fewbricks\acf\fields\flexible_content::get_sub_field_brick_class_name PHP Method

    public static function get_sub_field_brick_class_name()
    {
        $row_layout = get_row_layout();
        $class_name = get_sub_field($row_layout . '_brick_class');
        if (is_null($class_name)) {
            die('get_sub_field_brick_instance() could not find a hidden field named ' . $row_layout . '_brick_class .');
        }
        return $class_name;
    }