code: private static String getWorkerFormattedTierValues(Map<String, Map<String, String>> map,
        String workerName) {
      return map.values().stream().map((tierMap)
          -> (String.format("%-14s", tierMap.getOrDefault(workerName, "-"))))
          .collect(Collectors.joining(""));
    }
docs: Gets the formatted tier values of a worker.
  
  @param map the map to get worker tier values from
  @param workerName name of the worker
  @return the formatted tier values of the input worker name