TypeToken<?>.TypeSet types = TypeToken.of(new TypeCapture<A>() {}.capture()).getTypes();
    makeUnmodifiable(types.rawTypes())
        .containsExactly(Interface1.class, Interface2.class, Interface3.class, Iterable.class);
  }

  private static void assertSubtypeFirst(TypeToken<?>.TypeSet types) {
    assertSubtypeTokenBeforeSupertypeToken(types);

   *
   * @since 13.0
   */
  public class TypeSet extends ForwardingSet<TypeToken<? super T>> implements Serializable {

    private transient @Nullable ImmutableSet<TypeToken<? super T>> types;

    TypeSet() {}

    /** Returns the types that are interfaces implemented by this type. */
    public TypeSet interfaces() {
      return new InterfaceSet(this);
    }

    TypeToken<?>.TypeSet types = TypeToken.of(new TypeCapture<A>() {}.capture()).getTypes();
    makeUnmodifiable(types.rawTypes())
        .containsExactly(Interface1.class, Interface2.class, Interface3.class, Iterable.class);
  }

  private static void assertSubtypeFirst(TypeToken<?>.TypeSet types) {
    assertSubtypeTokenBeforeSupertypeToken(types);