatGoogleGenerativeAI
 from langchain_groq import ChatGroq
 from langchain_community.vectorstores import SupabaseVectorStore
+from langchain.tools.retriever import create_retriever_tool
 from supabase.client import Client, create_client
 
 HUGGINGFACEHUB_API_TOKEN = getenv("HUGGINGFACEHUB_API_TOKEN")