Hello

Anybody has any idea upon how this new property wrappers works?

There is one example in the WWDC2020 talk that is just example however no information about this new addition.

struct BookCommands: Commands {
@FocusedBinding(\.selectedBook) private var selectedBook: Book?

var body: some Commands {
    CommandMenu("Book") {
        Section {
            Button("Update Progress...", action: updateProgress)
                .keyboardShortcut("u")
            Button("Mark Completed", action: markCompleted)
                .keyboardShortcut("C")
        }
        .disabled(selectedBook == nil)
    }
}

private func updateProgress() {
    selectedBook?.updateProgress()
}
private func markCompleted() {
    selectedBook?.markCompleted()
}

}

Anybody has figured out how to use them?

This thread at the developer forums has some info