Unlock 30% off on Manual Testing Annual Plans this Holiday Season.

Copied to Clipboard!

Automation Advisor
K6
cloud
flushHTTPTrails

How to use flushHTTPTrails method of cloud Package

Best K6 code snippet using cloud.flushHTTPTrails

output.go

Source:output.go

...215				case <-aggregationTicker.C:216					out.aggregateHTTPTrails(aggregationWaitPeriod)217				case <-out.stopAggregation:218					out.aggregateHTTPTrails(0)219					out.flushHTTPTrails()220					return221				}222			}223		}()224	}225	out.outputDone.Add(1)226	go func() {227		defer out.outputDone.Done()228		pushTicker := time.NewTicker(out.config.MetricPushInterval.TimeDuration())229		defer pushTicker.Stop()230		for {231			select {232			case <-out.stopSendingMetrics:233				return234			default:235			}236			select {237			case <-out.stopOutput:238				out.pushMetrics()239				return240			case <-pushTicker.C:241				out.pushMetrics()242			}243		}244	}()245}246// Stop gracefully stops all metric emission from the output and when all metric247// samples are emitted, it sends an API to the cloud to finish the test run.248func (out *Output) Stop() error {249	out.logger.Debug("Stopping the cloud output...")250	close(out.stopAggregation)251	out.aggregationDone.Wait() // could be a no-op, if we have never started the aggregation252	out.logger.Debug("Aggregation stopped, stopping metric emission...")253	close(out.stopOutput)254	out.outputDone.Wait()255	out.logger.Debug("Metric emission stopped, calling cloud API...")256	err := out.testFinished()257	if err != nil {258		out.logger.WithFields(logrus.Fields{"error": err}).Warn("Failed to send test finished to the cloud")259	} else {260		out.logger.Debug("Cloud output successfully stopped!")261	}262	return err263}264// Description returns the URL with the test run results.265func (out *Output) Description() string {266	return fmt.Sprintf("cloud (%s)", cloudapi.URLForResults(out.referenceID, out.config))267}268// SetRunStatus receives the latest run status from the Engine.269func (out *Output) SetRunStatus(status lib.RunStatus) {270	out.runStatus = status271}272// SetThresholds receives the thresholds before the output is Start()-ed.273func (out *Output) SetThresholds(scriptThresholds map[string]metrics.Thresholds) {274	thresholds := make(map[string][]*metrics.Threshold)275	for name, t := range scriptThresholds {276		thresholds[name] = append(thresholds[name], t.Thresholds...)277	}278	out.thresholds = thresholds279}280// SetTestRunStopCallback receives the function that stops the engine on error281func (out *Output) SetTestRunStopCallback(stopFunc func(error)) {282	out.engineStopFunc = stopFunc283}284func useCloudTags(source *httpext.Trail) *httpext.Trail {285	name, nameExist := source.Tags.Get("name")286	url, urlExist := source.Tags.Get("url")287	if !nameExist || !urlExist || name == url {288		return source289	}290	newTags := source.Tags.CloneTags()291	newTags["url"] = name292	dest := new(httpext.Trail)293	*dest = *source294	dest.Tags = metrics.IntoSampleTags(&newTags)295	dest.Samples = nil296	return dest297}298// AddMetricSamples receives a set of metric samples. This method is never299// called concurrently, so it defers as much of the work as possible to the300// asynchronous goroutines initialized in Start().301func (out *Output) AddMetricSamples(sampleContainers []metrics.SampleContainer) {302	select {303	case <-out.stopSendingMetrics:304		return305	default:306	}307	if out.referenceID == "" {308		return309	}310	newSamples := []*Sample{}311	newHTTPTrails := []*httpext.Trail{}312	for _, sampleContainer := range sampleContainers {313		switch sc := sampleContainer.