app = FastAPI()


async def verify_token(x_token: str = Header()):
    if x_token != "fake-super-secret-token":
        raise HTTPException(status_code=400, detail="X-Token header invalid")


async def verify_key(x_key: str = Header()):
    if x_key != "fake-super-secret-key":
        raise HTTPException(status_code=400, detail="X-Key header invalid")
    return x_key

   */
  final <T> T newProxy(TypeToken<T> interfaceType) {
    Set<Class<?>> interfaceClasses = new LinkedHashSet<>();
    Set<Class<? super T>> allInterfaceClasses = interfaceType.getTypes().interfaces().rawTypes();
    for (Class<? super T> itf : allInterfaceClasses) {
      Iterator<Class<?>> iterator = interfaceClasses.iterator();
      boolean addToSet = true;
      while (iterator.hasNext()) {

     * @param cause The cause, may be {@code null}.
     */
    public UnresolvableModelException(
            String message, String groupId, String artifactId, String version, Throwable cause) {
        super(message, cause);
        this.groupId = (groupId != null) ? groupId : "";
        this.artifactId = (artifactId != null) ? artifactId : "";
        this.version = (version != null) ? version : "";
    }

    /**

    assertAssignable(
        new TypeToken<ArrayList<? super Number>>() {}, new TypeToken<List<? super N11>>() {});

    // ? super Number
    assertNotAssignable(
        new TypeToken<ArrayList<N11>>() {}, new TypeToken<List<? super Number>>() {});
    assertAssignable(
        new TypeToken<ArrayList<Number>>() {}, new TypeToken<List<? super Number>>() {});
    assertAssignable(

     * has expired and is no longer valid for use.
     */
    public DictionaryExpiredException() {
        super();
    }

    //    public DictionaryExpiredException() {
    //        super("errors.expired_dict_id");
    //    }

   *     down the executor after the last event has been posted to this event bus.
   */
  public AsyncEventBus(String identifier, Executor executor) {
    super(identifier, executor, Dispatcher.legacyAsync(), LoggingHandler.INSTANCE);
  }

  /**
   * Creates a new AsyncEventBus that will use {@code executor} to dispatch events.
   *

   */
  REJECTS_DUPLICATES_AT_CREATION,

  GENERAL_PURPOSE(SUPPORTS_PUT, SUPPORTS_REMOVE);

  private final Set<Feature<? super Map>> implied;

  MapFeature(Feature<? super Map>... implied) {
    this.implied = copyToSet(implied);
  }

  @Override
  public Set<Feature<? super Map>> getImpliedFeatures() {
    return implied;
  }

  @Retention(RetentionPolicy.RUNTIME)
  @Inherited
  @TesterAnnotation

@NullUnmarked
public class TypeTokenResolutionTest extends TestCase {

  private static class Foo<A, B> {

    Class<? super A> getClassA() {
      return new TypeToken<A>(getClass()) {}.getRawType();
    }

    Class<? super B> getClassB() {
      return new TypeToken<B>(getClass()) {}.getRawType();
    }

    Class<? super A[]> getArrayClassA() {
      return new TypeToken<A[]>(getClass()) {}.getRawType();
    }

@NullUnmarked
public class TypeTokenResolutionTest extends TestCase {

  private static class Foo<A, B> {

    Class<? super A> getClassA() {
      return new TypeToken<A>(getClass()) {}.getRawType();
    }

    Class<? super B> getClassB() {
      return new TypeToken<B>(getClass()) {}.getRawType();
    }

    Class<? super A[]> getArrayClassA() {
      return new TypeToken<A[]>(getClass()) {}.getRawType();
    }

    @Override
    @J2ktIncompatible
    @GwtIncompatible
        Object writeReplace() {
      return super.writeReplace();
    }
  }

  static <R, C, V> RegularImmutableTable<R, C, V> forCells(
      List<Cell<R, C, V>> cells,
      @Nullable Comparator<? super R> rowComparator,
      @Nullable Comparator<? super C> columnComparator) {
    checkNotNull(cells);
    if (rowComparator != null || columnComparator != null) {