*/
  public static <T extends @Nullable Object> TopKSelector<T> least(
      int k, Comparator<? super T> comparator) {
    return new TopKSelector<>(comparator, k);
  }

  /**
   * Returns a {@code TopKSelector} that collects the greatest {@code k} elements added to it,
   * relative to the natural ordering of the elements, and returns them via {@link #topK} in
   * descending order.
   *