def setLoggerLevel(self, logger, level):
        """
        Returns the logging level for the inputed logger.
        
        :param      logger | <logging.Logger> || <str>
                    level  | <logging.LEVEL>
        """
        if level == logging.NOTSET:
            self.removeLogger(logger)
            self.handler().setLoggerLevel(logger, level)
            return
            
        if isinstance(logger, logging.Logger):
            logger = logger.name
        
        if not logger in self._loggers:
            self.addLogger(logger, level)
        else:
            self.handler().setLoggerLevel(logger, level)