Working example of Complications with WatchKit and WatchOS 9

Hello,

where can I find a working example of Complications with WatchKit and WatchOS 9? So, no ClockKit...

I try the sample code from Apple: https://developer.apple.com/documentation/widgetkit/adding_widgets_to_the_lock_screen_and_watch_faces

But even with this, there are no complications shown on the Watch or Widgets on the LockScreen. They simple do not show up in the selection :(

Where can I find something, that is working?

Thanks, Stefan