Update app.py

app.py

@@ -2,8 +2,8 @@ import streamlit as st
 from huggingface_hub import InferenceClient
 import os
 import pickle
-from langchain_community.memory import ConversationBufferMemory
-from langchain_community.tools import Tool
+from langchain.memory import ConversationBufferMemoryfrom langchain_community.tools 
+import Tool
 from langchain_community.agents import initialize_agent, AgentType
 from langchain_community.chains import LLMChain
 from langchain_community.prompts import PromptTemplate