| 12345678910111213141516171819202122232425 | package svcimport (	"fmt"	"log"	"os")type Logger interface {	Println(f string, v ...any)}type logger struct {	log *log.Logger}func (l *logger) Println(f string, v ...any) {	l.log.Println(fmt.Sprintf(f, v...))}var (	DefaultLogger = &logger{		log: log.New(os.Stdout, "", log.LstdFlags),	})
 |