*/
    public byte[] deriveKey(byte[] baseKey, String label, byte[] context, int length) throws GeneralSecurityException {
        checkNotClosed();

        // Simple KDF implementation (should be replaced with proper KDF like HKDF)
        // This is a placeholder - real implementation should use proper KDF
        byte[] derived = new byte[length];

        // Combine inputs

	"github.com/pkg/errors"
	"github.com/prometheus/client_golang/prometheus"
)

type collectorPath string

// metricPrefix converts a collector path to a metric name prefix. The path is
// converted to snake-case (by replaced '/' and '-' with '_') and prefixed with
// `minio_`.
func (cp collectorPath) metricPrefix() string {
	s := strings.TrimPrefix(string(cp), SlashSeparator)
	s = strings.ReplaceAll(s, SlashSeparator, "_")

	// InclFreeVersions indicates that free versions need to be included
	// when looking up a version by fi.VersionID
	InclFreeVersions bool
	// SkipFreeVersion skips adding a free version when a tiered version is
	// being 'replaced'
	// Note: Used only when a tiered object is being expired.
	SkipFreeVersion bool

	MetadataChg           bool                  // is true if it is a metadata update operation.

   * between elements will be made, but the order in which those pairs of elements are passed to the
   * consumer is <i>not</i> defined.
   *
   * <p>Note that many usages of this method can be replaced with simpler calls to {@link #zip}.
   * This method behaves equivalently to {@linkplain #zip zipping} the stream elements into
   * temporary pair objects and then using {@link Stream#forEach} on that stream.
   *

MinIO synchronizes objects in the bucket with entries in a hash. For each entry, the key is formatted as "bucketName/objectName" for an object that exists in the bucket, and the value is the JSON-encoded event data about the operation that created/replaced the object in MinIO. When objects are updated or deleted, the corresponding entry in the hash is also updated or deleted.

When the _access_ format is used, MinIO appends events to a list using [RPUSH](https://redis.io/commands/rpush)....

	if err != nil {
		t.Fatal(err)
	}

	// Write xl.meta with different modtime to simulate the case where a disk had
	// gone down when an object was replaced by a new object.
	fileInfoOutDated := fileInfoPreHeal
	fileInfoOutDated.ModTime = time.Now()
	err = disk.WriteMetadata(t.Context(), "", bucket, object, fileInfoOutDated)
	if err != nil {
		t.Fatal(err)
	}

   * served by the first enqueued response; the second request by the second enqueued response; and
   * so on.
   *
   * @throws ClassCastException if the default dispatcher has been
   * replaced with [setDispatcher][dispatcher].
   */
  public fun enqueue(response: MockResponse) {
    (dispatcher as QueueDispatcher).enqueue(response)
  }

  /**

     * @param replace
     *            Whether an existing destination file should be replaced (only supported with SMB2)
     * @throws CIFSException if an error occurs renaming the resource
     * @throws NullPointerException
     *             If the <code>dest</code> argument is <code>null</code>
     */
    void renameTo(SmbResource dest, boolean replace) throws CIFSException;

    /**

		return res, errNoHealRequired
	}

	if !reflect.DeepEqual(s.format, refFormat) {
		// Format is corrupted and unrecognized by the running instance.
		healingLogIf(ctx, fmt.Errorf("Unable to heal the newly replaced drives due to format.json inconsistencies, please engage MinIO support for further assistance: %w",
			errCorruptedFormat))
		return res, errCorruptedFormat
	}

	formatOpID := mustGetUUID()

}

// Metadata metadata items implemented to ensure XML marshaling works.
type Metadata struct {
	Items []struct {
		Key   string
		Value string
	}
}

// Set add items, duplicate items get replaced.
func (s *Metadata) Set(k, v string) {
	for i, item := range s.Items {
		if item.Key == k {
			s.Items[i] = struct {
				Key   string
				Value string
			}{
				Key:   k,
				Value: v,
			}