private function validateAdditionalItemsSchemaObject(array $subject, array $schema): bool
    {
        for ($i = 0; $i < count($subject); $i++) {
            $nodeValidator = new NodeValidator($schema['additionalItems'], $this->rootSchema);
            if (!$nodeValidator->validate($subject[$i])) {
                return false;
            }
        }
        return true;
    }