```JSON
{
    "name": "Foo",
    "description": "An optional description",
    "price": 45.2,
    "tax": 3.5
}
```

...`description`과 `tax`는 (기본 값이 `None`으로 되어 있어) 선택적이기 때문에, 이 JSON "`object`"는 다음과 같은 상황에서도 유효합니다:

```JSON
{
    "name": "Foo",
    "price": 45.2
}
```

## 매개변수로서 선언하기 { #declare-it-as-a-parameter }

Vous obtiendrez également l’autocomplétion pour le payload à envoyer :

<img src="/img/tutorial/generate-clients/image03.png">

/// tip | Astuce

Remarquez l’autocomplétion pour `name` et `price`, qui a été définie dans l’application FastAPI, dans le modèle `Item`.

///

Vous aurez des erreurs en ligne pour les données que vous envoyez :

<img src="/img/tutorial/generate-clients/image04.png">

                // No recovery possible, remove synchronously
                removeChannel(failedChannel);
                return;
            }
            // Recovery might be viable, attempt it with pre-created transport
            if (state.shouldRetry()) {
                scheduleRecoveryWithTransport(failedChannel, state, testTransport);
            } else {
                // Remove channel after max retries

    name: str
    description: str | None = None
    price: float = Field(gt=0)


app = FastAPI()


@app.post("/items/")
async def create_item(item: Item, project_id: Annotated[int, Query()]): ...
```

instead of this:

```python
# DO NOT DO THIS
class Item(BaseModel):
    name: str = ...
    description: str | None = None
    price: float = Field(..., gt=0)


app = FastAPI()

- Familiarity with [chroot](http://man7.org/linux/man-pages/man2/chroot.2.html)
- Chroot installed on your machine.

## 2. Install MinIO in Chroot

> **Note:** MinIO community edition is now distributed as source code only. Pre-compiled binaries are no longer provided for new releases.

Build MinIO from source and install it in the chroot directory:

```sh
# Build MinIO from source
go install github.com/minio/minio@latest

   *
   * <p>Note: This means that a test like the following will fail if {@code collection} is a {@code
   * Set}:
   *
   * <pre>
   * collection.add(existingElement);
   * expectAdded(existingElement);</pre>
   *
   * <p>In this case, {@code collection} was not modified as a result of the {@code add()} call, and

 * the execute method.<br>
 * The implementation should have a <code>Mojo</code> annotation with the name of the goal:
 * <pre>
 *   &#64;Mojo( name = "&lt;goal-name&gt;" )
 * </pre>
 * <p>
 * There are also a number of attributes which can be used to control how and when the
 * <code>Mojo</code> is executed:
 * </p>
 * <table border="1">

     * <p>
     * To check how "1.2.7" compares to "1.2-SNAPSHOT", for example, you can issue
     * <pre>java -jar ${maven.repo.local}/org/apache/maven/maven-artifact/${maven.version}/maven-artifact-${maven.version}.jar "1.2.7" "1.2-SNAPSHOT"</pre>
     * command to command line. Result of given command will be something like this:
     * <pre>
     * Display parameters as parsed by Maven (in canonical form) and comparison result:

    protected static final String SPNEGO_ALLOW_BASIC = "spnego.allow.basic";

    /** Configuration key for pre-authentication password. */
    protected static final String SPNEGO_PREAUTH_PASSWORD = "spnego.preauth.password";

    /** Configuration key for pre-authentication username. */
    protected static final String SPNEGO_PREAUTH_USERNAME = "spnego.preauth.username";

            return
          }

          // https://timothybasanov.com/2016/05/26/java-pre-master-secret.html
          // https://security.stackexchange.com/questions/35639/decrypting-tls-in-wireshark-when-using-dhe-rsa-ciphersuites
          // https://stackoverflow.com/questions/36240279/how-do-i-extract-the-pre-master-secret-using-an-openssl-based-client

          // TLSv1.2 Events