Neos\Flow\Property\TypeConverter\PersistentObjectConverter::canConvertFrom PHP Метод

    public function canConvertFrom($source, $targetType)
    {
        return $this->reflectionService->isClassAnnotatedWith($targetType, Flow\Entity::class) || $this->reflectionService->isClassAnnotatedWith($targetType, ValueObject::class) || $this->reflectionService->isClassAnnotatedWith($targetType, \Doctrine\ORM\Mapping\Entity::class);
    }