mirocow\eav\models\EavAttributeType::rules PHP Method

    public function rules()
    {
        return [[['storeType'], 'integer'], [['name', 'handlerClass'], 'string', 'max' => 255], ['name', 'match', 'pattern' => '/(^|.*\\])([\\w\\.]+)(\\[.*|$)/', 'message' => Yii::t('eav', 'Type name must contain latin word characters only.')]];
    }