package tunnel type Logger interface { Trace(args ...interface{}) Tracef(format string, args ...interface{}) Debug(args ...interface{}) Debugf(format string, args ...interface{}) Info(args ...interface{}) Infof(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 logger struct{} func (l *logger) Trace(args ...interface{}) func (l *logger) Tracef(format string, args ...interface{}) func (l *logger) Debug(args ...interface{}) func (l *logger) Debugf(format string, args ...interface{}) func (l *logger) Info(args ...interface{}) func (l *logger) Infof(format string, args ...interface{}) func (l *logger) Error(args ...interface{}) func (l *logger) Errorf(format string, args ...interface{}) func (l *logger) Fatal(args ...interface{}) func (l *logger) Fatalf(format string, args ...interface{}) func (l *logger) Panic(args ...interface{}) func (l *logger) Panicf(format string, args ...interface{}) var DefaultLogger = &logger{}