Sometimes, we might want to save both the model and it's relationship together. For example: you have Order and Address models and there is a relationship between them. Order has an address. So, you can update order and it's address value together.```php$order = Order::find($id); // $id is a numeric value for Order ID$order->description = 'New Order Description';$order->address->zipcode = 12345;// save order and it's address$order->push();```I hope you find this useful. Happy coding!