Update app.py

app.py

@@ -42,6 +42,7 @@ import os
 from langchain.chains.question_answering import load_qa_chain
 from langchain.llms import OpenAI
 import os
+import time
 # Import Azure OpenAI
 from langchain.chat_models import AzureChatOpenAI
 from langchain.schema import HumanMessage
@@ -57,7 +58,6 @@ from langchain.chat_models import AzureChatOpenAI
 from langchain.schema import HumanMessage, SystemMessage
 from langchain.callbacks import get_openai_callback
 import openai
-import time
 import pandas as pd
 import random
 import os