* the beginning and from the end of the string. For example:
   *
   * {@snippet :
   * CharMatcher.anyOf("ab").trimFrom("abacatbab")
   * }
   *
   * ... returns {@code "cat"}.
   *
   * <p>Note that:
   *
   * {@snippet :
   * CharMatcher.inRange('\0', ' ').trimFrom(str)
   * }
   *
   * ... is equivalent to {@link String#trim()}.
   */

 *       {@snippet :
 * new TypeToken<List<String>>() {}
 * }
 *       <p>Note that it's critical that the actual type argument is carried by a subclass. The
 *       following code is wrong because it only captures the {@code <T>} type variable of the
 *       {@code listType()} method signature; while {@code <String>} is lost in erasure:
 *       {@snippet :
 * class Util {

   * the beginning and from the end of the string. For example:
   *
   * {@snippet :
   * CharMatcher.anyOf("ab").trimFrom("abacatbab")
   * }
   *
   * ... returns {@code "cat"}.
   *
   * <p>Note that:
   *
   * {@snippet :
   * CharMatcher.inRange('\0', ' ').trimFrom(str)
   * }
   *
   * ... is equivalent to {@link String#trim()}.
   */

   *
   * <p>For example,
   *
   * {@snippet :
   * List<String> badGuys = Arrays.asList("Inky", "Blinky", "Pinky", "Pinky", "Clyde");
   * Function<String, Integer> stringLengthFunction = ...;
   * Multimap<Integer, String> index = Multimaps.index(badGuys, stringLengthFunction);
   * System.out.println(index);
   * }
   *
   * <p>prints
   *
   * {@snippet :
   * {4=[Inky], 6=[Blinky], 5=[Pinky, Pinky, Clyde]}

   *
   * <p>For example,
   *
   * {@snippet :
   * List<String> badGuys = Arrays.asList("Inky", "Blinky", "Pinky", "Pinky", "Clyde");
   * Function<String, Integer> stringLengthFunction = ...;
   * Multimap<Integer, String> index = Multimaps.index(badGuys, stringLengthFunction);
   * System.out.println(index);
   * }
   *
   * <p>prints
   *
   * {@snippet :
   * {4=[Inky], 6=[Blinky], 5=[Pinky, Pinky, Clyde]}

   *
   * {@snippet :
   * NavigableSet<E> set = synchronizedNavigableSet(new TreeSet<E>());
   *  ...
   * synchronized (set) {
   *   // Must be in the synchronized block
   *   Iterator<E> it = set.iterator();
   *   while (it.hasNext()) {
   *     foo(it.next());
   *   }
   * }
   * }
   *
   * <p>or:
   *
   * {@snippet :

 * its caller has made a mistake. This allows constructs such as
 *
 * {@snippet :
 * public static double sqrt(double value) {
 *   if (value < 0) {
 *     throw new IllegalArgumentException("input is negative: " + value);
 *   }
 *   // calculate square root
 * }
 * }
 *
 * <p>to be replaced with the more compact
 *
 * {@snippet :
 * public static double sqrt(double value) {

 * its caller has made a mistake. This allows constructs such as
 *
 * {@snippet :
 * public static double sqrt(double value) {
 *   if (value < 0) {
 *     throw new IllegalArgumentException("input is negative: " + value);
 *   }
 *   // calculate square root
 * }
 * }
 *
 * <p>to be replaced with the more compact
 *
 * {@snippet :
 * public static double sqrt(double value) {

 * cache instances created by {@code CacheBuilder} will not perform any type of eviction.
 *
 * <p>Usage example:
 *
 * {@snippet :
 * LoadingCache<Key, Graph> graphs = CacheBuilder.newBuilder()
 *     .maximumSize(10000)
 *     .expireAfterWrite(Duration.ofMinutes(10))
 *     .removalListener(MY_LISTENER)
 *     .build(

  }

  /**
   * A builder for creating immutable sorted map instances, especially {@code public static final}
   * maps ("constant maps"). Example:
   *
   * {@snippet :
   * static final ImmutableSortedMap<Integer, String> INT_TO_WORD =
   *     new ImmutableSortedMap.Builder<Integer, String>(Ordering.natural())
   *         .put(1, "one")
   *         .put(2, "two")