package log type Logger interface { Printf(s string, v ...interface{}) Panicf(s string, v ...interface{}) Fatalf(s string, v ...interface{}) Infof(s string, v ...interface{}) Eventf(s string, v ...interface{}) Warnf(s string, v ...interface{}) Debugf(s string, v ...interface{}) Highlightf(s string, v ...interface{}) Errorf(s string, v ...interface{}) }