code: @InternalApi
    public static RowCell create(
        @Nonnull String family,
        @Nonnull ByteString qualifier,
        long timestamp,
        @Nonnull List<String> labels,
        @Nonnull ByteString value) {
      return new AutoValue_RowCell(family, qualifier, timestamp, value, labels);
    }
docs: Creates a new instance of the {@link RowCell}.