```JSON hl_lines="5-7"
{
    "openapi": "3.1.0",
    // Здесь ещё что-то
    "servers": [
        {
            "url": "/api/v1"
        },
        {
            "url": "https://stag.example.com",
            "description": "Staging environment"
        },
        {
            "url": "https://prod.example.com",
            "description": "Production environment"
        }
    ],

func TestCreateEndpoints(t *testing.T) {
	tempGlobalMinioPort := globalMinioPort
	defer func() {
		globalMinioPort = tempGlobalMinioPort
	}()
	globalMinioPort = "9000"

	// Filter ipList by IPs those do not start with '127.'.
	nonLoopBackIPs := localIP4.FuncMatch(func(ip string, matchString string) bool {
		return !net.ParseIP(ip).IsLoopback()
	}, "")
	if len(nonLoopBackIPs) == 0 {

	rawDiskPaths []string
}

// UnstartedTestServer - Configures a temp FS/Erasure backend,
// initializes the endpoints and configures the test server.
// The server should be started using the Start() method.
func UnstartedTestServer(t TestErrHandler, instanceType string) TestServer {
	ctx, cancel := context.WithCancel(context.Background())
	// create an instance of TestServer.
	testServer := TestServer{cancel: cancel}

```JSON hl_lines="5-7"
{
    "openapi": "3.1.0",
    // Hier mehr Einstellungen
    "servers": [
        {
            "url": "/api/v1"
        },
        {
            "url": "https://stag.example.com",
            "description": "Staging environment"
        },
        {
            "url": "https://prod.example.com",
            "description": "Production environment"
        }
    ],

}

func writeAllMetadataWithRevert(ctx context.Context, disks []StorageAPI, origbucket, bucket, prefix string, files []FileInfo, quorum int, revert bool) ([]StorageAPI, error) {
	g := errgroup.WithNErrs(len(disks))

	// Start writing `xl.meta` to all disks in parallel.
	for index := range disks {
		g.Go(func() error {
			if disks[index] == nil {
				return errDiskNotFound
			}
			// Pick one FileInfo for a disk at index.

pkg os, func OpenFile(string, int, FileMode) (*File, error)
pkg os, func SameFile(FileInfo, FileInfo) bool
pkg os, func Stat(string) (FileInfo, error)
pkg os, method (*File) Chmod(FileMode) error
pkg os, method (*File) Readdir(int) ([]FileInfo, error)
pkg os, method (*File) Stat() (FileInfo, error)
pkg os, method (*PathError) Error() string
pkg os, method (*PathError) Timeout() bool
pkg os, method (*PathError) Unwrap() error

pkg archive/tar, const TypeGNUSparse = 83
pkg archive/tar, const TypeGNUSparse ideal-char
pkg archive/tar, type Header struct, Xattrs map[string]string
pkg compress/gzip, method (*Reader) Reset(io.Reader) error
pkg crypto/tls, const CurveP256 = 23
pkg crypto/tls, const CurveP256 CurveID
pkg crypto/tls, const CurveP384 = 24
pkg crypto/tls, const CurveP384 CurveID
pkg crypto/tls, const CurveP521 = 25
pkg crypto/tls, const CurveP521 CurveID

func (hr HealthResult) String() string {
	var str strings.Builder
	for i, es := range hr.ESHealth {
		str.WriteString("(Pool: ")
		str.WriteString(strconv.Itoa(es.PoolID))
		str.WriteString(" Set: ")
		str.WriteString(strconv.Itoa(es.SetID))
		str.WriteString(" Healthy: ")
		str.WriteString(strconv.FormatBool(es.Healthy))
		if i == 0 {
			str.WriteString(")")
		} else {
			str.WriteString(") | ")
		}
	}

        private final int value;

        public static final IntItem ZERO = new IntItem();

        private IntItem() {
            this.value = 0;
        }

        IntItem(String str) {
            this.value = Integer.parseInt(str);
        }

        @Override
        public int getType() {
            return INT_ITEM;
        }

        @Override
        public boolean isNull() {

```Python hl_lines="1  4"
{!../../docs_src/python_types/tutorial009_py39.py!}
```

O uso de `Optional[str]` em vez de apenas `str` permitirá que o editor o ajude a detectar erros, onde você pode estar assumindo que um valor é sempre um `str`, quando na verdade também pode ser `None`.

`Optional[Something]` é na verdade um atalho para `Union[Something, None]`, eles são equivalentes.