How to implement Pull-to-Refresh (UIRefreshControl) in Swift for an iOS app?

Hi everyone! I'm a beginner in iOS development with Swift and I can't figure out how to implement pull-to-refresh for a table. I've watched many tutorials, but most of them are outdated or use Objective-C.\n\nI need to update data in a UITableView when the user pulls the screen down. I created a simple project with a table that displays an array of strings. Here is my current code:\n\n```swift\nimport UIKit\n\nclass ViewController: UIViewController, UITableViewDataSource {\n \n @IBOutlet weak var tableView: UITableView!\n \n var items = ["Item 1", "Item 2", "Item 3"]\n \n override func viewDidLoad() {\n super.viewDidLoad()\n tableView.dataSource = self\n }\n \n func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {\n