Update app.py

app.py

@@ -2,7 +2,7 @@ import streamlit as st
 from PyPDF2 import PdfReader
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 import os
-from langchain.chain import LLMChain
+from langchain import LLMChain
 from langchain_google_genai import GoogleGenerativeAIEmbeddings
 from langchain.llms import HuggingFaceHub
 from langchain.embeddings import HuggingFaceInferenceAPIEmbeddings
@@ -47,7 +47,7 @@ def get_conversational_chain():
     """
     # model = ChatGoogleGenerativeAI(model="gemini-pro", temperature=0.1)
     model = HuggingFaceHub(repo_id="google/gemma-1.1-7b-it",
-                            model_kwargs={"temperature": 0.2,"max_new_tokens":512})
+                            model_kwargs={"temperature": 0.2,"max_new_tokens":512}, return_only_answer=True)
     prompt = PromptTemplate(template=prompt_template, input_variables=["context", "question"])
     chain = LLMChain(llm=model, chain_type="stuff", prompt=prompt)
     return chain