docs: public SystemLandscapeView createSystemLandscapeView(String key, String description) {
          assertThatTheViewKeyIsSpecifiedAndUnique(key);
  
          SystemLandscapeView view = new SystemLandscapeView(model, key, description);
          view.setViewSet(this);
          systemLandscapeViews.add(view);
          return view;
      }