/** * Initialize arguments * * @return void */ public function initializeArguments() { parent::initializeArguments(); // @todo Remove this when 6.2 is no longer relevant if (version_compare(TYPO3_branch, '7.0', '<')) { // Add default Bootstrap alert classes for older TYPO3 $this->overrideArgument('class', 'string', 'CSS class(es) for this element', FALSE, 'alert alert-block'); } // Register role attribute for better a11y $this->registerArgument('role', 'string', 'ARIA role for this element', FALSE, 'alert'); }