//
// -- if input is RRS but RRS is not configured/initialized '-1' parity
//
//	for RRS is assumed, the caller is expected to choose the right parity
//	at that point.
//
// -- if input is STANDARD but STANDARD is not configured/initialized '-1' parity
//
//	is returned, the caller is expected to choose the right parity
//	at that point.
func (sCfg *Config) GetParityForSC(sc string) (parity int) {

// An Update function must be set to provide an updated value when needed.
type Cache[T any] struct {
	// updateFn must return an updated value.
	// If an error is returned the cached value is not set.
	// Only one caller will call this function at any time, others will be blocking.
	// The returned value can no longer be modified once returned.
	// Should be set before calling Get().
	updateFn func() (T, error)

	// ttl for a cached value.

	return dsc
}

// replicate deletes to the designated replication target if replication configuration
// has delete marker replication or delete replication (MinIO extension to allow deletes where version id
// is specified) enabled.
// Similar to bucket replication for PUT operation, soft delete (a.k.a setting delete marker) and
// permanent deletes (by specifying a version ID in the delete operation) have three states "Pending", "Complete"

}

func (az *warmBackendAzure) InUse(ctx context.Context) (bool, error) {
	containerURL := az.serviceURL.NewContainerURL(az.Bucket)
	resp, err := containerURL.ListBlobsHierarchySegment(ctx, azblob.Marker{}, "/", azblob.ListBlobsSegmentOptions{
		Prefix:     az.Prefix,
		MaxResults: int32(1),
	})
	if err != nil {
		return false, azureToObjectError(err, az.Bucket, az.Prefix)
	}

//
// NewReader may try merge the given size, MD5 and SHA256 values
// into src - if src is a Reader - to avoid computing the same
// checksums multiple times.
// NewReader enforces S3 compatibility strictly by ensuring caller
// does not send more content than specified size.
func NewReader(ctx context.Context, src io.Reader, size int64, md5Hex, sha256Hex string, actualSize int64) (*Reader, error) {

		return err
	}

	retryAttempts := ri.RetryAttempts
	ctx, cancel := context.WithCancel(ctx)

	results := make(chan ObjectInfo, 100)
	if err := api.Walk(ctx, r.Bucket, r.Prefix, results, WalkOptions{
		Marker: lastObject,
		Filter: selectObj,
	}); err != nil {
		cancel()
		// Do not need to retry if we can't list objects on source.
		return err
	}

	for result := range results {
		result := result

| `minio_cluster_usage_total_bytes`            | Total cluster usage in bytes                                   |
| `minio_cluster_usage_version_total`          | Total number of versions (includes delete marker) in a cluster |
| `minio_cluster_usage_deletemarker_total`     | Total number of delete markers in a cluster                    |

	queryValue := url.Values{}
	queryValue.Set("uploads", "")
	queryValue.Set("prefix", prefix)
	queryValue.Set("delimiter", delimiter)
	queryValue.Set("key-marker", keyMarker)
	queryValue.Set("upload-id-marker", uploadIDMarker)
	queryValue.Set("max-uploads", maxUploads)
	return makeTestTargetURL(endPoint, bucketName, "", queryValue)
}

// return URL for a listing parts on a given upload id.

	select {
	case res := <-task.respCh:
		if !h.reportProgress {
			if errors.Is(res.err, errSkipFile) { // this is only sent usually by nopHeal
				return nil
			}

			// Report caller of any failure
			return res.err
		}
		res.result.Type = healType
		if res.err != nil {
			res.result.Detail = res.err.Error()
		}
		return h.pushHealResultItem(res.result)
	case <-h.ctx.Done():

		// If separator is not found or is last entry, ok.
		return idx == -1 || idx == len(ext)-len(separator)
	}
	return false
}

// isLatestDeletemarker returns whether the latest version is a delete marker.
// If metadata is NOT versioned false will always be returned.
// If v2 and UNABLE to load metadata true will be returned.
func (e *metaCacheEntry) isLatestDeletemarker() bool {
	if e.cached != nil {