logger.go
func (dl *DefaultLogger) Critical(message string, params ...interface{}) {
	dl.logger.Criticalf(fmt.Sprintf("%s %s", caller(), message), params...)
}
func (dl *DefaultLogger) Critical(message string, params ...interface{}) {
	dl.logger.Criticalf(fmt.Sprintf("%s %s", caller(), message), params...)
}
func ( dl * DefaultLogger ) Critical ( message string , params ... interface { } ) { dl . logger . Criticalf ( fmt . Sprintf ( " " , caller ( ) , message ) , params ... ) }
// Critical formats a given message according to given params to log with level Critical.
Critical formats a given message according to given params to log with level Critical .