code: func (r Network_Storage) GetGraph(startDate *datatypes.Time, endDate *datatypes.Time, typ *string) (resp datatypes.Container_Bandwidth_GraphOutputs, err error) {
  	params := []interface{}{
  		startDate,
  		endDate,
  		typ,
  	}
  	err = r.Session.DoRequest("SoftLayer_Network_Storage", "getGraph", params, &r.Options, &resp)
  	return
  }
docs: // {{CloudLayerOnlyMethod}}
  //
  // getGraph() retrieves a Storage account's usage and returns a PNG graph image, title, and the minimum and maximum dates included in the graphed date range. Virtual Server storage accounts can also graph upload and download bandwidth usage.