Sulu\Component\Content\Compat\PropertyInterface::getValue PHP Method

    public function getValue();

 /**
  * {@inheritdoc}
  */
 public function write(NodeInterface $node, PropertyInterface $property, $userId, $webspaceKey, $languageCode, $segmentKey)
 {
     $tagIds = [];
     $tags = $property->getValue() === null ? [] : $property->getValue();
     foreach ($tags as $tag) {
         $tagIds[] = $this->tagManager->findOrCreateByName($tag, $userId)->getId();
     }
     $node->setProperty($property->getName(), $tagIds);
 }