Have you had experience using DispatchGroup in your projects for task synchronization?

DispatchGroup is used for synchronizing multiple asynchronous tasks in iOS. It allows tracking when a group of tasks has completed and executing code afterward.

Example of usage:

let group = DispatchGroup()

group.enter()
DispatchQueue.global().async {
    // Asynchronous task 1
    print("Task 1 completed")
    group.leave()
}

group.enter()
DispatchQueue.global().async {
    // Asynchronous task 2
    print("Task 2 completed")
    group.leave()
}

group.notify(queue: .main) {
    print("All tasks completed")
}

In this example, two asynchronous tasks run in parallel, and after their completion, a notify block is called on the main queue. This is useful for coordinating multiple operations, such as loading data from different sources.