Returns the logging level for the inputed logger.
        
        :param      logger | <str> || <logging.Logger>

def loggerLevel(self, logger='root'):
        """
        Returns the logging level for the inputed logger.
        
        :param      logger | <str> || <logging.Logger>
        """
        if isinstance(logger, logging.Logger):
            logger = logger.name
        
        return self.handler().loggerLevel(logger)