code: @Override
      protected String[] getAppendSegments(SeparatorSegmentedLepKey baseKey,
                                           LepMethod method,
                                           LepManagerService managerService) {
          // function key
          String translatedFuncKey = translateToLepConvention(getRequiredStrParam(method, PARAM_FUNCTION_KEY));
          return new String[]{translatedFuncKey};
      }
docs: {@inheritDoc}