c := time.After(after)
	cc := make(chan struct{})
	go func() {
		select {
		case <-cc:
			return
		case <-c:
			buf := make([]byte, 1<<20)
			stacklen := runtime.Stack(buf, true)
			fmt.Printf("=== Timeout, assuming deadlock ===\n*** goroutine dump...\n%s\n*** end\n", string(buf[:stacklen]))
			os.Exit(2)
		}
	}()
	return func() {
		close(cc)
	}

				},
				{
					PartNumber: 2,
					Algorithm:  HighwayHash256S,
					Hash:       nil,
				},
			},
		},
	}
	for _, size := range []int{1, 10, 1000, 100_000} {
		b.Run(fmt.Sprint(size, "-versions"), func(b *testing.B) {
			var xl xlMetaV2
			ids := make([]string, size)
			for i := 0; i < size; i++ {
				fi.VersionID = mustGetUUID()
				fi.DataDir = mustGetUUID()
				ids[i] = fi.VersionID

		{"192.168.1.210:9000", Endpoint{}, -1, fmt.Errorf("invalid URL endpoint format: missing scheme http or https")},
	}

	for i, test := range testCases {
		t.Run(fmt.Sprint("case-", i), func(t *testing.T) {
			endpoint, err := NewEndpoint(test.arg)
			if err == nil {
				err = endpoint.UpdateIsLocal()
			}

			switch {
			case test.expectedErr == nil:
				if err != nil {

```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

Под капотом" open("./somefile.txt") создаёт объект называемый "контекстным менеджером".

Когда блок `with` завершается, он обязательно закрывает файл, даже если были исключения.

// explicitly by running a TPUReplicatedOutput operation on the parallel device.
//
// TODO(allenl): There are some use-cases that are only supported by copying to
// host at the moment (e.g. debug print on a tensor, .numpy(), etc.). We either
// need to return something here or address these use-cases one by one.
TFE_TensorHandle* CopyTensorFromParallelDevice(TFE_Context* context,

-flexbox!important;display:inline-flex!important}}@media print{.d-print-none{display:none!important}.d-print-inline{display:inline!important}.d-print-inline-block{display:inline-block!important}.d-print-block{display:block!important}.d-print-table{display:table!important}.d-print-table-row{display:table-row!important}.d-print-table-cell{display:table-cell!important}.d-print-flex{display:-ms-flexbox!important;display:flex!important}.d-print-inline-flex{display:-ms-inline-flexbox!important;display...

		return fmt.Errorf("unable to list IAM data: %w", err)
	}
	if took := time.Since(listStartTime); took > maxIAMLoadOpTime {
		var s strings.Builder
		for k, v := range listedConfigItems {
			s.WriteString(fmt.Sprintf("    %s: %d items\n", k, len(v)))
		}
		logger.Info("listAllIAMConfigItems took %.2fs with contents:\n%s", took.Seconds(), s.String())
	}

	// Loads things in the same order as `LoadIAMCache()`

		tmpMetaDir := path.Join(disk, minioMetaTmpBucket)
		files, err := os.ReadDir(tmpMetaDir)
		if err != nil {
			// It's OK to have non-existing tmpMetaDir.
			if osIsNotExist(err) {
				continue
			}

			// Print the error
			t.Errorf("%s", err)
		}

		var found bool
		for _, fi := range files {
			if fi.Name() == ".trash" {
				continue
			}
			found = true
			break
		}

		if found {

		if deploymentID != formats[i].ID {
			return nil, fmt.Errorf("all pools must have same deployment ID - expected %s, got %s for pool(%s)", deploymentID, formats[i].ID, humanize.Ordinal(i+1))
		}

		bootstrapTrace(fmt.Sprintf("newErasureSets: initializing %s pool", humanize.Ordinal(i+1)), func() {
			z.serverPools[i], err = newErasureSets(ctx, ep, storageDisks[i], formats[i], commonParityDrives, i)
		})
		if err != nil {
			return nil, err

pkg flag, var ErrHelp error
pkg flag, var Usage func()
pkg fmt, func Errorf(string, ...interface{}) error
pkg fmt, func Fprint(io.Writer, ...interface{}) (int, error)
pkg fmt, func Fprintf(io.Writer, string, ...interface{}) (int, error)
pkg fmt, func Fprintln(io.Writer, ...interface{}) (int, error)
pkg fmt, func Fscan(io.Reader, ...interface{}) (int, error)