Lazy.swift

class CreatePostCardCoordinator {
   private let presentingViewController: UIViewController
    lazy var tabBarController: UITabBarController = {
        let viewModel = CreatePostCardViewModel.init(coordinator: self)
        let tabBarController = CreatePostCardTabBarViewController.init(viewModel: viewModel)
        return tabBarController
    }()
    init(presentingViewController: UIViewController) {
        self.presentingViewController = presentingViewController
    }
    func start() {
        self.presentingViewController.present(tabBarController, animated: true, completion: nil)
    }
    func setupTapBar(delegate: CreatePostCardDelegate) {
        PostCardStyleCoordinator.init(tabBarController: tabBarController, delegate: delegate).start()
        
    }
}