anchor.diff:     * Sets the inner HTML content to the specified value on all selected
      * elements.
      */
  -  html(final Object value) {
  +  void html(final Object value) {
       if (value == null) {
         htmlNull();
         return;
  
positive.code:    * Removes the specified attribute from all elements in the current
     * selection.
     */
    attrNull(final String name) {
      final qualified = core.qualify(name);
      if (qualified.space != null) {
        each((node, d, i, j) {
  
negative.code:    * Sets the style property with the specified name, using the specified
     * priority.
     */
    void style(final String name, final Object value, [String priority=""]) {
      if (value == null) {
        styleNull(name);
        return;
  