docs: public ViewTransitionBuilder transitViewGroup(@NonNull final ViewGroupTransition viewGroupTransition, @NonNull final Cascade cascade) {
          transitViewGroup(new ViewGroupTransition() {
              @Override
              public void transit(ViewTransitionBuilder builder, ViewGroupTransitionConfig config) {
                  cascade.transit(builder, config); //sets up builder.range()
                  viewGroupTransition.transit(builder, config);
              }
          });
          return self();
      }