public function __construct(array $data = null)
 {
     parent::__construct($data);
     $count = 0;
     if (is_numeric($this->subscriptionCountVpnService)) {
         $count += $this->subscriptionCountVpnService;
     }
     if (is_numeric($this->subscriptionCountAdvancedSupervision)) {
         $count += $this->subscriptionCountAdvancedSupervision;
     }
     if (is_numeric($this->subscriptionCountLocation)) {
         $count += $this->subscriptionCountLocation;
     }
     if (is_numeric($this->subscriptionCountDca)) {
         $count += $this->subscriptionCountDca;
     }
     if (is_numeric($this->subscriptionCountDim)) {
         $count += $this->subscriptionCountDim;
     }
     $this->subscriptionCount = $count;
 }