* it may throw the exception on the (n-1)th element (oops!).
     */

    /* Checks the case where the first element throws an exception. */

    List<Integer> list = emptyList();
    Iterator<Integer> iterator = peekingIterator(new ThrowsAtEndIterator<Integer>(list));
    assertNextThrows(iterator);

    /* Checks the case where a later element throws an exception. */

    list = Lists.newArrayList(1, 2);

Flask est un "micro-framework", il ne comprend pas d'intégrations de bases de données ni beaucoup de choses qui sont fournies par défaut dans Django.

Cette simplicité et cette flexibilité permettent d'utiliser des bases de données NoSQL comme principal système de stockage de données.

func (ruleList FilterRuleList) Pattern() string {
	var prefix string
	var suffix string

	for _, rule := range ruleList.Rules {
		switch rule.Name {
		case "prefix":
			prefix = rule.Value
		case "suffix":
			suffix = rule.Value
		}
	}

	return NewPattern(prefix, suffix)
}

// S3Key - represents elements inside <S3Key>...</S3Key>
type S3Key struct {

        switch (form.crudMode) {
        case CrudMode.CREATE:
            return OptionalEntity.of(new WebAuthentication()).map(entity -> {
                entity.setCreatedBy(username);
                entity.setCreatedTime(currentTime);
                return entity;
            });
        case CrudMode.EDIT:
            if (form instanceof EditForm) {

    // Check that this thread has been marked as interrupted again now that the thread has been
    // returned by SequentialExecutor. Clear the bit while checking so that the test doesn't hose
    // JUnit or some other test case.
    assertThat(Thread.interrupted()).isTrue();
  }

  public void testInterrupt_doesNotInterruptSubsequentTask() throws Exception {
    // Run a task that interrupts its thread (i.e. this thread).
    e.execute(

  optional string requestSubResource = 15;

  // Name is the name of the object as presented in the request.  On a CREATE operation, the client may omit name and
  // rely on the server to generate the name.  If that is the case, this field will contain an empty string.
  // +optional
  optional string name = 5;

  // Namespace is the namespace associated with the request (if any).
  // +optional
  optional string namespace = 6;

  optional string requestSubResource = 15;

  // Name is the name of the object as presented in the request.  On a CREATE operation, the client may omit name and
  // rely on the server to generate the name.  If that is the case, this field will contain an empty string.
  // +optional
  optional string name = 5;

  // Namespace is the namespace associated with the request (if any).
  // +optional
  optional string namespace = 6;

    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);

              logger.severe("InterruptenatorTask did not exit; future tests may be affected");
              /*
               * This won't do any good under JUnit 3, but I'll leave it around in
               * case we ever switch to JUnit 4:
               */
              fail();
            }
          }
        });
  }

  // TODO(cpovirk): promote to Uninterruptibles, and add untimed version

<img src="/img/tutorial/dataclasses/image01.png">

## Dataclasses em Estruturas de Dados Aninhadas

Você também pode combinar `dataclasses` com outras anotações de tipo para criar estruturas de dados aninhadas.

Em alguns casos, você ainda pode ter que usar a versão do Pydantic das `dataclasses`. Por exemplo, se você tiver erros com a documentação da API gerada automaticamente.