updated

app.py

@@ -1,10 +1,10 @@
 import gradio as gr
-from langchain.prompts import PromptTemplate, LLMChain
+from langchain.prompts import PromptTemplate
 import os
 from langchain.vectorstores import Chroma
 from getpass import getpass
 from langchain.embeddings.openai import OpenAIEmbeddings
-from langchain.chains import RetrievalQA
+from langchain.chains import RetrievalQA, LLMChain
 from langchain.chat_models import ChatOpenAI
 
 model_name = "text-embedding-ada-002"