Debug displays a message, level DEBUG.

Debugf displays a message with formatting, level DEBUG.

Debugw displays a message with typed context args, level DEBUG.

Error displays a message, level ERROR.

Errorf displays a message with formatting, level ERROR.

Errorw displays a message with typed context args, level ERROR.

Fatal displays a message, level FATAL.

Fatalf displays a message with formatting, level FATAL.

Fatalw displays a message with typed context args, level FATAL.

GetInstance returns logger instance.

Info displays a message, level INFO.

Infof displays a message with formatting, level INFO.

Infow displays a message with typed context args, level INFO.

Print is deprecated.

Printf is deprecated.

Println is deprecated.

Warn displays a message, level WARN.

Warnf displays a message with formatting, level WARN.

Warnw displays a message with typed context args, level WARN.