BaseLinkItem::getEntityClassName

static function getEntityClassName(): string;
abstract protected static function getEntityIdFieldName(): string;

/**
 * @param RestEntity $entity
 * @param Message $message
 * @return static
 */
public static function linkEntityToMessage(RestEntity $entity, Message $message): self
{
	$link = new static();

	return $link->setEntity($entity)->setMessageInfo($message);
}