import UIKit

class Push: UIStoryboardSegue {
    override func perform() {
        let transition = CATransition()
        transition.duration = 0.5
        transition.type = kCATransitionPush
        transition.subtype = kCATransitionFromRight
        
        source.view.window!.layer.add(transition, forKey: kCATransition)
        source.present(destination, animated: false, completion: nil)
    }
}