subBucket := uint(duration>>(bucketBit-1-timeHistSubBucketBits)) % timeHistNumSubBuckets
	h.counts[bucket*timeHistNumSubBuckets+subBucket].Add(1)
}

// write dumps the histogram to the passed metricValue as a float64 histogram.
func (h *timeHistogram) write(out *metricValue) {
	hist := out.float64HistOrInit(timeHistBuckets)
	// The bottom-most bucket, containing negative values, is tracked

O resultado de chamar a função é algo que pode ser codificado com o padrão do Python <a href="https://docs.python.org/3/library/json.html#json.dumps" class="external-link" target="_blank">`json.dumps()`</a>.

    suite_args+=("--ginkgo.${arg#--}")
  done
fi

# Generate full dumps of the test result and progress in <report-dir>/ginkgo/,
# using the Ginkgo-specific JSON format and JUnit XML. Ignored if --report-dir
# is not used.
suite_args+=(--report-complete-ginkgo --report-complete-junit)

# The following invocation is fairly complex. Let's dump it to simplify
# determining what the final options are. Enabled by default in CI

apiVersion: release-notes/v2
kind: feature
area: istioctl
releaseNotes:
- |

    spec:
      imagePullSecrets:
      - name: myregistrykey
      containers:
      - name: istio-proxy
        image: auto
        imagePullPolicy: Always
        securityContext: # to allow core dumps
          readOnlyRootFilesystem: false
      - name: app
        image: testing.hub/app:latest
        imagePullPolicy: Always
        args:
          - --metrics=15014
          - --cluster=cluster-0

log dumping mechanism first.

Currently, `log-dump.sh` file is added to every newly released `kubekins-e2e` image.
In order to leverage that script, add `USE_TEST_INFRA_LOG_DUMPING` environment variable
to your test job and set its value to `true`.

## Migration steps

For the time being, only GCE and GKE providers are supported by the log-dump mechanism.

func testInlineStack(t *testing.T, file, function string, wantStacks [][]int) {
	// this is an inlining reporting test, not an optimization test.  -N makes it less fragile
	dumpBytes := compileAndDump(t, file, function, "-N")
	dump := bufio.NewScanner(bytes.NewReader(dumpBytes))
	dumpLineNum := 0
	var gotStmts []int
	var gotStacks [][]int
	for dump.Scan() {
		line := dump.Text()

	if c.configDump == nil {
		return nil, fmt.Errorf("config writer has not been primed")
	}

	dump, err := c.configDump.GetEcdsConfigDump()
	if err != nil {
		return nil, err
	}

	ecds := make([]*core.TypedExtensionConfig, 0, len(dump.EcdsFilters))
	for _, config := range dump.GetEcdsFilters() {
		c := &core.TypedExtensionConfig{}
		err := config.GetEcdsFilter().UnmarshalTo(c)
		if err != nil {

	if c.configDump == nil {
		return nil, fmt.Errorf("config writer has not been primed")
	}
	dump, err := c.configDump.GetEndpointsConfigDump()
	if err != nil {
		return nil, err
	}
	if dump == nil {
		return nil, nil
	}
	endpoints := make([]*endpoint.ClusterLoadAssignment, 0, len(dump.DynamicEndpointConfigs))
	for _, e := range dump.GetDynamicEndpointConfigs() {
		cla, epCount := retrieveEndpoint(e.EndpointConfig, filter)

    {!> ../../../docs_src/encoder/tutorial001.py!}
    ```

在这个例子中，它将Pydantic模型转换为`dict`，并将`datetime`转换为`str`。

调用它的结果后就可以使用Python标准编码中的<a href="https://docs.python.org/3/library/json.html#json.dumps" class="external-link" target="_blank">`json.dumps()`</a>。

这个操作不会返回一个包含JSON格式（作为字符串）数据的庞大的`str`。它将返回一个Python标准数据结构（例如`dict`），其值和子值都与JSON兼容。

!!! note