code: public final Set<T> values()
      {
          Set<T> convertedValues = new HashSet<>();
          for (BinaryValue baw : values)
          {
              convertedValues.add(convert(baw));
          }
          return Collections.unmodifiableSet(convertedValues);
      }
docs: Return the values in this index.
  The returned {@code Set} is unmodifiable.
  @return an unmodifiable view of the values in this index.