code: public static <T> TypedDataSet<T> data(DataSource dataSource, Conversion<T> conv) {
      return new TypedDataSet<>(dataSource, conv);
    }
docs: Create a new typed data set.
  @param <T> Type of objects.
  @param dataSource Data source.
  @param conv Conversion function.
  @return A new typed data set for the given source.