assertEquals(ImmutableListMultimap.of(1, "one"), ImmutableListMultimap.of("one", 1).inverse());
    assertEquals(
        ImmutableListMultimap.of(1, "one", 2, "two"),
        ImmutableListMultimap.of("one", 1, "two", 2).inverse());
    assertEquals(
        ImmutableListMultimap.of("of", 'o', "of", 'f', "to", 't', "to", 'o').inverse(),
        ImmutableListMultimap.of('o', "of", 'f', "of", 't', "to", 'o', "to"));

    assertEquals(ImmutableListMultimap.of(1, "one"), ImmutableListMultimap.of("one", 1).inverse());
    assertEquals(
        ImmutableListMultimap.of(1, "one", 2, "two"),
        ImmutableListMultimap.of("one", 1, "two", 2).inverse());
    assertEquals(
        ImmutableListMultimap.of("of", 'o', "of", 'f', "to", 't', "to", 'o').inverse(),
        ImmutableListMultimap.of('o', "of", 'f', "of", 't', "to", 'o', "to"));

          .put(Multimap.class, ImmutableMultimap.of())
          .put(ImmutableMultimap.class, ImmutableMultimap.of())
          .put(ListMultimap.class, ImmutableListMultimap.of())
          .put(ImmutableListMultimap.class, ImmutableListMultimap.of())
          .put(SetMultimap.class, ImmutableSetMultimap.of())
          .put(ImmutableSetMultimap.class, ImmutableSetMultimap.of())
          .put(

        ImmutableListMultimap.Builder::combine,
        ImmutableListMultimap.Builder::build);
  }

  static <T extends @Nullable Object, K, V>
      Collector<T, ?, ImmutableListMultimap<K, V>> flatteningToImmutableListMultimap(
          Function<? super T, ? extends K> keyFunction,
          Function<? super T, ? extends Stream<? extends V>> valuesFunction) {
    checkNotNull(keyFunction);

   */
  public static <K, V> ImmutableMultimap<K, V> of() {
    return ImmutableListMultimap.of();
  }

  /** Returns an immutable multimap containing a single entry. */
  public static <K, V> ImmutableMultimap<K, V> of(K k1, V v1) {
    return ImmutableListMultimap.of(k1, v1);
  }

  /** Returns an immutable multimap containing the given entries, in order. */

                return wrap((ListMultimap<?, ?>) delegate);
              }
            });
  }

  public void testEquals() {
    ListMultimap<Integer, String> map1 = ImmutableListMultimap.of(1, "one");
    ListMultimap<Integer, String> map2 = ImmutableListMultimap.of(2, "two");
    new EqualsTester()
        .addEqualityGroup(map1, wrap(map1), wrap(map1))
        .addEqualityGroup(map2, wrap(map2))
        .testEquals();
  }

   */
  public static <K, V> ImmutableMultimap<K, V> of() {
    return ImmutableListMultimap.of();
  }

  /** Returns an immutable multimap containing a single entry. */
  public static <K, V> ImmutableMultimap<K, V> of(K k1, V v1) {
    return ImmutableListMultimap.of(k1, v1);
  }

  /** Returns an immutable multimap containing the given entries, in order. */

 * @author Gregory Kick
 */
@GwtCompatible
@Immutable
public final class MediaType {
  private static final String CHARSET_ATTRIBUTE = "charset";
  private static final ImmutableListMultimap<String, String> UTF_8_CONSTANT_PARAMETERS =
      ImmutableListMultimap.of(CHARSET_ATTRIBUTE, Ascii.toLowerCase(UTF_8.name()));

  /** Matcher for type, subtype and attributes. */
  private static final CharMatcher TOKEN_MATCHER =
      ascii()

import com.google.common.annotations.J2ktIncompatible;
import java.util.Collection;

/**
 * Implementation of {@link ImmutableListMultimap} with no entries.
 *
 * @author Jared Levy
 */
@GwtCompatible
final class EmptyImmutableListMultimap extends ImmutableListMultimap<Object, Object> {
  static final EmptyImmutableListMultimap INSTANCE = new EmptyImmutableListMultimap();

  private EmptyImmutableListMultimap() {

 * @author Gregory Kick
 */
@GwtCompatible
@Immutable
public final class MediaType {
  private static final String CHARSET_ATTRIBUTE = "charset";
  private static final ImmutableListMultimap<String, String> UTF_8_CONSTANT_PARAMETERS =
      ImmutableListMultimap.of(CHARSET_ATTRIBUTE, Ascii.toLowerCase(UTF_8.name()));

  /** Matcher for type, subtype and attributes. */
  private static final CharMatcher TOKEN_MATCHER =
      ascii()