@Override
 public void setAriaAtomicProperty(Element element, boolean value) {
   Property.ATOMIC.set(element, value);
 }
 @Override
 public String getAriaAtomicProperty(Element element) {
   return Property.ATOMIC.get(element);
 }
 @Override
 public void removeAriaAtomicProperty(Element element) {
   Property.ATOMIC.remove(element);
 }