code: @Benchmark
    @BenchmarkMode(Mode.AverageTime)
    @OutputTimeUnit(TimeUnit.NANOSECONDS)
    public Span addAnnotationWithAnnotation(Data data) {
      Span span = data.annotationSpanAnnotation;
      Annotation annotation =
          Annotation.fromDescriptionAndAttributes(ANNOTATION_DESCRIPTION, data.attributeMap);
      span.addAnnotation(annotation);
      return span;
    }
docs: Add an annotation with an annotation.