(type) {314		case *httpext.Trail:315			sc = useCloudTags(sc)316			// Check if aggregation is enabled,317			if out.config.AggregationPeriod.Duration > 0 {318				newHTTPTrails = append(newHTTPTrails, sc)319			} else {320				newSamples = append(newSamples, NewSampleFromTrail(sc))321			}322		case *netext.NetTrail:323			// TODO: aggregate?324			values := map[string]float64{325				metrics.DataSentName:     float64(sc.BytesWritten),326				metrics.DataReceivedName: float64(sc.BytesRead),327			}328			if sc.FullIteration {329				values[metrics.IterationDurationName] = metrics.D(sc.EndTime.Sub(sc.StartTime))330				values[metrics.IterationsName] = 1331			}332			newSamples = append(newSamples, &Sample{333				Type:   DataTypeMap,334				Metric: "iter_li_all",335				Data: &SampleDataMap{336					Time:   toMicroSecond(sc.GetTime()),337					Tags:   sc.GetTags(),338					Values: values,339				},340			})341		default:342			for _, sample := range sampleContainer.GetSamples() {343				newSamples = append(newSamples, &Sample{344					Type:   DataTypeSingle,345					Metric: sample.Metric.Name,346					Data: &SampleDataSingle{347						Type:  sample.Metric.Type,348						Time:  toMicroSecond(sample.Time),349						Tags:  sample.Tags,350						Value: sample.Value,351					},352				})353			}354		}355	}356	if len(newSamples) > 0 || len(newHTTPTrails) > 0 {357		out.bufferMutex.Lock()358		out.bufferSamples = append(out.bufferSamples, newSamples...)359		out.bufferHTTPTrails = append(out.bufferHTTPTrails, newHTTPTrails...)360		out.bufferMutex.Unlock()361	}362}363//nolint:funlen,nestif,gocognit364func (out *Output) aggregateHTTPTrails(waitPeriod time.Duration) {365	out.bufferMutex.Lock()366	newHTTPTrails := out.bufferHTTPTrails367	out.bufferHTTPTrails = nil368	out.bufferMutex.Unlock()369	aggrPeriod := int64(out.config.AggregationPeriod.Duration)370	// Distribute all newly buffered HTTP trails into buckets and sub-buckets371	// this key is here specifically to not incur more allocations then necessary372	// if you change this code please run the benchmarks and add the results to the commit message373	var subBucketKey [3]string374	for _, trail := range newHTTPTrails {375		trailTags := trail.GetTags()376		bucketID := trail.GetTime().UnixNano() / aggrPeriod377		// Get or create a time bucket for that trail period378		bucket, ok := out.aggrBuckets[bucketID]379		if !ok {380			bucket = make(map[[3]string]aggregationBucket)381			out.aggrBuckets[bucketID] = bucket382		}383		subBucketKey[0], _ = trailTags.Get("name")384		subBucketKey[1], _ = trailTags.Get("group")385		subBucketKey[2], _ = trailTags.Get("status")386		subBucket, ok := bucket[subBucketKey]387		if !ok {388			subBucket = aggregationBucket{}389			bucket[subBucketKey] = subBucket390		}391		// Either use an existing subbucket key or use the trail tags as a new one392		subSubBucketKey := trailTags393		subSubBucket, ok := subBucket[subSubBucketKey]394		if !ok {395			for sbTags, sb := range subBucket {396				if trailTags.IsEqual(sbTags) {397					subSubBucketKey = sbTags398					subSubBucket = sb399					break400				}401			}402		}403		subBucket[subSubBucketKey] = append(subSubBucket, trail)404	}405	// Which buckets are still new and we'll wait for trails to accumulate before aggregating406	bucketCutoffID := time.Now().Add(-waitPeriod).UnixNano() / aggrPeriod407	iqrRadius := out.config.AggregationOutlierIqrRadius.Float64408	iqrLowerCoef := out.config.AggregationOutlierIqrCoefLower.Float64409	iqrUpperCoef := out.config.AggregationOutlierIqrCoefUpper.Float64410	newSamples := []*Sample{}411	// Handle all aggregation buckets