logger

type Logger interface {
	Info(args ...interface{})
	Infof(format string, args ...interface{})
	Warn(args ...interface{})
	Warnf(format string, args ...interface{})
	Error(args ...interface{})
	Errorf(format string, args ...interface{})
	Fatal(args ...interface{})
	Fatalf(format string, args ...interface{})
	Panic(args ...interface{})
	Panicf(format string, args ...interface{})
}

type LoggerImpl struct {
	*log.Entry
}