C:\wamp64\www\common\messagebird\examples\conversations\enable-whatsapp-sandbox.php:27:
object(MessageBird\Objects\Conversation\Conversation)[53]
  public 'id' => null
  public 'href' => null
  public 'contact' => null
  public 'channels' => null
  public 'status' => null
  public 'messages' => null
  public 'lastUsedChannelId' => null
  public 'lastReceivedDatetime' => null
  public 'createdDatetime' => null
  public 'updatedDatetime' => null