private function renderForCheckbox(PropertyInterface $property, $value, &$isRendered)
    {
        $evaluation = $property->getExtra();

        if ((true === $isRendered) || $evaluation['multiple'] || !('checkbox' === $property->getWidgetType())) {
            return $value;
        }

        $isRendered = true;

        return !empty($value)
            ? $this->translate('MSC.yes', 'contao_default')
            : $this->translate('MSC.no', 'contao_default');
    }