code: func (r Virtual_Guest) GetBandwidthDataByDate(startDateTime *datatypes.Time, endDateTime *datatypes.Time, networkType *string) (resp []datatypes.Metric_Tracking_Object_Data, err error) {
  	params := []interface{}{
  		startDateTime,
  		endDateTime,
  		networkType,
  	}
  	err = r.Session.DoRequest("SoftLayer_Virtual_Guest", "getBandwidthDataByDate", params, &r.Options, &resp)
  	return
  }
docs: // Use this method when needing the metric data for bandwidth for a single guest.  It will gather the correct input parameters based on the date ranges