---

**Note** : vous pouvez mélanger `def` et `async def` dans vos *fonctions de chemin* autant que nécessaire, **FastAPI** saura faire ce qu'il faut avec.

Au final, peu importe le cas parmi ceux ci-dessus, **FastAPI** fonctionnera de manière asynchrone et sera extrêmement rapide.

        assertTrue(result.contains("backslash"));
    }

    // Mock classes
    private static class MockFessConfig extends FessConfig.SimpleImpl {
        private static final long serialVersionUID = 1L;

        @Override
        public String getSlackWebhookUrls() {
            return "https://hooks.slack.com/services/test";
        }

        @Override

### Gerar um Cliente TypeScript com o OpenAPI Pré-processado

Agora, como o resultado final está em um arquivo `openapi.json`, você modificaria o `package.json` para usar esse arquivo local, por exemplo:

```JSON  hl_lines="7"
{
  "name": "frontend-app",
  "version": "1.0.0",
  "description": "",

    assertEquals(null, elementSet.first());
    assertEquals("b", elementSet.last());
    assertEquals(comparator, elementSet.comparator());
  }

  private static final Comparator<String> DEGENERATE_COMPARATOR =
      new Comparator<String>() {
        @Override
        public int compare(String o1, String o2) {
          return o1.length() - o2.length();
        }
      };

    return tmp.toArray(new String[0]);
  }

  static <T> Comparator<T> arbitraryNullFriendlyComparator() {
    return new NullFriendlyComparator<>();
  }

  private static final class NullFriendlyComparator<T> implements Comparator<T>, Serializable {
    @Override
    public int compare(T left, T right) {
      return String.valueOf(left).compareTo(String.valueOf(right));
    }
  }

<img src="/img/tutorial/security/image02.png">

/// note

It doesn't matter what you type in the form, it won't work yet. But we'll get there.

///

This is of course not the frontend for the final users, but it's a great automatic tool to document interactively all your API.

It can be used by the frontend team (that can also be yourself).

It can be used by third party applications and systems.

Puedes leer más al final de esta página.

///

## Argumentos adicionales en `Field`

Cuando usas `Field()` con modelos de Pydantic, también puedes declarar `examples` adicionales:

     *
     * Expected outputs are generated by the code itself, but they've been
     * checked against the inputs under Bash in order to confirm that the two
     * forms are equivalent (though not necessarily minimal, though we hope this
     * to be the case). Thus, this test is more of a regression test.
     *
     * Rough instructions to regenerate the test outputs and verify correctness:
     * - Temporarily change this test:

        assertEquals(engine3, retrieved);
    }

    // Test implementation classes
    private static class TestScriptEngine implements ScriptEngine {
        private final String identifier;

        public TestScriptEngine() {
            this("default");
        }

        public TestScriptEngine(String identifier) {
            this.identifier = identifier;
        }

        assertEquals(10, JvmUtil.getJavaVersion());
        System.setProperty("java.version", "11.0.1");
        assertEquals(11, JvmUtil.getJavaVersion());
    }

    public void test_filterJvmOptions() {
        final String[] args = new String[] { //
                "-X111", //
                "8:-X222", //
                "10:-X333", //
                "11:-X444", //
                "8-:-X555", //
                "10-:-X666", //