* @since 5.0.0 */ class DuplicateNestedElementsEvent extends Event { /** * @var ElementInterface The source element that nested elements were duplicated from */ public ElementInterface $source; /** * @var ElementInterface The target element that nested elements were duplicated to */ public ElementInterface $target; /** * @var array The new nested element IDs, indexed by their original elements’ IDs */ public array $newElementIds; }