Update pdf_bot.py

pdf_bot.py

@@ -1,11 +1,11 @@
 import os
 from dotenv import load_dotenv
-from langchain.document_loaders import PyPDFLoader
+from langchain_community.document_loaders import PyPDFLoader
+from langchain_community.embeddings import HuggingFaceEmbeddings
+from langchain_community.vectorstores import FAISS
 from langchain.text_splitter import RecursiveCharacterTextSplitter
-from langchain.embeddings import HuggingFaceEmbeddings
-from langchain.vectorstores import FAISS
 from langchain.chains import RetrievalQA
-from langchain_community.llms import ChatGroq
+from groq import Groq
 
 load_dotenv()
 groq_api_key = os.getenv("GROQ_API_KEY")