/**
  * Renders the layout data for a copied row.
  *
  * @since 1.7
  * @param string $node_id The ID of a row to copy.
  * @return array
  */
 public static function copy_row($node_id)
 {
     $row = FLBuilderModel::copy_row($node_id);
     return self::render($row->node);
 }