// Object for test case 3 - No StorageClass defined, MetaData in PutObject requesting Standard Storage Class
	object3 := "object3"
	metadata3 := make(map[string]string)
	metadata3["x-amz-storage-class"] = storageclass.STANDARD
	_, err = obj.PutObject(ctx, bucket, object3, mustGetPutObjReader(t, bytes.NewReader(data), int64(len(data)), "", ""), ObjectOptions{UserDefined: metadata3})
	if err != nil {
		t.Fatalf("Failed to putObject %v", err)

        final Metadata metadata = new Metadata();
        if (StringUtil.isNotEmpty(resourceName)) {
            metadata.set(ExtractData.RESOURCE_NAME_KEY, resourceName);
        }
        if (StringUtil.isNotBlank(contentType)) {
            metadata.set(ExtractData.CONTENT_TYPE, contentType);
        }
        if (StringUtil.isNotBlank(contentEncoding)) {

  xml.namespace="http://maven.apache.org/METADATA/${version}"
  xml.schemaLocation="https://maven.apache.org/xsd/repository-metadata-${version}.xsd">
  <id>repository-metadata</id>
  <name>Metadata</name>
  <description><![CDATA[
    <p>Per-directory repository metadata <code>repository-metadata.xml</code>.</p>

		return false
	}
	return true
}

// MetadataEquals returns true if FileInfos Metadata maps are equal, false otherwise.
func (fi FileInfo) MetadataEquals(ofi FileInfo) bool {
	if len(fi.Metadata) != len(ofi.Metadata) {
		return false
	}
	for k, v := range fi.Metadata {
		if ov, ok := ofi.Metadata[k]; !ok || ov != v {
			return false
		}
	}
	return true
}

	if b.Created.IsZero() {
		b.Created = UTCNow()
	}
	if !createdAt.IsZero() {
		b.Created = createdAt.UTC()
	}
}

// Load - loads the metadata of bucket by name from ObjectLayer api.
// If an error is returned the returned metadata will be default initialized.
func readBucketMetadata(ctx context.Context, api ObjectLayer, name string) (BucketMetadata, error) {
	if name == "" {

	}

	return loadBucketMetadata(ctx, objAPI, bucket)
}

var errBucketMetadataNotInitialized = errors.New("bucket metadata not initialized yet")

// GetConfig returns a specific configuration from the bucket metadata.
// The returned object may not be modified.
// reloaded will be true if metadata refreshed from disk

	start := int(keyCrc % uint32(cardinality))
	for i := 1; i <= cardinality; i++ {
		nums[i-1] = 1 + ((start + i) % cardinality)
	}
	return nums
}

// Reads all `xl.meta` metadata as a FileInfo slice.
// Returns error slice indicating the failed metadata reads.
func readAllFileInfo(ctx context.Context, disks []StorageAPI, origbucket string, bucket, object, versionID string, readData, healing bool) ([]FileInfo, []error) {

///

## Usar `Annotated` en el tipo del parámetro `q` { #use-annotated-in-the-type-for-the-q-parameter }

¿Recuerdas que te dije antes que `Annotated` puede usarse para agregar metadatos a tus parámetros en la [Introducción a Tipos de Python](../python-types.md#type-hints-with-metadata-annotations){.internal-link target=_blank}?

Ahora es el momento de usarlo con FastAPI. 🚀

Teníamos esta anotación de tipo:

//// tab | Python 3.10+

```Python

func parseBucketTargetConfig(bucket string, cdata, cmetadata []byte) (*madmin.BucketTargets, error) {
	var (
		data []byte
		err  error
		t    madmin.BucketTargets
		meta map[string]string
	)
	if len(cdata) == 0 {
		return nil, nil
	}
	data = cdata
	json := jsoniter.ConfigCompatibleWithStandardLibrary
	if len(cmetadata) != 0 {
		if err := json.Unmarshal(cmetadata, &meta); err != nil {
			return nil, err
		}

Erinnern Sie sich, dass ich Ihnen zuvor in [Python-Typen-Intro](../python-types.md#type-hints-with-metadata-annotations){.internal-link target=_blank} gesagt habe, dass `Annotated` verwendet werden kann, um Metadaten zu Ihren Parametern hinzuzufügen?

Jetzt ist es soweit, dies mit FastAPI zu verwenden. 🚀

Wir hatten diese Typannotation:

//// tab | Python 3.10+

```Python