CritValue sets the value for the field used to indicate the critical log level.

DebugValue sets the value for the field used to indicate the debug log level.

ErrorValue sets the value for the field used to indicate the error log level.

InfoValue sets the value for the field used to indicate the info log level.

Key sets the key for the field used to indicate log level.

New creates a new leveled logger, wrapping the passed logger.

WarnValue sets the value for the field used to indicate the warning log level.

Levels provides a leveled logging wrapper around a logger.

Option sets a parameter for leveled loggers.