code: func (r Virtual_Guest_Block_Device_Template_Group) AddLocations(locations []datatypes.Location) (resp bool, err error) {
  	params := []interface{}{
  		locations,
  	}
  	err = r.Session.DoRequest("SoftLayer_Virtual_Guest_Block_Device_Template_Group", "addLocations", params, &r.Options, &resp)
  	return
  }
docs: // This method will create transaction(s) to add available locations to an archive image template.