| xlMetaV2       | msgp bin array | Bin array with serialized metadata
| crc            | msgp uint      | Lower 32 bits of 64 bit xxhash of previous array contents (v1.2+ only)
| inline data    | binary         | Inline data if any, see Inline Data section for encoding.  
| [EOF] | |

## v1.0-v1.2 Versions

`xl.meta` carries three types of object entries which designate the type of version object stored.

- ObjectType (default)

        LeaseV2CreateContextResponse v2 = getLeaseV2Context();
        if (v2 != null) {
            return v2.getLeaseKey();
        }
        LeaseV1CreateContextResponse v1 = getLeaseV1Context();
        if (v1 != null) {
            return v1.getLeaseKey();
        }
        return null;
    }

    /**
     * Get the lease state from the response
     * @return the lease state or 0 if no lease was granted

    private int leaseState;
    private int leaseFlags;

    /**
     * Create a new lease V1 context request
     */
    public LeaseV1CreateContextRequest() {
        this.leaseKey = new Smb2LeaseKey();
        this.leaseState = 0;
        this.leaseFlags = 0;
    }

    /**
     * Create a new lease V1 context request with specified parameters
     *
     * @param leaseKey the lease key

# remove zip files from the list when they are removed from
# this directory. To update this file:
#
#	go test cmd/go/internal/fips140 -update
#
v1.0.0-c2097c7c.zip daf3614e0406f67ae6323c902db3f953a1effb199142362a039e7526dfb9368b

from fastapi.testclient import TestClient

from docs_src.behind_a_proxy.tutorial001_py39 import app

client = TestClient(app, root_path="/api/v1")


def test_main():
    response = client.get("/app")
    assert response.status_code == 200
    assert response.json() == {"message": "Hello World", "root_path": "/api/v1"}


def test_openapi():
    response = client.get("/openapi.json")
    assert response.status_code == 200

## Проверьте { #check-it }

Теперь каждый HTTP‑запрос по пути `/v1/` будет обрабатываться приложением Flask.

А всё остальное будет обрабатываться **FastAPI**.

Если вы запустите это и перейдёте по <a href="http://localhost:8000/v1/" class="external-link" target="_blank">http://localhost:8000/v1/</a>, вы увидите HTTP‑ответ от Flask:

```txt
Hello, World from Flask!
```

// license that can be found in the LICENSE file.

package p4

type Pair[T1 interface{ M() }, T2 ~int] struct {
	f1 T1
	f2 T2
}

func NewPair[T1 interface{ M() }, T2 ~int](v1 T1, v2 T2) Pair[T1, T2] {
	return Pair[T1, T2]{f1: v1, f2: v2}
}

func (p Pair[X1, _]) First() X1 {
	return p.f1
}

func (p Pair[_, X2]) Second() X2 {
	return p.f2
}

// Deprecated: Use something else.

## Confira { #check-it }

Agora, todas as requisições sob o path `/v1/` serão manipuladas pela aplicação Flask.

E o resto será manipulado pelo **FastAPI**.

Se você rodar a aplicação e ir até <a href="http://localhost:8000/v1/" class="external-link" target="_blank">http://localhost:8000/v1/</a>, você verá o retorno do Flask:

```txt
Hello, World from Flask!
```

Jetzt wird jeder <abbr title="Request – Anfrage: Daten, die der Client zum Server sendet">Request</abbr> unter dem Pfad `/v1/` von der Flask-Anwendung verarbeitet.

Und der Rest wird von **FastAPI** gehandhabt.

            bb.putShort((short) 0); // tflags high bytes

            // First Referral v1
            bb.putShort((short) 1); // version
            bb.putShort((short) 20); // size
            bb.putShort((short) 2); // serverType
            bb.putShort((short) 3); // rflags
            // v1 node string follows
            bb.put("\\server1\0".getBytes(StandardCharsets.UTF_16LE));