docs: @VisibleForTesting
    static Distribution createDistribution(io.opencensus.metrics.export.Distribution distribution) {
      Distribution.Builder builder =
          Distribution.newBuilder()
              .setBucketOptions(createBucketOptions(distribution.getBucketOptions()))
              .setCount(distribution.getCount())
              .setMean(
                  distribution.getCount() == 0 ? 0 : distribution.getSum() / distribution.getCount())
              .setSumOfSquaredDeviation(distribution.getSumOfSquaredDeviations());
      setBucketCountsAndExemplars(distribution.getBuckets(), builder);
      return builder.build();
    }