public function getHeaderValue($column)
    {
        $value = Lang::get($column->label);

        /**
         * @event backend.list.overrideHeaderValue
         * Overrides the column header value in a list widget.
         *
         * If a value is returned from this event, it will be used as the value for the provided column.
         * `$value` is passed by reference so modifying the variable in place is also supported. Example usage:
         *
         *     Event::listen('backend.list.overrideHeaderValue', function($listWidget, $column, &$value) {
         *         $value .= '-modified';
         *     });
         *
         * Or
         *
         *     $listWidget->bindEvent('list.overrideHeaderValue', function ($column, $value) {
         *         return 'Custom header value';
         *     });
         *
         */
        if ($response = $this->fireSystemEvent('backend.list.overrideHeaderValue', [$column, &$value])) {
            $value = $response;
        }

        return $value;
    }