presto-main/src/main/java/io/prestosql/sql/planner/planprinter/OperatorHashCollisionsStats.java/OperatorHashCollisionsStats/OperatorHashCollisionsStats
class OperatorHashCollisionsStats:    public OperatorHashCollisionsStats(double weightedHashCollisions, double weightedSumSquaredHashCollisions, double weightedExpectedHashCollisions)
    {
        this.weightedHashCollisions = weightedHashCollisions;
        this.weightedSumSquaredHashCollisions = weightedSumSquaredHashCollisions;
        this.weightedExpectedHashCollisions = weightedExpectedHashCollisions;
    }