Spatie\MediaLibrary\UrlGenerator\UrlGeneratorFactory::guardAgainstInvalidUrlGenerator PHP Méthode

    public static function guardAgainstInvalidUrlGenerator(string $urlGeneratorClass)
    {
        if (!class_exists($urlGeneratorClass)) {
            throw InvalidUrlGenerator::doesntExist($urlGeneratorClass);
        }
        if (!is_subclass_of($urlGeneratorClass, UrlGenerator::class)) {
            throw InvalidUrlGenerator::isntAUrlGenerator($urlGeneratorClass);
        }
    }