code: func newDefaultLogger() *Logger {
  	return NewLogger("default", DEBUG, []Handler{
  		&WriteHandler{
  			Level:     DEBUG,
  			Formatter: &StandardFormatter{TimeFormat: StandardTimeFormat},
  			Writer:    os.Stderr,
  		},
  	}, 0)
  }
docs: // newDefaultLogger creates new logger that writes log messages to
  // standard output in DEBUG level. This logger is automatically created and
  // this function needs to be called only if all loggers were removed
  // and default logger needs recreating.