/**
  * Renders the layout data for a new column.
  *
  * @since 1.7
  * @param string $node_id Node ID of the column to insert before or after.
  * @param string $insert Either before or after.
  * @return array
  */
 public static function render_new_column($node_id, $insert)
 {
     // Add the column.
     $col = FLBuilderModel::add_col($node_id, $insert);
     // Return the response.
     return self::render($col->parent);
 }