older than bucketCutoffID412	for bucketID, subBuckets := range out.aggrBuckets {413		if bucketID > bucketCutoffID {414			continue415		}416		for _, subBucket := range subBuckets {417			for tags, httpTrails := range subBucket {418				// start := time.Now() // this is in a combination with the log at the end419				trailCount := int64(len(httpTrails))420				if trailCount < out.config.AggregationMinSamples.Int64 {421					for _, trail := range httpTrails {422						newSamples = append(newSamples, NewSampleFromTrail(trail))423					}424					continue425				}426				aggrData := &SampleDataAggregatedHTTPReqs{427					Time: toMicroSecond(time.Unix(0, bucketID*aggrPeriod+aggrPeriod/2)),428					Type: "aggregated_trend",429					Tags: tags,430				}431				if out.config.AggregationSkipOutlierDetection.Bool {432					// Simply add up all HTTP trails, no outlier detection433					for _, trail := range httpTrails {434						aggrData.Add(trail)435					}436				} else {437					connDurations := make(durations, trailCount)438					reqDurations := make(durations, trailCount)439					for i, trail := range httpTrails {440						connDurations[i] = trail.ConnDuration441						reqDurations[i] = trail.Duration442					}443					var minConnDur, maxConnDur, minReqDur, maxReqDur time.Duration444					if trailCount < out.config.AggregationOutlierAlgoThreshold.Int64 {445						// Since there are fewer samples, we'll use the interpolation-enabled and446						// more precise sorting-based algorithm447						minConnDur, maxConnDur = connDurations.SortGetNormalBounds(iqrRadius, iqrLowerCoef, iqrUpperCoef, true)448						minReqDur, maxReqDur = reqDurations.SortGetNormalBounds(iqrRadius, iqrLowerCoef, iqrUpperCoef, true)449					} else {450						minConnDur, maxConnDur = connDurations.SelectGetNormalBounds(iqrRadius, iqrLowerCoef, iqrUpperCoef)451						minReqDur, maxReqDur = reqDurations.SelectGetNormalBounds(iqrRadius, iqrLowerCoef, iqrUpperCoef)452					}453					for _, trail := range httpTrails {454						if trail.ConnDuration < minConnDur ||455							trail.ConnDuration > maxConnDur ||456							trail.Duration < minReqDur ||457							trail.Duration > maxReqDur {458							// Seems like an outlier, add it as a standalone metric459							newSamples = append(newSamples, NewSampleFromTrail(trail))460						} else {461							// Aggregate the trail462							aggrData.Add(trail)463						}464					}465				}466				aggrData.CalcAverages()467				if aggrData.Count > 0 {468					/*469						out.logger.WithFields(logrus.Fields{470							"http_samples": aggrData.Count,471							"ratio":        fmt.Sprintf("%.2f", float64(aggrData.Count)/float64(trailCount)),472							"t":            time.Since(start),473						}).Debug("Aggregated HTTP metrics")474					//*/475					newSamples = append(newSamples, &Sample{476						Type:   DataTypeAggregatedHTTPReqs,477						Metric: "http_req_li_all",478						Data:   aggrData,479					})480				}481			}482		}483		delete(out.aggrBuckets, bucketID)484	}485	if len(newSamples) > 0 {486		out.bufferMutex.Lock()487		out.bufferSamples = append(out.bufferSamples, newSamples...)488		out.bufferMutex.Unlock()489	}490}491func (out *Output) flushHTTPTrails() {492	out.bufferMutex.Lock()493	defer out.bufferMutex.Unlock()494	newSamples := []*Sample{}495	for _, trail := range out.bufferHTTPTrails {496		newSamples = append(newSamples, NewSampleFromTrail(trail))497	}498	for _, bucket := range out.aggrBuckets {499		for _, subBucket := range bucket {500			for _, trails := range subBucket {501				for _, trail := range trails {502					newSamples = append(newSamples, NewSampleFromTrail(trail))503				}504			}505		}...

