PayWithAmazon\IpnHandler::getRemainingIpnFields PHP Method

    private function getRemainingIpnFields()
    {
        $ipnMessage = $this->returnMessage();
        $remainingFields = array('NotificationReferenceId' => $ipnMessage['NotificationReferenceId'], 'NotificationType' => $ipnMessage['NotificationType'], 'SellerId' => $ipnMessage['SellerId'], 'ReleaseEnvironment' => $ipnMessage['ReleaseEnvironment']);
        return $remainingFields;
    }