var (
ErrRenAll = errors.New("cannot rename everyone, only people tied to specific roles can be renamed")
ErrNoName = errors.New("a name of the person must be provided")
ErrNoReplace = errors.New("a replacement name must be provided")
ErrRole = errors.New("unknown role")
)
const (
Everyone Role = iota// Everyone displays all people. Artists // Artists are graphic or video. Coders // Coders are programmers. Musicians // Musicians create music or audio. Writers // Writers for the documents.)