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

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

Fatal logs a message at level Fatal on the standard logger then the process will exit with status set to 1.

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

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

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

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

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