@Override
      protected Duration featureValueOf(SpanData item) {
        return Duration.ofNanos(item.getEndEpochNanos() - item.getStartEpochNanos());
      }
Helper methods for matching against instances of {@link SpanData}.
hbase-client/src/test/java/org/apache/hadoop/hbase/client/trace/hamcrest/SpanDataMatchers.java