Update app.py

app.py

@@ -4,13 +4,13 @@ from langchain_google_genai import ChatGoogleGenerativeAI
 from dotenv import load_dotenv
 import os
 import asyncio
+import nest_asyncio
 
 # Load environment variables
 load_dotenv()
 
-# Ensure an event loop is available
-if not asyncio.get_event_loop_policy().get_event_loop():
-    asyncio.set_event_loop(asyncio.new_event_loop())
+# Apply nest_asyncio to allow nested event loops
+nest_asyncio.apply()
 
 # Initialize Google Gemini AI
 llm = ChatGoogleGenerativeAI(