updates

agent.py

@@ -1,20 +1,20 @@
 """LangGraph Agent"""
 import os
-from langchain_core.messages import HumanMessage, SystemMessage, AIMessage
-from langchain_core.tools import tool
-from langchain_core.runnables.graph import StateGraph, START
-from langchain_core.runnables.history import MessagesState
-from langchain_core.runnables.utils import ToolNode, tools_condition
-from langchain_community.utilities import WikipediaLoader, ArxivLoader
+from dotenv import load_dotenv
+from langgraph.graph import START, StateGraph, MessagesState
+from langgraph.prebuilt import tools_condition
+from langgraph.prebuilt import ToolNode
+from langchain_google_genai import ChatGoogleGenerativeAI
+from langchain_groq import ChatGroq
+from langchain_huggingface import ChatHuggingFace, HuggingFaceEndpoint, HuggingFaceEmbeddings
 from langchain_community.tools.tavily_search import TavilySearchResults
-from langchain_community.embeddings import HuggingFaceEmbeddings
+from langchain_community.document_loaders import WikipediaLoader
+from langchain_community.document_loaders import ArxivLoader
 from langchain_community.vectorstores import SupabaseVectorStore
-from langchain_groq import ChatGroq
-from langchain_google_genai import ChatGoogleGenerativeAI
-from langchain_community.chat_models import ChatHuggingFace
-from langchain_community.llms import HuggingFaceEndpoint
-from supabase import create_client, Client
-from dotenv import load_dotenv
+from langchain_core.messages import SystemMessage, HumanMessage, AIMessage
+from langchain_core.tools import tool
+from langchain.tools.retriever import create_retriever_tool
+from supabase.client import Client, create_client
 
 load_dotenv()