mac address insert error: SQLSTATE 22021

[d0zer11st]

postgres returns: ERROR: invalid byte sequence for encoding "UTF8": (SQLSTATE 22021)
On trying to insert record containing mac address.

how to reproduce:

0. bob version: github.com/stephenafamo/bob v0.26.1
1. postgres 16.2
2. Table

create table example
(
    id bigint primary key generated always as identity,
    mac           macaddr not null
)

3. Trying to insert

	db, openErr := sql.Open("pgx", connectionString)
	if openErr != nil {
		log.Fatal(openErr)
	}
	defer db.Close()

	bobDB := bob.NewDB(db)

	macToTest := "1b:1b:63:84:45:e6"
	hwAddr, parseMacErr := net.ParseMAC(macToTest)
	if parseMacErr != nil {
		log.Fatal(parseMacErr)
	}
	log.Printf("parsed mac: %s", hwAddr)
	omitMacValue := omit.From(
		types.Stringer[net.HardwareAddr]{
			Val: hwAddr,
		},
	)
	exampleSetter := &models.ExampleSetter{
		Mac: omitMacValue,
	}
	_, err := models.Examples.InsertMany(ctx, bobDB, exampleSetter)
	if err != nil {
		log.Fatal(err)
	}

Generated models.ExampleSetter

// ExampleSetter is used for insert/upsert/update operations
// All values are optional, and do not have to be set
// Generated columns are not included
type ExampleSetter struct {
	Mac omit.Val[types.Stringer[net.HardwareAddr]] `db:"mac"`
}

My assumption is something wrong with types.Stringer returns []byte

bob/types/marshal.go

Lines 72 to 74 in c4cf5c1

 func (s Stringer[T]) Value() (driver.Value, error) { 
 	return []byte(s.Val), nil 
 } 

As well as it loads values.

bob/types/marshal.go

Lines 76 to 89 in c4cf5c1

 func (s *Stringer[T]) Scan(value any) error { 
 	switch x := value.(type) { 
 	case string: 
 		s.Val = T(x) 
 		return nil 
 	case []byte: 
 		s.Val = T(x) 
 		return nil 
 	case nil: 
 		return nil 
 	default: 
 		return fmt.Errorf("cannot scan type %T: %v", value, value) 
 	} 
 } 

[Stephen Afam-Osemene]

I'll take a look