flog

func Debug(msg string, fields ...interface{})

func Debugf(format string, a ...interface{})

func Error(err error, fields ...interface{})

func Errorf(format string, a ...interface{})

func Fatal(err error, fields ...interface{})

func Fatalf(format string, a ...interface{})

func Field(key string, value interface{}) interface{}

func Info(msg string, fields ...interface{})

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

func Panic(err error, fields ...interface{})

func Panicf(format string, a ...interface{})

func Warn(msg string, fields ...interface{})

func Warnf(format string, a ...interface{})