def create_default_logger()
      logger = Logger.new(STDOUT)
      logger.level = get_log_level_for_string(
          @config.read('library.log_level', 'INFO'))
      return logger
    end
def create_default_logger()
      logger = Logger.new(STDOUT)
      logger.level = get_log_level_for_string(
          @config.read('library.log_level', 'INFO'))
      return logger
    end
Auxiliary method to create a default Logger.