code: function (event) {
      this.debug("Requesting subscription for " + event);
      sendReceive.call(this, {'do': 'subscribe', params: [event]}, function (result) {
          if (result.success) {
              this.debug("Succesfully subscribed to %s", event);
          } else {
              this.debug("Subscription request for %s failed", event);
          }
      });
      this.subscribedEvents.push(event);
  }
docs: Request DaZeus to be notified of a certain type of event
  @param  {String} event Type of event to subscribe to