docs: @Nonnull
    public static Split split(@Nonnull RowSet rowSet, @Nonnull ByteString splitPoint) {
      ImmutableSortedSet<ByteString> splitPoints =
          ImmutableSortedSet.orderedBy(ByteStringComparator.INSTANCE).add(splitPoint).build();
  
      List<RowSet> splits = split(rowSet, splitPoints, true);
  
      return Split.of(splits.get(0), splits.get(1));
    }