Update agent.py

agent.py

@@ -1,8 +1,13 @@
 import os
 from langchain.agents import AgentExecutor, create_react_agent
 from langchain.tools import tool
+from langgraph.graph import START, StateGraph, MessagesState
 from langchain.prompts import PromptTemplate
-from langchain_openai import ChatOpenAI  # OpenAI-compatible for Groq API
+from langchain_google_genai import ChatGoogleGenerativeAI
+from langchain_groq import ChatGroq
+from langchain_huggingface import ChatHuggingFace, HuggingFaceEndpoint, HuggingFaceEmbeddings
+from langchain_core.messages import SystemMessage, HumanMessage
+#from langchain_openai import ChatOpenAI  # OpenAI-compatible for Groq API
 from ddgs import DDGS  # Updated DuckDuckGo Search
 from dotenv import load_dotenv
 import re