Replacing a UINavigationController's default animation transition with a custom transition

NavigationController.swift

//
//  NavigationController.swift
//

import UIKit

class NavigationController: UINavigationController {
    init() {
        super.init(nibName: nil, bundle: nil)
        
        delegate = self
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
}

extension NavigationController: UINavigationControllerDelegate {
    
    public func navigationController(_ navigationController: UINavigationController, animationControllerFor operation: UINavigationControllerOperation, from fromVC: UIViewController, to toVC: UIViewController) -> UIViewControllerAnimatedTransitioning? {
        return NavigationControllerAnimation(operation: operation)
    }

}

class NavigationControllerAnimation: NSObject, UIViewControllerAnimatedTransitioning {
    
    let operation: UINavigationControllerOperation
    
    init(operation: UINavigationControllerOperation) {
        self.operation = operation
        
        super.init()
    }
    
    func transitionDuration(using transitionContext: UIViewControllerContextTransitioning?) -> TimeInterval {
        return 0.3
    }
    
    public func animateTransition(using transitionContext: UIViewControllerContextTransitioning) {
        guard let fromViewController = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.from),
            let toViewController = transitionContext.viewController(forKey: UITransitionContextViewControllerKey.to) else { return }
        let containerView = transitionContext.containerView
        
        if operation == .push {
            toViewController.view.frame = containerView.bounds.offsetBy(dx: containerView.frame.size.width, dy: 0.0)
            
            containerView.addSubview(toViewController.view)
            
            UIView.animate(withDuration: transitionDuration(using: transitionContext),
                           delay: 0,
                           options: [ UIViewAnimationOptions.curveEaseOut ],
                           animations: {
                            toViewController.view.frame = containerView.bounds
                            fromViewController.view.frame = containerView.bounds.offsetBy(dx: -containerView.frame.size.width, dy: 0)
            },
                           completion: { (finished) in
                            transitionContext.completeTransition(true)
            })
        } else if operation == .pop {
            containerView.addSubview(toViewController.view)
            
            UIView.animate(withDuration: transitionDuration(using: transitionContext),
                           delay: 0,
                           options: [ UIViewAnimationOptions.curveEaseOut ],
                           animations: {
                            fromViewController.view.frame = containerView.bounds.offsetBy(dx: containerView.frame.width, dy: 0)
                            toViewController.view.frame = containerView.bounds
            },
                           completion: { (finished) in
                transitionContext.completeTransition(true)
            })
        }
    }
}

If it's based on Storyboard, shouldn't it be something like below?

class ABNavigationController: ABNavigationControllerBase, UINavigationControllerDelegate {
    required init?(coder aDecoder: NSCoder) {
		super.init(coder: aDecoder)
        delegate = self
    }
}

I have no idea, I don't use Storyboards.