the above copyright notice, this list of conditions and the following disclaimer in
the documentation and/or other materials provided with the distribution.

Neither the name of Hamcrest nor the names of its contributors may be used to endorse
or promote products derived from this software without specific prior written
permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY

        "discard_punctuation" : "false"
      },
      "fess_korean_normal": {
        "type": "fess_korean_tokenizer",
        "decompound_mode": "mixed",
        "user_dict_path": "${fess.dictionary.path}ko/nori.txt"
      }
    },
    "analyzer" : {
      "reading_analyzer" : {
        "type" : "custom",
        "tokenizer" : "fess_japanese_normal",
        "filter" : ["reading_form"]
      },

Todo **FastAPI** está basado en estos type hints, lo que le da muchas ventajas y beneficios.

Pero, así nunca uses **FastAPI** te beneficiarás de aprender un poco sobre los type hints.

/// note | Nota

Si eres un experto en Python y ya lo sabes todo sobre los type hints, salta al siguiente capítulo.

///

## Motivación

Comencemos con un ejemplo simple:

```Python

E se você clicar, você terá um pequeno formulário de autorização para digitar o `username` e `senha` (e outros campos opcionais):

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

/// note | "Nota"



///

	Não importa o que você digita no formulário, não vai funcionar ainda. Mas nós vamos chegar lá.

  /**
   * Returns a {@code ContiguousSet} containing the same values in the given domain {@linkplain
   * Range#contains contained} by the range.
   *
   * @throws IllegalArgumentException if neither range nor the domain has a lower bound, or if
   *     neither has an upper bound
   * @since 13.0
   */
  public static <C extends Comparable> ContiguousSet<C> create(
      Range<C> range, DiscreteDomain<C> domain) {

  echo JAVA_HOME is set to "%JAVA_HOME%", but "%%JAVA_HOME%%\bin\java.exe" does not exist. >&2
  goto error
)

:checkJavaCmd
if not exist "%JAVACMD%" (
  echo The java.exe command does not exist in PATH nor is JAVA_HOME set, so Apache Maven cannot be started. >&2
  goto error
)
:chkMHome
set "MAVEN_HOME=%~dp0"
set "MAVEN_HOME=%MAVEN_HOME:~0,-5%"
if "%MAVEN_HOME%"=="" goto error

:checkMCmd

		</postConstruct>
		<postConstruct name="addConfigFile">
			<arg>"fess"</arg>
			<arg>"ja/mapping.txt"</arg>
		</postConstruct>
		<postConstruct name="addConfigFile">
			<arg>"fess"</arg>
			<arg>"ko/nori.txt"</arg>
		</postConstruct>
		<postConstruct name="addConfigFile">
			<arg>"fess"</arg>
			<arg>"lt/protwords.txt"</arg>
		</postConstruct>
		<postConstruct name="addConfigFile">
			<arg>"fess"</arg>

![ReDoc](https://fastapi.tiangolo.com/img/index/index-06-redoc-02.png)

### Apenas Python moderno

Tudo é baseado no padrão das declarações de **tipos do Python 3.8** (graças ao Pydantic). Nenhuma sintaxe nova para aprender. Apenas o padrão moderno do Python.

    CacheTesting.checkValidState(cache);
  }

  /**
   * With an unlimited-size cache with maxWeight of 0, entries weighing 0 should still be cached.
   * Entries with positive weight should not be cached (nor dump existing cache).
   */
  public void testEviction_maxWeight_zero() {
    CountingRemovalListener<Integer, Integer> removalListener = countingRemovalListener();
    IdentityLoader<Integer> loader = identityLoader();

```Python hl_lines="2"
@app.get('/')
async def read_results():
    results = await some_library()
    return results
```

/// note | Nota

Solo puedes usar `await` dentro de funciones creadas con `async def`.

///

---