/**
     * Returns the project to resume the build from.
     *
     * @return an {@link Optional} containing the project name to resume from, or empty if not specified
     */
    @Nonnull
    Optional<String> resumeFrom();

    /**
     * Returns the list of specified reactor projects to build instead of all projects.
     *

  @CheckForNull
  public E peekFirst() {
    return peek();
  }

  /**
   * Removes and returns the greatest element of this queue, or returns {@code null} if the queue is
   * empty.
   */
  @CanIgnoreReturnValue
  @CheckForNull
  public E pollLast() {
    return isEmpty() ? null : removeAndGet(getMaxElementIndex());
  }

  /**
   * Removes and returns the greatest element of this queue.
   *

//   - returns "legacy" if FileInfo is XLV1 and DataDir is
//     empty, returns DataDir otherwise
//   - returns "dataDir"
func (fi FileInfo) GetDataDir() string {
	if fi.Deleted {
		return "delete-marker"
	}
	if fi.XLV1 && fi.DataDir == "" {
		return "legacy"
	}
	return fi.DataDir
}

// IsCompressed returns true if the object is marked as compressed.
func (fi FileInfo) IsCompressed() bool {

	}
	return nil
}

// Enabled - returns true if versioning is enabled
func (v Versioning) Enabled() bool {
	return v.Status == Enabled
}

// Versioned returns if 'prefix' has versioning enabled or suspended.
func (v Versioning) Versioned(prefix string) bool {
	return v.PrefixEnabled(prefix) || v.PrefixSuspended(prefix)
}

// PrefixEnabled - returns true if versioning is enabled at the bucket and given
// prefix, false otherwise.

	// InferPodsFromTypedResource returns the pod names and namespace for the given typed resource
	InferPodsFromTypedResource(name, namespace string) ([]string, string, error)
	// Namespace returns the namespace specified by the user
	Namespace() string
	// IstioNamespace returns the Istio namespace specified by the user
	IstioNamespace() string

     * Returns the unique name of this path type, including the module to patch if any.
     * For example, if this type is {@link JavaPathType#MODULES}, then this method returns {@code "MODULES"}.
     * But if this type was created by {@code JavaPathType.patchModule("foo.bar")}, then this method returns
     * {@code "PATCH_MODULE:foo.bar"}.
     *
     * @return the programmatic name together with the module name on which it applies
     * @see #toString()

     *
     * @return the number of elements in this set (its cardinality).
     */
    @Override
    public int size() {
        return map.size();
    }

    /**
     * Returns true if this set contains no elements.
     *
     * @return true if this set contains no elements.
     */
    @Override
    public boolean isEmpty() {
        return map.isEmpty();
    }

    /**

  // unsafe, comparator() returns a comparator on the specified type
  // TODO(kevinb): evaluate whether or not of().comparator() should return null
  public static <K, V> ImmutableSortedMap<K, V> of() {
    return (ImmutableSortedMap<K, V>) NATURAL_EMPTY_MAP;
  }

  /** Returns an immutable map containing a single entry. */
  public static <K extends Comparable<? super K>, V> ImmutableSortedMap<K, V> of(K k1, V v1) {

	keyID string
	key   []byte
}

// Version returns the version of the builtin KMS.
func (secretKey) Version(ctx context.Context) (string, error) { return "v1", nil }

// APIs returns an error since the builtin KMS does not provide a list of APIs.
func (secretKey) APIs(ctx context.Context) ([]madmin.KMSAPI, error) {
	return nil, ErrNotSupported
}

// Status returns a set of endpoints and their KMS status. Since, the builtin KMS is not

		e.AllTierStats = e.AllTierStats.clone()
	}
	return e
}

// find a path in the cache.
// Returns nil if not found.
func (d *dataUsageCache) find(path string) *dataUsageEntry {
	due, ok := d.Cache[hashPath(path).Key()]
	if !ok {
		return nil
	}
	return &due
}

// isCompacted returns whether an entry is compacted.
// Returns false if not found.