Debug writes debug message message to the Logger instance.

Debugf writes formatted debug message to the Logger instance.

Error writes error message message to the Logger instance.

Errorf writes formatted error message to the Logger instance.

Info writes info message message to the Logger instance.

Infof writes formatted info message to the Logger instance.

Level retrieves current logging level form the Logger instance.

Warn writes warning message message to the Logger instance.

Warnf writes formatted warning message to the Logger instance.