/**
  * {@inheritdoc}
  */
 public static function fromArray(array $values)
 {
     $message = new self();
     $values = array_merge(['success' => null, 'item_templates' => [], 'timestamp_ms' => null], $values);
     $message->setSuccess($values['success']);
     $message->setTimestampMs($values['timestamp_ms']);
     foreach ($values['item_templates'] as $item) {
         $message->addItemTemplates($item);
     }
     return $message;
 }