code: func (r Hardware_Router) GetMetricTrackingObject() (resp datatypes.Metric_Tracking_Object_HardwareServer, err error) {
  	err = r.Session.DoRequest("SoftLayer_Hardware_Router", "getMetricTrackingObject", nil, &r.Options, &resp)
  	return
  }
docs: // Retrieve A piece of hardware's metric tracking object.