code: @Override
      protected Content getNavSummaryLink(TypeElement typeElement, boolean link) {
          if (link) {
              if (typeElement == null) {
                  return writer.getHyperLink(
                          SectionName.NESTED_CLASS_SUMMARY,
                          contents.navNested);
              } else {
                  return writer.getHyperLink(
                          SectionName.NESTED_CLASSES_INHERITANCE,
                          utils.getFullyQualifiedName(typeElement), contents.navNested);
              }
          } else {
              return contents.navNested;
          }
      }
docs: {@inheritDoc}