Method getAccessors

/**
 * Method to configure available option accessors.
 *
 * @return  array
 *
 * @since  4.0.0
 */
protected static function getAccessors() : array
{
    return ['text', 'task', 'icon', 'attributes', 'onclick', 'buttonClass' => 'button_class', 'listCheck', 'listCheckMessage', 'form', 'formValidation'];
}