Declare os **parâmetros de cabeçalho** que você precisa em um **modelo do Pydantic**, e então declare o parâmetro como `Header`:

{* ../../docs_src/header_param_models/tutorial001_an_py310.py hl[9:14,18] *}

O **FastAPI** irá **extrair** os dados de **cada campo** a partir dos **cabeçalhos** da requisição e te retornará o modelo do Pydantic que você definiu.

Shinsuke Sugaya <******@****.***> 1763013292 +0900

Shinsuke Sugaya <******@****.***> 1390632593 +0900

		"Count of offline nodes in the cluster")
	healthNodesOnlineCountMD = NewGaugeMD(healthNodesOnlineCount,
		"Count of online nodes in the cluster")
)

// loadClusterHealthNodeMetrics - `MetricsLoaderFn` for cluster health node
// metrics.
func loadClusterHealthNodeMetrics(ctx context.Context, m MetricValues,
	c *metricsCache,
) error {
	nodesUpDown, _ := c.nodesUpDown.Get()

	m.Set(healthNodesOfflineCount, float64(nodesUpDown.Offline))

		return key, ErrCustomerKeyMD5Mismatch
	}
	copy(key[:], clientKey)
	return key, nil
}

// UnsealObjectKey extracts and decrypts the sealed object key
// from the metadata using the SSE-C client key of the HTTP headers
// and returns the decrypted object key.
func (s3 ssec) UnsealObjectKey(h http.Header, metadata map[string]string, bucket, object string) (key ObjectKey, err error) {
	clientKey, err := s3.ParseHTTP(h)
	if err != nil {

		return keyID, kmsKey, sealedKey, Errorf("The internal sealed key for SSE-S3 is invalid")
	}
	if idPresent && kmsKeyPresent { // We are using a KMS -> parse the sealed KMS data key.
		kmsKey, err = base64.StdEncoding.DecodeString(b64KMSSealedKey)
		if err != nil {
			return keyID, kmsKey, sealedKey, Errorf("The internal sealed KMS data key for SSE-S3 is invalid")
		}
	}

	sealedKey.Algorithm = algorithm

			"X-Minio-Internal-Server-Side-Encryption-Iv":         "coVfGS3I/CTrqexX5vUN+PQPoP9aUFiPYYrSzqTWfBA=",
		},
		ExpectedErr: errMissingInternalSealAlgorithm,
	},
	{ // 3 - Invalid HTTP headers for valid metadata entries for bucket/object
		Headers: http.Header{

		return map[string]string{}
	}
	return map[string]string{
		"requestId":      w.Header().Get(xhttp.AmzRequestID),
		"nodeId":         w.Header().Get(xhttp.AmzRequestHostID),
		"content-length": w.Header().Get(xhttp.ContentLength),
		// Add more fields here.
	}
}

// Trims away `aws-chunked` from the content-encoding header if present.
// Streaming signature clients can have custom content-encoding such as

| xlHeaderVersion | msgp uint                   | header version identifier
| xlMetaVersion   | msgp uint                   | metadata version identifier
| versions        | msgp int                    | Number of versions following
| header_1        | msgp bin array              | Header of version 1
| metadata_1      | msgp bin array              | Metadata of version 1

	EnvDriveWorkers = "MINIO_HEAL_DRIVE_WORKERS"
)

var configMutex sync.RWMutex

// Config represents the heal settings.
type Config struct {
	// Bitrot will perform bitrot scan on local disk when checking objects.
	Bitrot string `json:"bitrotscan"`

	// maximum sleep duration between objects to slow down heal operation.
	Sleep   time.Duration `json:"sleep"`
	IOCount int           `json:"iocount"`