Update app.py

app.py

@@ -2,7 +2,7 @@ import PyPDF2
 import re
 from sentence_transformers import SentenceTransformer
 import faiss
-from langchain.agents import create_react_agent, AgentType,Tool
+from langchain.agents import initialize_agent, AgentType,Tool
 from langchain.schema import HumanMessage
 from langchain_google_genai import ChatGoogleGenerativeAI
 import gradio as gr