*/
    fun clearHeaders() =
      apply {
        headers = Headers.Builder()
      }

    /**
     * Adds [header] as an HTTP header. For well-formed HTTP [header] should contain a name followed
     * by a colon and a value.
     */
    fun addHeader(header: String) =
      apply {
        headers.add(header)
      }

    /**

	var containerID string
	for _, cgroup := range cgroups {
		candidatePodUID, candidateContainerID, ok := getPodUIDAndContainerIDFromCGroupPath(cgroup.GroupPath)
		switch {
		case !ok:
			// Cgroup did not contain a container ID.
			continue
		case containerID == "":
			// This is the first container ID found so far.
			podUID = candidatePodUID
			containerID = candidateContainerID
		case containerID != candidateContainerID:

  V get(K key, Callable<? extends V> loader) throws ExecutionException;

  /**
   * Returns a map of the values associated with {@code keys} in this cache. The returned map will
   * only contain entries which are already present in the cache.
   *
   * @since 11.0
   */
  /*
   * <? extends Object> is mostly the same as <?> to plain Java. But to nullness checkers, they

- Restores priority of static control plane pods in the cluster/gce/manifests control-plane manifests ([#89970](https://github.com/kubernetes/kubernetes/pull/89970), [@liggitt](https://github.com/liggitt)) [SIG Cluster Lifecycle and Node]

### Other (Cleanup or Flake)

        iterator.remove();
        fail("Remove on unmodifiable iterator succeeded");
      } catch (UnsupportedOperationException expected) {
      }
    }
  }

  /**
   * Asserts that two iterators contain elements in tandem.
   *
   * <p>This test only works with iterators that iterate over a finite set.
   */
  public static void assertIteratorsInOrder(
      Iterator<?> expectedIterator, Iterator<?> actualIterator) {

     * potential NTLM fallback (if the server does not support kerberos).
     * 
     * @param subject
     *            represents the user who perform Kerberos authentication. Should at least contain a TGT for the user.
     * @param domain
     *            domain for NTLM fallback
     * @param username
     *            user for NTLM fallback
     * @param password
     *            password for NTLM fallback

	// StatelessHandler is handlers for one to many requests,
	// where responses may be dropped.
	// Stateless requests provide no incoming stream and there is no flow control
	// on outgoing messages.
	StatelessHandler struct {
		Handle StatelessHandlerFn
		// OutCapacity is the output capacity on the caller.
		// If <= 0 capacity will be 1.
		OutCapacity int
	}

    checkArgument(rowList.isEmpty() == columnList.isEmpty());

    /*
     * TODO(jlevy): Support only one of rowKey / columnKey being empty? If we
     * do, when columnKeys is empty but rowKeys isn't, rowKeyList() can contain
     * elements but rowKeySet() will be empty and containsRow() won't
     * acknowledge them.
     */
    rowKeyToIndex = Maps.indexMap(rowList);
    columnKeyToIndex = Maps.indexMap(columnList);

// HTTPIngressPath associates a path with a backend. Incoming urls matching the
// path are forwarded to the backend.
message HTTPIngressPath {
  // path is matched against the path of an incoming request. Currently it can
  // contain characters disallowed from the conventional "path" part of a URL
  // as defined by RFC 3986. Paths must begin with a '/' and must be present
  // when using PathType with value "Exact" or "Prefix".
  // +optional

   *
   * <p>The resulting set of edges will be parallel (i.e. have equal {@link
   * #incidentNodes(Object)}). If this network does not {@link #allowsParallelEdges() allow parallel
   * edges}, the resulting set will contain at most one edge (equivalent to {@code
   * edgeConnecting(nodeU, nodeV).asSet()}).
   *
   * <p>If either {@code nodeU} or {@code nodeV} are removed from the network after this method is