code: func (r Metric_Tracking_Object) GetMetricDataTypes() (resp []datatypes.Container_Metric_Data_Type, err error) {
  	err = r.Session.DoRequest("SoftLayer_Metric_Tracking_Object", "getMetricDataTypes", nil, &r.Options, &resp)
  	return
  }
docs: // Returns a collection of metric data types that can be retrieved for a metric tracking object.