anchor.diff:      final summary = new Summary(rawTotals.values);
       for (String package in rawTotals.keys) {
         final int raw = rawTotals[package];
  -      _values[package] = summary.bezierScore(raw);
  +      _values[package] = summary.bezierScore(raw).toDouble();
       }
       _logger.info('Popularity updated for ${items.length} packages.');
     }
  
positive.code:       if (pv == null) continue;
  
        final analysisView = analysisViews[i];
        final double popularity =
            popularityStorage.lookup(pv.package) ?? mockScores[pv.package] ?? 0.0;
        final double maintenance = _calculateMaintenance(p, pv);
  
        results[i] = new PackageDocument(
  
negative.code:   final Storage storage;
    final Bucket bucket;
  
    final _values = <String, double>{};
  
    PopularityStorage(this.storage, this.bucket);
  
  