Update app.py

app.py

@@ -11,6 +11,7 @@ from langchain_community.embeddings import HuggingFaceEmbeddings
 from langchain_community.chat_models import ChatOpenAI
 from langchain.prompts import ChatPromptTemplate, MessagesPlaceholder
 from langchain_core.messages import HumanMessage, AIMessage, SystemMessage, BaseMessage
+from processing_helpers import get_optimal_workers, display_performance_metrics
 
 from utils.database import (
     create_connection,