/**
  * builds a new Node object
  *
  * @param LoadBalancer $lb the parent LB object
  * @param mixed $info either an ID or an array of values
  * @returns void
  */
 public function __construct(LoadBalancer $lb, $info = NULL)
 {
     $this->_lb = $lb;
     parent::__construct($lb->Service(), $info);
 }