getAttributeSanitizers example

                return null;
            }

            public function sanitizeAttribute(string $element, string $attribute, string $value, HtmlSanitizerConfig $config): ?string
            {
                return '';
            }
        };

        $config = $config->withAttributeSanitizer($sanitizer);
        $this->assertContains($sanitizer, $config->getAttributeSanitizers());

        $config = $config->withoutAttributeSanitizer($sanitizer);
        $this->assertNotContains($sanitizer, $config->getAttributeSanitizers());
    }
}

private array $attributeSanitizers = [];

    /** * @param array<string, false|array<string, bool>> $elementsConfig */
    public function __construct(HtmlSanitizerConfig $config, array $elementsConfig)
    {
        $this->config = $config;
        $this->elementsConfig = $elementsConfig;
        $this->forcedAttributes = $config->getForcedAttributes();

        foreach ($config->getAttributeSanitizers() as $attributeSanitizer) {
            foreach ($attributeSanitizer->getSupportedElements() ?? ['*'] as $element) {
                foreach ($attributeSanitizer->getSupportedAttributes() ?? ['*'] as $attribute) {
                    $this->attributeSanitizers[$element][$attribute][] = $attributeSanitizer;
                }
            }
        }
    }

    public function visit(\DOMDocumentFragment $domNode): ?NodeInterface
    {
        $cursor = new Cursor(new DocumentNode());