Update app.py

app.py

@@ -1,5 +1,7 @@
 from transformers import pipeline, SpeechT5Processor, SpeechT5ForTextToSpeech, SpeechT5HifiGan
-from langchain import PromptTemplate, LLMChain, OpenAI
+from langchain.prompts import PromptTemplate
+from langchain.chains import LLMChain
+from langchain.llms import OpenAI
 import requests
 import os
 import io