presto-main/src/main/java/io/prestosql/operator/TaskStats.java/TaskStats/summarize
class TaskStats:    public TaskStats summarize()
    {
        return new TaskStats(
                createTime,
                firstStartTime,
                lastStartTime,
                lastEndTime,
                endTime,
                elapsedTime,
                queuedTime,
                totalDrivers,
                queuedDrivers,
                queuedPartitionedDrivers,
                runningDrivers,
                runningPartitionedDrivers,
                blockedDrivers,
                completedDrivers,
                cumulativeUserMemory,
                userMemoryReservation,
                revocableMemoryReservation,
                systemMemoryReservation,
                totalScheduledTime,
                totalCpuTime,
                totalBlockedTime,
                fullyBlocked,
                blockedReasons,
                physicalInputDataSize,
                physicalInputPositions,
                internalNetworkInputDataSize,
                internalNetworkInputPositions,
                rawInputDataSize,
                rawInputPositions,
                processedInputDataSize,
                processedInputPositions,
                outputDataSize,
                outputPositions,
                physicalWrittenDataSize,
                fullGcCount,
                fullGcTime,
                ImmutableList.of());
    }