class ButtonFooterMixin implements Mixin {

  public View addSpace() {
    final LinearLayout buttonContainer = ensureFooterInflated();
    View space = new View(buttonContainer.getContext());
    space.setLayoutParams(new LayoutParams(0, 0, 1.0f));
    space.setVisibility(View.INVISIBLE);
    buttonContainer.addView(space);
    return space;
  }

  public  ButtonFooterMixin(TemplateLayout layout);

}