*/
  public static <T extends @Nullable Object> Iterator<T> concat(
      Iterator<? extends Iterator<? extends T>> inputs) {
    return new ConcatenatedIterator<>(inputs);
  }

  /** Concats a varargs array of iterators without making a defensive copy of the array. */
  static <T extends @Nullable Object> Iterator<T> concatNoDefensiveCopy(
      Iterator<? extends T>... inputs) {

				"Cookie3": {"OldValue3a", "OldValue3b"},
				"Cookie4": {"OldValue4"},
				"Cycle":   {"0"},
			}
			SetCookie(w, &Cookie{Name: "Cycle", Value: "1", Path: "/"})
			SetCookie(w, &Cookie{Name: "Cookie2", Path: "/", MaxAge: -1}) // Delete cookie from Header
			Redirect(w, r, "/", StatusFound)
		case "1":
			want = map[string][]string{
				"Cookie1": {"OldValue1a", "OldValue1b"},
				"Cookie3": {"OldValue3a", "OldValue3b"},