Init Init Logger maxBackupFileSize, megabytes maxAgeForBackupFile, days.

LogDebug logs a message at level Debug on the standard logger.

LogError logs a message at level Error on the standard logger.

LogInfo logs a message at level Info on the standard logger.

LogPanic logs a message at level Panic on the standard logger.

LogWarn logs a message at level Warn on the standard logger.

Wrap error.

CoreError custom error.