Defines the logging level (from standard logging module) for log messages.
        :param level:           Level of logging for the file logger.
        :param console_only:    [Optional] If True then the file logger will not be affected.

def set_level(self,
                  level,
                  console_only=False):
        """
        Defines the logging level (from standard logging module) for log messages.
        :param level:           Level of logging for the file logger.
        :param console_only:    [Optional] If True then the file logger will not be affected.
        """
        self.queue.put(dill.dumps(SetLevelCommand(level=level,
                                                  console_only=console_only)))