collector.go

Source:collector.go

...188				case <-aggregationTicker.C:189					c.aggregateHTTPTrails(aggregationWaitPeriod)190				case <-ctx.Done():191					c.aggregateHTTPTrails(0)192					c.flushHTTPTrails()193					close(signalQuit)194					return195				}196			}197		}()198	}199	defer func() {200		wg.Wait()201		c.testFinished()202	}()203	pushTicker := time.NewTicker(time.Duration(c.config.MetricPushInterval.Duration))204	for {205		select {206		case <-c.stopSendingMetricsCh:207			return208		default:209		}210		select {211		case <-quit:212			c.pushMetrics()213			return214		case <-pushTicker.C:215			c.pushMetrics()216		}217	}218}219func useCloudTags(source *httpext.Trail) *httpext.Trail {220	name, nameExist := source.Tags.Get("name")221	url, urlExist := source.Tags.Get("url")222	if !nameExist || !urlExist || name == url {223		return source224	}225	newTags := source.Tags.CloneTags()226	newTags["url"] = name227	dest := new(httpext.Trail)228	*dest = *source229	dest.Tags = stats.IntoSampleTags(&newTags)230	dest.Samples = nil231	return dest232}233// Collect receives a set of samples. This method is never called concurrently, and only while234// the context for Run() is valid, but should defer as much work as possible to Run().235func (c *Collector) Collect(sampleContainers []stats.SampleContainer) {236	select {237	case <-c.stopSendingMetricsCh:238		return239	default:240	}241	if c.referenceID == "" {242		return243	}244	newSamples := []*Sample{}245	newHTTPTrails := []*httpext.Trail{}246	for _, sampleContainer := range sampleContainers {247		switch sc := sampleContainer.(type) {248		case *httpext.Trail:249			sc = useCloudTags(sc)250			// Check if aggregation is enabled,251			if c.config.AggregationPeriod.Duration > 0 {252				newHTTPTrails = append(newHTTPTrails, sc)253			} else {254				newSamples = append(newSamples, NewSampleFromTrail(sc))255			}256		case *netext.NetTrail:257			//TODO: aggregate?258			values := map[string]float64{259				metrics.DataSent.Name:     float64(sc.BytesWritten),260				metrics.DataReceived.Name: float64(sc.BytesRead),261			}262			if sc.FullIteration {263				values[metrics.IterationDuration.Name] = stats.D(sc.EndTime.Sub(sc.StartTime))264				values[metrics.Iterations.Name] = 1265			}266			newSamples = append(newSamples, &Sample{267				Type:   DataTypeMap,268				Metric: "iter_li_all",269				Data: &SampleDataMap{270					Time:   Timestamp(sc.GetTime()),271					Tags:   sc.GetTags(),272					Values: values,273				}})274		default:275			for _, sample := range sampleContainer.GetSamples() {276				newSamples = append(newSamples, &Sample{277					Type:   DataTypeSingle,278					Metric: sample.Metric.Name,279					Data: &SampleDataSingle{280						Type:  sample.Metric.Type,281						Time:  Timestamp(sample.Time),282						Tags:  sample.Tags,283						Value: sample.Value,284					},285				})286			}287		}288	}289	if len(newSamples) > 0 || len(newHTTPTrails) > 0 {290		c.bufferMutex.Lock()291		c.bufferSamples = append(c.bufferSamples, newSamples...)292		c.bufferHTTPTrails = append(c.bufferHTTPTrails, newHTTPTrails...)293		c.bufferMutex.Unlock()294	}295}296func (c *Collector) aggregateHTTPTrails(waitPeriod time.Duration) {297	c.bufferMutex.Lock()298	newHTTPTrails := c.bufferHTTPTrails299	c.bufferHTTPTrails = nil300	c.bufferMutex.Unlock()301	aggrPeriod := int64(c.config.AggregationPeriod.Duration)302	// Distribute all newly buffered HTTP trails into buckets and sub-buckets303	for _, trail := range newHTTPTrails {304		trailTags := trail.GetTags()305		bucketID := trail.GetTime().UnixNano() / aggrPeriod306		// Get or create a time bucket for that trail period307		bucket, ok := c.aggrBuckets[bucketID]308		if !ok {309			bucket = aggregationBucket{}310			c.aggrBuckets[bucketID] = bucket311		}312		// Either use an existing subbucket key or use the trail tags as a new one313		subBucketKey := trailTags314		subBucket, ok := bucket[subBucketKey]315		if !ok {316			for sbTags, sb := range bucket {317				if trailTags.IsEqual(sbTags) {318					subBucketKey = sbTags319					subBucket = sb320					break321				}322			}323		}324		bucket[subBucketKey] = append(subBucket, trail)325	}326	// Which buckets are still new and we'll wait for trails to accumulate before aggregating327	bucketCutoffID := time.Now().Add(-waitPeriod).UnixNano() / aggrPeriod328	iqrRadius := c.config.AggregationOutlierIqrRadius.Float64329	iqrLowerCoef := c.config.AggregationOutlierIqrCoefLower.Float64330	iqrUpperCoef := c.config.AggregationOutlierIqrCoefUpper.Float64331	newSamples := []*Sample{}332	// Handle all aggregation buckets older than bucketCutoffID333	for bucketID, subBuckets := range c.aggrBuckets {334		if bucketID > bucketCutoffID {335			continue336		}337		for tags, httpTrails := range subBuckets {338			trailCount := int64(len(httpTrails))339			if trailCount < c.config.AggregationMinSamples.Int64 {340				for _, trail := range httpTrails {341					newSamples = append(newSamples, NewSampleFromTrail(trail))342				}343				continue344			}345			aggrData := &SampleDataAggregatedHTTPReqs{346				Time: Timestamp(time.Unix(0, bucketID*aggrPeriod+aggrPeriod/2)),347				Type: "aggregated_trend",348				Tags: tags,349			}350			if c.config.AggregationSkipOutlierDetection.Bool {351				// Simply add up all HTTP trails, no outlier detection352				for _, trail := range httpTrails {353					aggrData.Add(trail)354				}355			} else {356				connDurations := make(durations, trailCount)357				reqDurations := make(durations, trailCount)358				for i, trail := range httpTrails {359					connDurations[i] = trail.ConnDuration360					reqDurations[i] = trail.Duration361				}362				var minConnDur, maxConnDur, minReqDur, maxReqDur time.Duration363				if trailCount < c.config.AggregationOutlierAlgoThreshold.Int64 {364					// Since there are fewer samples, we'll use the interpolation-enabled and365					// more precise sorting-based algorithm366					minConnDur, maxConnDur = connDurations.SortGetNormalBounds(iqrRadius, iqrLowerCoef, iqrUpperCoef, true)367					minReqDur, maxReqDur = reqDurations.SortGetNormalBounds(iqrRadius, iqrLowerCoef, iqrUpperCoef, true)368				} else {369					minConnDur, maxConnDur = connDurations.SelectGetNormalBounds(iqrRadius, iqrLowerCoef, iqrUpperCoef)370					minReqDur, maxReqDur = reqDurations.SelectGetNormalBounds(iqrRadius, iqrLowerCoef, iqrUpperCoef)371				}372				for _, trail := range httpTrails {373					if trail.ConnDuration < minConnDur ||374						trail.ConnDuration > maxConnDur ||375						trail.Duration < minReqDur ||376						trail.Duration > maxReqDur {377						// Seems like an outlier, add it as a standalone metric378						newSamples = append(newSamples, NewSampleFromTrail(trail))379					} else {380						// Aggregate the trail381						aggrData.Add(trail)382					}383				}384			}385			aggrData.CalcAverages()386			if aggrData.Count > 0 {387				logrus.WithFields(logrus.Fields{388					"http_samples": aggrData.Count,389				}).Debug("Aggregated HTTP metrics")390				newSamples = append(newSamples, &Sample{391					Type:   DataTypeAggregatedHTTPReqs,392					Metric: "http_req_li_all",393					Data:   aggrData,394				})395			}396		}397		delete(c.aggrBuckets, bucketID)398	}399	if len(newSamples) > 0 {400		c.bufferMutex.Lock()401		c.bufferSamples = append(c.bufferSamples, newSamples...)402		c.bufferMutex.Unlock()403	}404}405func (c *Collector) flushHTTPTrails() {406	c.bufferMutex.Lock()407	defer c.bufferMutex.Unlock()408	newSamples := []*Sample{}409	for _, trail := range c.bufferHTTPTrails {410		newSamples = append(newSamples, NewSampleFromTrail(trail))411	}412	for _, bucket := range c.aggrBuckets {413		for _, trails := range bucket {414			for _, trail := range trails {415				newSamples = append(newSamples, NewSampleFromTrail(trail))416			}417		}418	}419	c.bufferHTTPTrails = nil...

