Swift remove from parent controller with completion

Question

I know that in Swift, when dismissing a view controller, I have the option to run some code in a completion block. I.e.

controller.dismiss(animated: true, completion: {
    // code
})

Can something like this be done when removing a view controller from its parent view controller? I'm running the following code:

controller.removeFromParentViewController()

And I would like to call something after that's completed. Thanks!