/**
  * @param GrabBagPlugin $plugin - plugin owner
  * @param str $id - server id
  * @param str $tag - data tag
  * @param array $attrs - server attributes
  */
 public function __construct(GrabBagPlugin $plugin, $id, $tag, $attrs)
 {
     parent::__construct($plugin);
     $this->serverId = $id;
     $this->tag = $tag;
     $this->attrs = $attrs;
 }
 /**
  * @param GrabBagPlugin $plugin - plugin owner
  */
 public function __construct(GrabBagPlugin $plugin, $id)
 {
     parent::__construct($plugin);
     $this->serverId = $id;
 }