```
 raise TemplateNotFound(template)
jinja2.exceptions.TemplateNotFound: partials/language/xx.html
```

Isso significa que o tema não suporta essa linguagem (nesse caso, com um código falso de duas letras `xx`).

Mas não se preocupe, você pode configurar o tema de linguagem para Inglês e então traduzir o conteúdo da documentação.

También podrías usarlo para generar código automáticamente, para los clientes que se comunican con tu API. Por ejemplo, frontend, móvil o aplicaciones de IoT.

## Repaso, paso a paso

### Paso 1: importa `FastAPI`

```Python hl_lines="1"
{!../../../docs_src/first_steps/tutorial001.py!}
```

`FastAPI` es una clase de Python que provee toda la funcionalidad para tu API.

---

Novamente, esses são detalhes muito técnicos que provavelmente possam ser úteis caso você esteja procurando por eles.

              }
            })
        .withFeatures(
            MapFeature.GENERAL_PURPOSE,
            MapFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
            MapFeature.RESTRICTS_KEYS,
            MapFeature.SUPPORTS_REMOVE,
            CollectionFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
            CollectionFeature.SERIALIZABLE,
            CollectionFeature.SUPPORTS_ITERATOR_REMOVE,

---

Si estás utilizando libraries de terceros que se comunican con algo (una base de datos, una API, el sistema de archivos, etc.) y no tienes soporte para `await` (este es el caso para la mayoría de las libraries de bases de datos), declara tus *path operation functions* de forma habitual, con solo `def`, de la siguiente manera:

```Python hl_lines="2"
@app.get('/')
def results():

              }
            })
        .withFeatures(
            MapFeature.GENERAL_PURPOSE,
            MapFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
            MapFeature.RESTRICTS_KEYS,
            MapFeature.SUPPORTS_REMOVE,
            CollectionFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
            CollectionFeature.SERIALIZABLE,
            CollectionFeature.SUPPORTS_ITERATOR_REMOVE,

        .withFeatures(
            SetFeature.GENERAL_PURPOSE,
            CollectionFeature.KNOWN_ORDER,
            CollectionFeature.SERIALIZABLE,
            CollectionFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
            CollectionFeature.RESTRICTS_ELEMENTS,
            CollectionSize.ANY)
        .suppressing(suppressForCheckedNavigableSet())
        .createTestSuite();
  }

        .named("HashSet")
        .withFeatures(
            SetFeature.GENERAL_PURPOSE,
            CollectionFeature.SERIALIZABLE,
            CollectionFeature.ALLOWS_NULL_VALUES,
            CollectionFeature.FAILS_FAST_ON_CONCURRENT_MODIFICATION,
            CollectionSize.ANY)
        .suppressing(suppressForHashSet())
        .createTestSuite();
  }

  public Test testsForLinkedHashSet() {

fs.s3a.committer.threads=2048 # Number of threads writing to MinIO
fs.s3a.connection.maximum=8192 # Maximum number of concurrent conns
fs.s3a.fast.upload.active.blocks=2048 # Number of parallel uploads
fs.s3a.fast.upload.buffer=disk # Use disk as the buffer for uploads
fs.s3a.fast.upload=true # Turn on fast upload mode
fs.s3a.max.total.tasks=2048 # Maximum number of parallel tasks
fs.s3a.multipart.size=512M # Size of each multipart chunk

## Version 5.0.0-alpha.4

_2022-02-01_

**This release introduces fast fallback to better support mixed IPv4+IPv6 networks.** Fast fallback
is what we're calling our implementation of Happy Eyeballs, [RFC 8305][rfc_8305]. With this
feature OkHttp will attempt both IPv6 and IPv4 connections concurrently, keeping whichever connects
first. Fast fallback gives IPv6 connections a 250 ms head start so IPv6 is preferred on networks