code: public static function createUnsubscribedRecipient(
          $emailAddress,
          $countryCode,
          \DateTime $unsubscriptionDate,
          $unsubscriptionIp = '127.0.0.1'
      ) {
          return self::createSimpleRecipient($emailAddress, $countryCode)
              ->setSubscriptionStatus(Recipient::STATUS_UNSUBSCRIBED)
              ->setUnsubscriptionDate($unsubscriptionDate)
              ->setUnsubscriptionIp($unsubscriptionIp);
      }
docs: @param string    $emailAddress The recipient email address
  @param string    $countryCode The recipient 2 letters country code
  @param \DateTime $unsubscriptionDate The recipient unsubscription date (use new \DateTime() for now)
  @param string    $unsubscriptionIp The recipient IP when the unsubscription request occur
  
  @return Recipient