```Python
q: Union[str, None] = None
```

Mas o declara explicitamente como um parâmetro de consulta.

/// info | Informação

Tenha em mente que o FastAPI se preocupa com a parte:

```Python
= None
```

Ou com:

```Python
= Query(default=None)
```

E irá utilizar o `None` para detectar que o parâmetro de consulta não é obrigatório.

Da lista de conceitos de implantação acima, o uso de trabalhadores ajudaria principalmente com a parte da **replicação** e um pouco com as **reinicializações**, mas você ainda precisa cuidar dos outros:

* **Segurança - HTTPS**
* **Executando na inicialização**
* ***Reinicializações***

        String encodedFieldName = BaseEncoding.base64().encode(originalFieldName.getBytes(StandardCharsets.UTF_8));
        String fullFieldName = Constants.FACET_FIELD_PREFIX + encodedFieldName;

        // Extract the encoded part
        String extractedEncoded = fullFieldName.substring(Constants.FACET_FIELD_PREFIX.length());
        assertEquals(encodedFieldName, extractedEncoded);

        // Decode back to original

    signifFloor &= SIGNIFICAND_MASK; // remove the implied bit

    /*
     * We round up if either the fractional part of signif is strictly greater than 0.5 (which is
     * true if the 0.5 bit is set and any lower bit is set), or if the fractional part of signif is
     * >= 0.5 and signifFloor is odd (which is true if both the 0.5 bit and the 1 bit are set).
     */
    boolean increment =

Python 3.6+

FastAPI è basata su importanti librerie:

* <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a> per le parti web.
* <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a> per le parti dei dati.

## Installazione

<div class="termy">

```console
$ pip install fastapi

---> 100%
```

</div>

 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/**
 * Testing utilities. This package is a part of the open-source <a
 * href="https://github.com/google/guava">Guava</a> library.
 */
@CheckReturnValue
@NullMarked
package com.google.common.testing;

import com.google.errorprone.annotations.CheckReturnValue;

 *
 * <p>See the Guava User Guide article on <a
 * href="https://github.com/google/guava/wiki/CachesExplained">caches</a>.
 *
 * <p>This package is a part of the open-source <a href="https://github.com/google/guava">Guava</a>
 * library.
 *
 * @author Charles Fry
 */
@CheckReturnValue
@NullMarked
package com.google.common.cache;

/// warning

Extra keys passed to `Field` will also be present in the resulting OpenAPI schema for your application.
As these keys may not necessarily be part of the OpenAPI specification, some OpenAPI tools, for example [the OpenAPI validator](https://validator.swagger.io/), may not work with your generated schema.

///

## Recap { #recap }

 * Service}.
 *
 * <p>Commonly used utilities include {@link Futures}, {@link MoreExecutors}, {@link
 * ThreadFactoryBuilder}, and {@link Uninterruptibles}.
 *
 * <p>This package is a part of the open-source <a href="https://github.com/google/guava">Guava</a>
 * library.
 */
@CheckReturnValue
@NullMarked
package com.google.common.util.concurrent;

///

## Returning a custom `Response` { #returning-a-custom-response }

The example above shows all the parts you need, but it's not very useful yet, as you could have just returned the `item` directly, and **FastAPI** would put it in a `JSONResponse` for you, converting it to a `dict`, etc. All that by default.