docs: @Benchmark
    @BenchmarkMode(Mode.SampleTime)
    @OutputTimeUnit(TimeUnit.NANOSECONDS)
    public Span startEndSampledRootSpan(Data data) {
      Span span = data.tracer.spanBuilder(SPAN_NAME).setSampler(Samplers.alwaysSample()).startSpan();
      span.end();
      return span;
    }