Debug logs DebugLevel message.

Debugf logs DebugLevel message by format.

Error logs ErrorLevel message.

Errorf logs ErrorLevel message by format.

Fatal log FatalLevel message.

Fatalf log FatalLevel message by format.

Info logs InfoLevel message.

Infof logs InfoLevel message by format.

Panic logs PanicLevel message.

Panicf logs PanicLevel message by format.

Setup setups logger.

Trace logs TraceLevel message.

Tracef logs TraceLevel message by format.

Warn logs WarnLevel message.

Warnf logs WarnLevel message.

Options contains logger options.

TextFormatter provides.