presto-client/src/main/java/io/prestosql/client/StageStats.java/StageStats/build
class StageStats:        public StageStats build()
        {
            return new StageStats(
                    stageId,
                    state,
                    done,
                    nodes,
                    totalSplits,
                    queuedSplits,
                    runningSplits,
                    completedSplits,
                    cpuTimeMillis,
                    wallTimeMillis,
                    processedRows,
                    processedBytes,
                    subStages);
        }