package log type BasicLogger interface { Print(i ...interface{}) Printf(format string, args ...interface{}) Fatal(i ...interface{}) Fatalf(format string, args ...interface{}) Panic(i ...interface{}) Panicf(format string, args ...interface{}) } type LeveledLogger interface { BasicLogger Debug(i ...interface{}) Debugf(format string, args ...interface{}) Info(i ...interface{}) Infof(format string, args ...interface{}) Warn(i ...interface{}) Warnf(format string, args ...interface{}) Error(i ...interface{}) Errorf(format string, args ...interface{}) }