docs: public static AggregationIterator create(final List<Span> spans,
                                             final long start_time,
                                             final long end_time,
                                             final Aggregator aggregator,
                                             final Interpolation method,
                                             final Aggregator downsampler,
                                             final long sample_interval_ms,
                                             final boolean rate,
                                             final RateOptions rate_options) {
      return create(spans, start_time, end_time, aggregator, method, downsampler,
          sample_interval_ms, rate, rate_options, null);
    }