class Attribute implements Serializable, Cloneable {

    @Override
    public Attribute clone() {
        return new Attribute(this);
    }

    public  Attribute();
    public  Attribute(Object value);
    public  Attribute(Attribute attribute);
    public  Attribute(Object value, String role);
    public  Attribute(Object value, Expression expression, String role, String rendererName);

}