}

    /**
     * Simply converts the given content to an xml string.
     *
     * @param content the object to convert
     * @return the xml string representation
     * @throws XmlWriterException if an error occurs during the transformation
     * @see #fromXmlString(String)
     */
    public static String toXml(@Nonnull Model content) throws XmlWriterException {

   * as a {@link LinkedHashSet}. All list tests and sorted-collection tests automatically specify
   * this feature.
   */
  KNOWN_ORDER,

  /**
   * Indicates that a collection has a different {@link Object#toString} representation than most
   * collections. If not specified, the collection tests will examine the value returned by {@link
   * Object#toString}.
   */
  NON_STANDARD_TOSTRING,

  /**

    }

    /**
     * Simply converts the given content to an xml string.
     *
     * @param content the object to convert
     * @return the xml string representation
     * @throws XmlWriterException if an error occurs during the transformation
     * @see #fromXmlString(String)
     */
    public static String toXml(@Nonnull Model content) throws XmlWriterException {

   */
  @Override
  boolean equals(@CheckForNull Object o);

  /** Returns {@code asMapOfRanges().hashCode()}. */
  @Override
  int hashCode();

  /** Returns a readable string representation of this range map. */
  @Override
  String toString();

  @Override
  @GwtIncompatible // NavigableSet
  ImmutableSortedSet<C> createDescendingSet() {
    return new DescendingImmutableSortedSet<>(this);
  }

  /** Returns a shorthand representation of the contents such as {@code "[1..100]"}. */
  @Override
  public String toString() {
    return range().toString();
  }

  /**

 * and forbids implementations or extensions with parallel edges. If you need parallel edges, use
 * {@link Network}. (You can use a positive {@code Integer} edge value as a loose representation of
 * edge multiplicity, but the {@code *degree()} and mutation methods will not reflect your
 * interpretation of the edge value as its multiplicity.)
 *
 * <h3>Building a {@code ValueGraph}</h3>
 *

  }

  /**
   * Returns a string containing the string representation of each of {@code parts}, using the
   * previously configured separator between each.
   */
  public final String join(Iterable<? extends @Nullable Object> parts) {
    return join(parts.iterator());
  }

  /**
   * Returns a string containing the string representation of each of {@code parts}, using the

    return (delegate != null)
        ? delegate.toArray(a)
        : ObjectArrays.toArrayImpl(requireElements(), 0, size, a);
  }

  /**
   * Ensures that this {@code CompactHashSet} has the smallest representation in memory, given its
   * current size.
   */
  public void trimToSize() {
    if (needsAllocArrays()) {
      return;
    }
    Set<E> delegate = delegateOrNull();
    if (delegate != null) {

   *
   * <p>This implementation is likely to be faster than {@code Float.parseFloat} if many failures
   * are expected.
   *
   * @param string the string representation of a {@code float} value
   * @return the floating point value represented by {@code string}, or {@code null} if {@code
   *     string} has a length of zero or cannot be parsed as a {@code float} value

    /**
     * Returns the lower boundary of this range, or {@code null} if none.
     */
    @Nullable
    Boundary getLowerBoundary();

    /**
     * Returns a string representation of this version range
     * @return the string representation of this version range
     */
    @Nonnull
    String asString();

    /**
     * Represents range boundary.
     */
    interface Boundary {
        /**