How to use dispatch_after in Swift 3, 4 and 5 for delayed execution?

Hello! I'm new to Swift and trying to migrate old code from Objective-C where I used dispatch_after for delayed execution. Previously I wrote something like: ```objective-c dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(2.0 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{ NSLog(@"2 seconds passed"); }); ``` But in Swift 3 and above this doesn't work. I tried writing it like this: ```swift dispatch_after(dispatch_time(DISPATCH_TIME_NOW, Int64(2.0 * Double(NSEC_PER_SEC))), DispatchQueue.main, { print("2 seconds passed") }) ``` But Xcode gives an error: "Use of unresolved identifier 'dispatch_after'". I understand that GCD has changed significantly, but I can't find a clear example for Swift 3/4/5. Please explain how to properly make a 2-second delay with execution on the main thread.