@Override
      @ParametricNullness
      V transform(Cell<R, C, V> cell) {
        return cell.getValue();
      }
    };
  }

  Spliterator<V> valuesSpliterator() {
    return CollectSpliterators.map(cellSpliterator(), Table.Cell::getValue);
  }

  @WeakOuter
  private final class Values extends AbstractCollection<V> {
    @Override