/**
  * Returns whether logging is enabled.
  *
  * @return  boolean
  * @access  public
  * @since   1.4.0
  */
 private function is_logging_enabled()
 {
     if (!isset(self::$logging)) {
         self::$logging = WP_DEBUG && apply_filters('charitable_log_deprecated_notices', true);
     }
     return self::$logging;
 }