set langchain verbose to False

app.py

@@ -1,13 +1,16 @@
 import streamlit as st
 from PyPDF2 import PdfReader
+
 from langchain.text_splitter import CharacterTextSplitter
 from langchain.embeddings import HuggingFaceInstructEmbeddings
 from langchain.vectorstores import FAISS
 from langchain.memory import ConversationBufferMemory
 from langchain.chains import ConversationalRetrievalChain
-from htmlTemplates import css, bot_template, user_template
 from langchain.llms import HuggingFaceHub
-import os
+
+import langchain
+langchain.verbose = False
+from htmlTemplates import css, bot_template, user_template
 from dotenv import load_dotenv
 
 # Set the Streamlit page configuration and CSS styles