Cleanup does something windup for logger, like closing, flushing, etc.

Debugf logs messages at DEBUG level.

Errorf logs messages at ERROR level.

Fatalf logs messages at FATAL level.

Infof logs messages at INFO level.

Init initializes the inside default logger of client.

Level returns the logging level.

LogErr prints err if it's not nil.

SetupLogger setups the logger by the Logger interface.

SetupLoggerWithPath setups the logger by local file path.

Warnf logs messages at WARN level.

DefaultLogger is the default logger inside the tbuspp client.

Logger is used for logging formatted messages.