Generic func transfer from view controller to view controller

Question

How can I make input data in func as? ViewController?

private func toVC<T>(_ id: String, vc: T.Type) {
    if let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: id) as? T {
        if let window = self.window, let rootVC = window.rootViewController {
            var currVC = rootVC
            let navVC = UINavigationController()
            while let presentVC = currVC.presentedViewController {
                currVC = presentVC
            }
            navVC.viewControllers = [vc]
            currVC.present(navVC, animated: true, completion: nil)
        }
    }
}

I get error Cannot convert value of type 'T' to expected element type 'UIViewController' in navVC.viewControllers = [vc].

How to right create func?

UPD

Answer 1

Change method signature as below specifying T of type UIViewController,

private func toVC<T: UIViewController>(_ id: String, vc: T.Type) {

---

To pass data for specific controller,

private func toVC<T>(_ id: String, vc: T.Type, data: Any) {
    if let vc = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: id) as? T {
        if let window = self.window, let rootVC = window.rootViewController {
            var currVC = rootVC
            let navVC = UINavigationController()
            while let presentVC = currVC.presentedViewController {
                currVC = presentVC
            }
            (vc as? MyViewController1)?.data = data
            (vc as? MyViewController2)?.data = data
            navVC.viewControllers = [vc]
            currVC.present(navVC, animated: true, completion: nil)
        }
    }
}