logger

func Debug(message string, fields ...zap.Field)

func Debugf(message string, args ...interface{})

func Error(message string, err error)

func Errorf(message string, args ...interface{})

func Fatal(message string, fields ...zap.Field)

func Info(message string)

func Infof(format string, args ...interface{})

func Init() bytes.Buffer

func Sync() error