Update app.py

app.py

@@ -228,8 +228,8 @@ session_service = InMemorySessionService()
 session = session_service.create_session(app_name=APP_NAME, \
                                         user_id=USER_ID,\
                                         session_id=SESSION_ID)
-
-runner = Runner(agent=root_agent, app_name=APP_NAME, session_service=session_service)
+import asyncio
+runner = Runner(agent=root_agent, app_name=APP_NAME, session_service= await session_service)
 def send_query_to_agent(root_agent, query, session):
     session = session
     content = types.Content(role='user', parts=[types.Part(text=query)])