Donc :

```Python
q: Union[str, None] = Query(default=None)
```

... rend le paramètre optionnel, et est donc équivalent à :

```Python
q: Union[str, None] = None
```

Mais déclare explicitement `q` comme étant un paramètre de requête.

/// info

Gardez à l'esprit que la partie la plus importante pour rendre un paramètre optionnel est :

```Python
= None
```

ou :

```Python
= Query(None)
```

	OrigVolume string             `msg:"ov"`
	FilePath   string             `msg:"fp"`
	UpdateOpts UpdateMetadataOpts `msg:"uo"`
	FI         FileInfo           `msg:"fi"`
}

// UpdateMetadataOpts provides an optional input to indicate if xl.meta updates need to be fully synced to disk.
type UpdateMetadataOpts struct {
	NoPersistence bool `msg:"np"`
}

// CheckPartsHandlerParams are parameters for CheckPartsHandler

     */
    public DeleteForm() {
        // Default constructor with explicit documentation
    }

    /**
     * The search query used to find the document.
     * Optional field with maximum length of 1000 characters.
     */
    @Size(max = 1000)
    public String q;

    /**
     * The document ID of the document to delete.
     * Required field for identifying the specific document.

		},
		config.HelpKV{
			Key:         RoleID,
			Description: "unique ID to generate the ARN" + defaultHelpPostfix(RoleID),
			Optional:    true,
			Type:        "string",
		},
		config.HelpKV{
			Key:         config.Comment,
			Description: config.DefaultComment,
			Optional:    true,
			Type:        "sentence",
		},
	}
)

// Allows only Base64 URL encoding characters.

The same assembler is used for all target operating systems and architectures.
The GOOS and GOARCH environment variables set the desired target.

Flags:

	-D name[=value]
		Predefine symbol name with an optional simple value.
		Can be repeated to define multiple symbols.
	-I dir1 -I dir2
		Search for #include files in dir1, dir2, etc,
		after consulting $GOROOT/pkg/$GOOS_$GOARCH.
	-S
		Print assembly and machine code.
	-V

        assertNull(transport.getServerEncryptionKey());
    }

    @Test
    @DisplayName("Signing enforced/optional adhere to flags and negotiation")
    void signingModes() throws Exception {
        // Enforced via constructor flag -> optional false, enforced true regardless of negotiation
        SmbTransportImpl enforced = new SmbTransportImpl(ctx, address, 445, null, 0, true);

from typing import Optional

import pytest
from fastapi import APIRouter, Depends, FastAPI
from fastapi.testclient import TestClient

app = FastAPI()

router = APIRouter()


async def common_parameters(q: str, skip: int = 0, limit: int = 100):
    return {"q": q, "skip": skip, "limit": limit}


@app.get("/main-depends/")
async def main_depends(commons: dict = Depends(common_parameters)):

 * </p>
 * <ul>
 *   <li>{@code GCS_PROJECT_ID}: The Google Cloud project ID.</li>
 *   <li>{@code GCS_ENDPOINT}: Custom endpoint URL (optional, for testing with fake-gcs-server).</li>
 *   <li>{@code GCS_CREDENTIALS_FILE}: Path to service account JSON file (optional).</li>
 * </ul>
 *
 * <p>
 * The {@link GcsURLConnection} class handles the actual connection and data retrieval from the storage service.
 * </p>
 */

     *
     * @param projectId the GCS project ID
     * @param bucket the bucket name
     * @param endpoint the custom endpoint URL (optional, for fake-gcs-server etc.)
     * @param credentialsPath the path to the credentials JSON file (optional)
     */
    public GcsStorageClient(final String projectId, final String bucket, final String endpoint, final String credentialsPath) {
        this.bucket = bucket;

      <artifactId>commons-cli</artifactId>
    </dependency>
    <dependency>
      <groupId>ch.qos.logback</groupId>
      <artifactId>logback-classic</artifactId>
      <optional>true</optional>
    </dependency>

    <dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter-api</artifactId>
      <scope>test</scope>
    </dependency>
    <dependency>