docs: protected List<ExpandDataTrunk> getExpansionBranches(final Collection<String> expansionNames) {
          if (expansionNames != null) {
              final List<ExpandDataTrunk> expandDataTrunks = new ArrayList<ExpandDataTrunk>();
              for (final String subExpansionName : expansionNames) {
                  expandDataTrunks.add(new ExpandDataTrunk(new ExpandDataDetails(subExpansionName)));
              }
  
              return expandDataTrunks;
          }
  
          return null;
      }