You probably won't need to use it directly in your code.

But in case you needed it for an advanced scenario, you can add custom headers:

```Python hl_lines="14"
{!../../docs_src/handling_errors/tutorial002.py!}
```

## Install custom exception handlers

### SIG OpenStack

SIG-OpenStack continued to build out testing, with eleven acceptance tests covering a wide-range of scenarios and use-cases. During the 1.11 cycle our reporting back to test-grid has qualified the OpenStack cloud provider as a gating job for the Kubernetes release.

### Suporte do OpenAPI

O OpenAPI não suporta uma maneira de declarar um *parâmetro de rota* que contenha uma *rota* dentro, dado que isso poderia levar a cenários que são difíceis de testar e definir.

No entanto, você pode fazer isso no **FastAPI**, usando uma das ferramentas internas do Starlette.

## Before Upgrading

Consider the following changes, limitations, and guidelines before you upgrade:

### **API Machinery**

/// info

Die wunderschönen Illustrationen stammen von <a href="https://www.instagram.com/ketrinadrawsalot" class="external-link" target="_blank">Ketrina Thompson</a>. 🎨

///

---

In diesem Szenario der parallelen Hamburger sind Sie ein Computersystem / Programm 🤖 mit zwei Prozessoren (Sie und Ihr Schwarm), die beide warten 🕙 und ihre Aufmerksamkeit darauf verwenden, „lange Zeit vor der Theke zu warten“ 🕙.

                    14, "File System Watching",
                    listOf("santaTrackerAndroidBuild", "largeJavaMultiProject").map {
                        PerformanceScenario(
                            Scenario(
                                "org.gradle.performance.regression.corefeature.FileSystemWatchingPerformanceTest",
                                "assemble for non-abi change with file system watching and configuration caching"

        if (!process.isEmpty()) {
            if (!restrictions.isEmpty()) {
                throw new InvalidVersionSpecificationException(
                        "Only fully-qualified sets allowed in multiple set scenario: " + spec);
            } else {
                version = new DefaultArtifactVersion(process);
                restrictions.add(Restriction.EVERYTHING);
            }
        }

	// Initialize heal result info
	return madmin.HealResultItem{
		Type:     madmin.HealItemBucket,
		Bucket:   bucket,
		SetCount: -1, // explicitly set an invalid value -1, for bucket heal scenario
	}, toStorageErr(err)
}

// GetBucketInfo returns bucket stat info from a peer
func (client *remotePeerS3Client) GetBucketInfo(ctx context.Context, bucket string, opts BucketOptions) (BucketInfo, error) {

    // scenario 1: condition succeeds
    server.enqueue(
      response.newBuilder()
        .body("A")
        .status("HTTP/1.1 200 A-OK")
        .build(),
    )
    server.enqueue(
      MockResponse.Builder()
        .code(HttpURLConnection.HTTP_NOT_MODIFIED)
        .build(),
    )

    // scenario 2: condition fails
    server.enqueue(

Sie müssen das wahrscheinlich nicht direkt in ihrem Code verwenden.

Aber falls es in einem fortgeschrittenen Szenario notwendig ist, können Sie benutzerdefinierte Header wie folgt hinzufügen:

```Python hl_lines="14"
{!../../docs_src/handling_errors/tutorial002.py!}
```

## Benutzerdefinierte Exceptionhandler definieren