from sqlalchemy.orm import Session from my_app.models import User # Create a session object and query for a user object session = Session() user = session.query(User).filter_by(id=1).first() # Check which session the user object is associated with user_session = session.object_session(user) # Do something with the user object user.email = '[email protected]' # Check if there are any pending changes in the user's session if user_session.dirty: # Commit the changes to the session user_session.commit()In this example, we create a session object and use it to query for a user object. We then use `object_session()` to check which session the user object is associated with. We make some changes to the user object, and then check if there are any pending changes in the user's session using the `dirty` attribute. If there are changes, we commit them to the session using the `commit()` method. The package library used in this example is SQLAlchemy's ORM or `sqlalchemy.orm`.