import "github.com/juju/names" func main() { unitTagId := names.NewUnitTagId("wordpress/0") fmt.Println(unitTagId.String()) // prints "wordpress/0" fmt.Println(unitTagId.Id()) // prints "0" }In this example, we create a `UnitTagId` object using the `NewUnitTagId` factory method, passing in the string "wordpress/0" as the unit name and number. We then call the `String` and `Id` methods on the `UnitTagId` object to print out its string representation and numeric ID, respectively.