"nici", "nimeni", "nişte", "noastră", "noastre", "noi", "noştri", "nostru", "nu", "ori", "oricând", "oricare", "oricât", "orice", "oricînd", "oricine", "oricît", "oricum", "oriunde", "până", "pe", "pentru", "peste", "pînă", "poate", "pot", "prea", "prima", "primul", "prin", "printr", "sa", "să", "săi", "sale", "sau", "său", "se", "şi", "sînt", "sîntem", "sînteţi", "spre", "sub", "sunt", "suntem", "sunteţi", "ta", "tăi", "tale", "tău", "te", "ţi", "ţie", "tine", "toată", "toate", "tot", "toţi", "totuşi",...

"nici", "nimeni", "nişte", "noastră", "noastre", "noi", "noştri", "nostru", "nu", "ori", "oricând", "oricare", "oricât", "orice", "oricînd", "oricine", "oricît", "oricum", "oriunde", "până", "pe", "pentru", "peste", "pînă", "poate", "pot", "prea", "prima", "primul", "prin", "printr", "sa", "să", "săi", "sale", "sau", "său", "se", "şi", "sînt", "sîntem", "sînteţi", "spre", "sub", "sunt", "suntem", "sunteţi", "ta", "tăi", "tale", "tău", "te", "ţi", "ţie", "tine", "toată", "toate", "tot", "toţi", "totuşi",...

    Como siempre, en FastAPI puedes combinar `def` y `async def` según sea necesario.

    Si necesitas un repaso sobre cuándo usar cuál, revisa la sección _"¿Con prisa?"_ en la documentación sobre [`async` y `await`](../async.md#in-a-hurry).

9. Esta *path operation function* no está devolviendo dataclasses (aunque podría), sino una lista de diccionarios con datos internos.

    // Add boundary values manually to avoid over/under flow (this covers 2^N for 0 and 31).
    intValues.add(Integer.MAX_VALUE - 1, Integer.MAX_VALUE);
    // Add values up to 40. This covers cases like "square of a prime" and such.
    for (int i = 1; i <= 40; i++) {
      intValues.add(i);
    }
    // Now add values near 2^N for lots of values of N.
    for (int exponent : asList(2, 3, 4, 9, 15, 16, 17, 24, 25, 30)) {

    This is useful when we use ConstrainedDecimal to represent Numeric(x,0)
    where an integer (but not int typed) is used. Encoding this as a float
    results in failed round-tripping between encode and parse.
    Our Id type is a prime example of this.

    >>> decimal_encoder(Decimal("1.0"))
    1.0

    >>> decimal_encoder(Decimal("1"))
    1

    >>> decimal_encoder(Decimal("NaN"))
    nan
    """

No importa. **FastAPI** sabrá qué hacer.

/// note | Nota

Si no lo sabes, revisa la sección [Async: *"¿Con prisa?"*](../../async.md#in-a-hurry) sobre `async` y `await` en la documentación.

///

## Integración con OpenAPI { #integrated-with-openapi }

# Concurrencia y async / await { #concurrency-and-async-await }

Detalles sobre la sintaxis `async def` para *path operation functions* y algunos antecedentes sobre el código asíncrono, la concurrencia y el paralelismo.

## ¿Con prisa? { #in-a-hurry }

<abbr title="too long; didn't read - demasiado largo; no lo leí"><strong>TL;DR:</strong></abbr>

Si estás usando paquetes de terceros que te dicen que los llames con `await`, como:

```Python

    ByteStreams.copy(inChannel, outChannel);
    assertThat(out.toByteArray()).isEqualTo(expected);
  }


  public void testCopyFileChannel() throws IOException {
    int chunkSize = 14407; // Random prime, unlikely to match any internal chunk size
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    WritableByteChannel outChannel = Channels.newChannel(out);

    File testFile = createTempFile();

También podrías definirla como una función normal en lugar de `async def`:

{* ../../docs_src/first_steps/tutorial003_py310.py hl[7] *}

/// note | Nota

Si no sabes la diferencia, Revisa la sección [Async: *"¿Tienes prisa?"*](../async.md#in-a-hurry).

///

### Paso 5: retorna el contenido { #step-5-return-the-content }

{* ../../docs_src/first_steps/tutorial001_py310.py hl[8] *}

    ByteStreams.copy(inChannel, outChannel);
    assertThat(out.toByteArray()).isEqualTo(expected);
  }


  public void testCopyFileChannel() throws IOException {
    int chunkSize = 14407; // Random prime, unlikely to match any internal chunk size
    ByteArrayOutputStream out = new ByteArrayOutputStream();
    WritableByteChannel outChannel = Channels.newChannel(out);

    File testFile = createTempFile();