如何在Viewcontroller作为参数的地方做泛型函数？

Question

在下面的代码中，HomeVC是我的viewcontoller。如何使其成为通用方法？

let rootViewController = self.window!.rootViewController as! UINavigationController
    if let viewControllers = window?.rootViewController?.childViewControllers {
        for viewController in viewControllers {
            if viewController.isKind(of: HomeVC.self) {
                rootViewController.pushAnimation(viewController: viewController)
                return
            }
        }
    }