ImmutableCollection<E> delegateCollection() {
    return delegate;
  }

  ImmutableList<? extends E> delegateList() {
    return delegateList;
  }

  @SuppressWarnings("unchecked") // safe covariant cast!
  @Override
  public UnmodifiableListIterator<E> listIterator(int index) {
    return (UnmodifiableListIterator<E>) delegateList.listIterator(index);
  }

  @GwtIncompatible // not present in emulated superclass

Puedes verificarlo en la interfaz de documentación en `/docs`:

<div class="screenshot">
<img src="/img/tutorial/request-form-models/image01.png">
</div>

## Prohibir Campos de Formulario Extra

En algunos casos de uso especiales (probablemente no muy comunes), podrías querer **restringir** los campos de formulario a solo aquellos declarados en el modelo de Pydantic. Y **prohibir** cualquier campo **extra**.

/// note | Nota

    @Override
    public boolean isActive(Profile profile) throws ProfileActivationException {
        Activation activation = profile.getActivation();

        String jdk = activation.getJdk();

        // null case is covered by canDetermineActivation(), so we can do a straight startsWith() here.
        if (jdk.startsWith("[") || jdk.startsWith("(")) {
            try {
                return matchJdkVersionRange(jdk);

You probably want to test the external provider once, but not necessarily call it for every test that runs.

In this case, you can override the dependency that calls that provider, and use a custom dependency that returns a mock user, only for your tests.

### Use the `app.dependency_overrides` attribute { #use-the-app-dependency-overrides-attribute }

By declaring a *path operation function* parameter with the type being the `Request` **FastAPI** will know to pass the `Request` in that parameter.

/// tip

Note that in this case, we are declaring a path parameter beside the request parameter.

So, the path parameter will be extracted, validated, converted to the specified type and annotated with OpenAPI.

* Implement and use well-known cryptographic tools, like Passlib and JWT tokens, etc.
* Add more granular permission controls with OAuth2 scopes where needed.
* ...etc.

Nevertheless, you might have a very specific use case where you really need to disable the API docs for some environment (e.g. for production) or depending on configurations from environment variables.

  # A local firewall rule for the container is added in
  # ci/official/utilities/setup_docker.sh.
else
  # The volume mapping flag below shares the user's gcloud credentials, if any,
  # with the container, in case the user has credentials stored there.
  # This would allow Bazel to authenticate for RBE.
  # Note: TF's CI does not have any credentials stored there.

        int prefixLen = 0, state = 0;

        /*
         * The canonicalization routine
         */
        for (int i = 0; i < length; i++) {
            switch (state) {
            case 0:
                if (in[i] != '/') {
                    // Checked exception (e.g. MalformedURLException) would be better
                    // but this would be a nightmare API wise

	if err != nil {
		return 0, err
	}
	defer lock.Close()
	if err := syscall.Flock(int(lock.Fd()), syscall.LOCK_EX); err != nil {
		return 0, err
	}

	// In case we're booting a device or emulator alongside all.bash, wait for
	// it to be ready. adb wait-for-device is not enough, we have to
	// wait for sys.boot_completed.

import java.util.concurrent.ExecutionException;
import java.util.concurrent.ExecutorService;
import junit.framework.TestCase;
import org.jspecify.annotations.NullUnmarked;

/**
 * Test case for {@link ListenableFutureTask}.
 *
 * @author Sven Mawson
 */
@NullUnmarked
public class ListenableFutureTaskTest extends TestCase {

  private ExecutorService exec;