} else {
            String lowerBound = process.substring(0, index).trim();
            String upperBound = process.substring(index + 1).trim();

            ArtifactVersion lowerVersion = null;
            if (!lowerBound.isEmpty()) {
                lowerVersion = new DefaultArtifactVersion(lowerBound);
            }
            ArtifactVersion upperVersion = null;

      @ParametricNullness E lowerBound,
      BoundType lowerBoundType,
      @ParametricNullness E upperBound,
      BoundType upperBoundType) {
    return tailMultiset(lowerBound, lowerBoundType).headMultiset(upperBound, upperBoundType);
  }

  @Override
  public SortedMultiset<E> tailMultiset(@ParametricNullness E lowerBound, BoundType boundType) {

        SortedLists.binarySearch(
            ranges,
            Range::upperBound,
            range.lowerBound,
            KeyPresentBehavior.FIRST_AFTER,
            KeyAbsentBehavior.NEXT_HIGHER);
    int upperIndex =
        SortedLists.binarySearch(
            ranges,
            Range::lowerBound,
            range.upperBound,
            KeyPresentBehavior.ANY_PRESENT,

      @ParametricNullness E lowerBound,
      BoundType lowerBoundType,
      @ParametricNullness E upperBound,
      BoundType upperBoundType) {
    return tailMultiset(lowerBound, lowerBoundType).headMultiset(upperBound, upperBoundType);
  }

  @Override
  public SortedMultiset<E> tailMultiset(@ParametricNullness E lowerBound, BoundType boundType) {

    }

    @Override
    public Range<C> get(int index) {
      checkElementIndex(index, size);

      Cut<C> lowerBound;
      if (positiveBoundedBelow) {
        lowerBound = (index == 0) ? Cut.belowAll() : ranges.get(index - 1).upperBound;
      } else {
        lowerBound = ranges.get(index).upperBound;
      }

      Cut<C> upperBound;
      if (positiveBoundedAbove && index == size - 1) {

					err = msgp.WrapError(err, "UpperBound")
					return
				}
				z.UpperBound = BatchJobSize(zb0002)
			}
		case "LowerBound":
			{
				var zb0003 int64
				zb0003, err = dc.ReadInt64()
				if err != nil {
					err = msgp.WrapError(err, "LowerBound")
					return
				}
				z.LowerBound = BatchJobSize(zb0003)
			}
		default:
			err = dc.Skip()
			if err != nil {
				err = msgp.WrapError(err)

    return forward.tailMultiset(upperBound, boundType).descendingMultiset();
  }

  @Override
  public ImmutableSortedMultiset<E> tailMultiset(E lowerBound, BoundType boundType) {
    return forward.headMultiset(lowerBound, boundType).descendingMultiset();
  }

  @Override
  boolean isPartialView() {
    return forward.isPartialView();
  }

  // redeclare to help optimizers with b/310253115

  SortedMultiset<E> descendingMultiset();

  SortedMultiset<E> headMultiset(E upperBound, BoundType boundType);

  SortedMultiset<E> subMultiset(
      E lowerBound, BoundType lowerBoundType, E upperBound, BoundType upperBoundType);

  SortedMultiset<E> tailMultiset(E lowerBound, BoundType boundType);

    return forward.tailMultiset(upperBound, boundType).descendingMultiset();
  }

  @Override
  public ImmutableSortedMultiset<E> tailMultiset(E lowerBound, BoundType boundType) {
    return forward.headMultiset(lowerBound, boundType).descendingMultiset();
  }

  @Override
  boolean isPartialView() {
    return forward.isPartialView();
  }

  // redeclare to help optimizers with b/310253115

        SortedLists.binarySearch(
            ranges,
            Range::upperBound,
            range.lowerBound,
            KeyPresentBehavior.FIRST_AFTER,
            KeyAbsentBehavior.NEXT_HIGHER);
    int upperIndex =
        SortedLists.binarySearch(
            ranges,
            Range::lowerBound,
            range.upperBound,
            KeyPresentBehavior.ANY_PRESENT,