Update app.py

app.py

@@ -1,11 +1,12 @@
 import gradio as gr
 import PyPDF2
+from langchain.llms import GooglePalm
+from langchain.embeddings import HuggingFaceInstructEmbeddings
+from langchain.text_splitter import CharacterTextSplitter
 from langchain.embeddings import GooglePalmEmbeddings
 from langchain.vectorstores import FAISS
+from langchain.document_loaders import PyPDFLoader
 from langchain.chains import RetrievalQA
-from langchain.llms import GooglePalm
-from secret1 import GOOGLE_API as google_api
-from langchain.text_splitter import CharacterTextSplitter
 # Define chatbot response function
 def chatbot_response(user_input):
     # Example: returning a placeholder response, update with actual chatbot logic