if err = disk.RenameFile(context.TODO(), minioMetaBucket, tmpFormat, minioMetaBucket, formatConfigFile); err != nil {
		return err
	}

	disk.SetDiskID(format.Erasure.This)
	if healID != "" {
		ctx := context.Background()
		ht := initHealingTracker(disk, healID)
		return ht.save(ctx)
	}
	return nil
}

// loadFormatErasure - loads format.json from disk.

#
0000..002C    ; disallowed_STD3_valid                  # 1.1  <control-0000>..COMMA
002D..002E    ; valid                                  # 1.1  HYPHEN-MINUS..FULL STOP
002F          ; disallowed_STD3_valid                  # 1.1  SOLIDUS
0030..0039    ; valid                                  # 1.1  DIGIT ZERO..DIGIT NINE
003A..0040    ; disallowed_STD3_valid                  # 1.1  COLON..COMMERCIAL AT

			valid: false,
		},
		{
			name:  "port name missing service",
			in:    portNameMissingSvc,
			valid: false,
		},
		{
			name:  "version label missing deployment",
			in:    versionLabelMissingDeployment,
			valid: true,
		},
		{
			name:  "valid port naming service",
			in:    validPortNamingSvc,
			valid: true,
		},
		{
			name:  "valid port naming with suffix service",

				z.HealedBuckets[za0002], err = dc.ReadString()
				if err != nil {
					err = msgp.WrapError(err, "HealedBuckets", za0002)
					return
				}
			}
		case "HealID":
			z.HealID, err = dc.ReadString()
			if err != nil {
				err = msgp.WrapError(err, "HealID")
				return
			}
		case "ItemsSkipped":
			z.ItemsSkipped, err = dc.ReadUint64()
			if err != nil {
				err = msgp.WrapError(err, "ItemsSkipped")

func newHealingTracker() *healingTracker {
	return &healingTracker{
		mu: &sync.RWMutex{},
	}
}

func initHealingTracker(disk StorageAPI, healID string) *healingTracker {
	h := newHealingTracker()
	diskID, _ := disk.GetDiskID()
	h.disk = disk
	h.ID = diskID
	h.HealID = healID
	h.Path = disk.String()
	h.Endpoint = disk.Endpoint().String()
	h.Started = time.Now().UTC()

				strings.Join([]string{
					// generating a valid credential.
					generateCredentialStr(
						"access key",
						sampleTimeStr,
						"us-west-1",
						"s3",
						"aws4_request"),
					// valid SignedHeader.
					"SignedHeaders=host;x-amz-content-sha256;x-amz-date",
					// valid Signature field.
					// a valid signature is of form "Signature="
					"Signature=abcd",
				}, ","),

					Source:      "source",
					Destination: "destination",
					SecretMeta: SecretMeta{
						Valid:        true,
						SerialNumber: "serial_number",
						NotAfter:     "expires",
						NotBefore:    "valid",
						Type:         "type",
					},
				},
			},
			expected: append(
				[]string{"olinger", "serial_number", "expires", "valid", "type"},
				secretItemColumns...),
			unexpected: []string{"source", "destination", "certdata"},

    @Override
    public ListenableFuture<String> apply(Integer input) throws Exception {
      switch (input) {
        case VALID_INPUT_DATA:
          outputFuture.set(RESULT_DATA);
          break;
        case SLOW_OUTPUT_VALID_INPUT_DATA:
          break; // do nothing to the result
        case SLOW_FUNC_VALID_INPUT_DATA:
          funcIsWaitingLatch.countDown();
          awaitUninterruptibly(funcCompletionLatch);
          break;

    @Override
    public ListenableFuture<String> apply(Integer input) throws Exception {
      switch (input) {
        case VALID_INPUT_DATA:
          outputFuture.set(RESULT_DATA);
          break;
        case SLOW_OUTPUT_VALID_INPUT_DATA:
          break; // do nothing to the result
        case SLOW_FUNC_VALID_INPUT_DATA:
          funcIsWaitingLatch.countDown();
          awaitUninterruptibly(funcCompletionLatch);
          break;

class Item(BaseModel):
    name: str = Field(alias="aliased_name")
    price: Optional[float] = None
    owner_ids: Optional[List[int]] = None


@app.get("/items/valid", response_model=Item)
def get_valid():
    return Item(aliased_name="valid", price=1.0)


@app.get("/items/coerce", response_model=Item)
def get_coerce():
    return Item(aliased_name="coerce", price="1.0")