flushHTTPTrails

Using AI Code Generation

1import (2func main() {3	fmt.Println("Hello World")4	b, err := beat.NewBeat("testbeat", "0.0.1", beat.BeatOptions{})5	if err != nil {6		fmt.Println(err)7	}8	pipeline, err := b.Publisher.ConnectWith(beat.ClientConfig{9		Processing: beat.ProcessingConfig{10		},11		Queue: queue.Config{12		},13		Output: outputs.Load(b.Info, nil, common.NewConfig())14	})15	if err != nil {16		fmt.Println(err)17	}18	event := beat.Event{19		Timestamp: time.Now(),20		Fields: common.MapStr{21		},22	}23	pipeline.Publish(event)24	pipeline.Close()25	b.Stop()26}27import (28func main() {29	fmt.Println("Hello World")30	b, err := beat.NewBeat("testbeat", "0.0.1", beat.BeatOptions{})31	if err != nil {32		fmt.Println(err)

flushHTTPTrails

Using AI Code Generation

1import (2func main() {3    ctx := cloud.NewContext("my-project-id", cloud.NewJSONKey("path/to/key.json"))4    logger := logging.NewClient(ctx, "my-log-name")5    logger.FlushHTTPTrails()6}7import (8func main() {9    ctx := cloud.NewContext("my-project-id", cloud.NewJSONKey("path/to/key.json"))10    logger := logging.NewClient(ctx, "my-log-name")11    logger.FlushHTTPTrails()12}13import java.util.*;14public class Main {15    public static void main(String[] args) {16        Scanner sc = new Scanner(System.in);17        int n = sc.nextInt();18        int m = sc.nextInt();19        int[] arr = new int[n];20        for (int i = 0; i < n; i++) {21            arr[i] = sc.nextInt();22        }23        for (int i = 0; i < m; i++) {24            int a = sc.nextInt();25            int b = sc.nextInt();26            int c = sc.nextInt();27            if (a == 1) {28                arr[b - 1] = c;29            } else {30                int sum = 0;31                for (int j = b - 1; j < c; j++) {32                    sum += arr[j];33                }34                System.out.println(sum);35            }36        }37    }38}39import java.util.*;40public class Main {41    public static void main(String[] args) {42        Scanner sc = new Scanner(System.in);43        int n = sc.nextInt();44        int m = sc.nextInt();

flushHTTPTrails

Using AI Code Generation

1import (2func main() {3	cloud.FlushHTTPTrails()4	fmt.Println("Hello, playground")5}6import (7func main() {8	cloud.FlushHTTPTrails()9	fmt.Println("Hello, playground")10}11import (12func main() {13	cloud.FlushHTTPTrails()14	fmt.Println("Hello, playground")15}16import (17func main() {18	cloud.FlushHTTPTrails()19	fmt.Println("Hello, playground")20}21import (22func main() {23	cloud.FlushHTTPTrails()24	fmt.Println("Hello, playground")25}26import (27func main() {28	cloud.FlushHTTPTrails()29	fmt.Println("Hello, playground")30}31import (32func main() {33	cloud.FlushHTTPTrails()34	fmt.Println("Hello, playground")35}36import (37func main() {38	cloud.FlushHTTPTrails()39	fmt.Println("Hello, playground")40}41import (42func main() {43	cloud.FlushHTTPTrails()44	fmt.Println("Hello, playground")45}46import (47func main() {48	cloud.FlushHTTPTrails()49	fmt.Println("Hello, playground

flushHTTPTrails

Using AI Code Generation

1import (2func main() {3	client := &http.Client{Transport: apmhttp.WrapRoundTripper(http.DefaultTransport)}4	if err != nil {5		fmt.Println(err)6	}7	apm.DefaultTracer.Flush(nil)8	time.Sleep(1 * time.Second)9}102019/03/28 18:09:54 elasticapm: sending 1 transaction(s)112019/03/28 18:09:54 elasticapm: sending 1 span(s)122019/03/28 18:09:54 elasticapm: sending 1 error(s)132019/03/28 18:09:54 elasticapm: sent 3 document(s) in 1 batches142019/03/28 18:09:54 elasticapm: flushing 1 transaction(s), 1 span(s), 1 error(s)152019/03/28 18:09:54 elasticapm: sent 3 document(s) in 1 batches162019/03/28 18:09:54 elasticapm: flushing 1 transaction(s), 1 span(s), 1 error(s)172019/03/28 18:09:54 elasticapm: sent 3 document(s) in 1 batches

flushHTTPTrails

Using AI Code Generation

1import (2func main() {3 cloud.flushHTTPTrails()4}5import (6func main() {7 cloud.flushHTTPTrails()8}

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.