if (waiters == 0) {
      // unlink guard from activeGuards
      for (Guard p = activeGuards, pred = null; ; pred = p, p = p.next) {
        if (p == guard) {
          if (pred == null) {
            activeGuards = p.next;
          } else {
            pred.next = p.next;
          }
          p.next = null; // help GC
          break;
        }
      }
    }
  }

[project.scripts]
fastapi = "fastapi.cli:main"

[dependency-groups]
dev = [
    { include-group = "tests" },
    { include-group = "docs" },
    { include-group = "translations" },
    "playwright >=1.57.0",
    "prek >=0.2.22",
]
docs = [
    { include-group = "docs-tests" },
    "black >=25.1.0",
    "cairosvg >=2.8.2",
    # for MkDocs live reload
    "click==8.2.1",
    "griffe-typingdoc >=0.3.0",

      "gridPos": {
        "h": 5,
        "w": 6,
        "x": 0,
        "y": 0
      },
      "id": 21,
      "maxDataPoints": 100,
      "options": {
        "colorMode": "value",
        "graphMode": "area",
        "justifyMode": "auto",
        "orientation": "auto",
        "reduceOptions": {
          "calcs": [
            "mean"
          ],
          "fields": "",
          "values": false
        },

## Importar `File` { #import-file }

Importa `File` y `UploadFile` desde `fastapi`:

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[3] *}

## Definir Parámetros `File` { #define-file-parameters }

Crea parámetros de archivo de la misma manera que lo harías para `Body` o `Form`:

{* ../../docs_src/request_files/tutorial001_an_py310.py hl[9] *}

/// info | Información

`File` es una clase que hereda directamente de `Form`.

Style(t).position&&_e.getOrCreateInstance(t).hide()})),V(_e),b(_e);const ge={"*":["class","dir","id","lang","role",/^aria-[\w-]*$/i],a:["target","href","title","rel"],area:[],b:[],br:[],col:[],code:[],div:[],em:[],hr:[],h1:[],h2:[],h3:[],h4:[],h5:[],h6:[],i:[],img:["src","srcset","alt","title","width","height"],li:[],ol:[],p:[],pre:[],s:[],small:[],span:[],sub:[],sup:[],strong:[],u:[],ul:[]},fe=new Set(["background","cite","href","itemtype","longdesc","poster","src","xlink:href"]),me=/^(?!javasc...

        // Check that bytes before startIndex are unchanged
        for (int i = 0; i < startIndex; i++) {
            assertEquals((byte) (i & 0xFF), dst[i]);
        }

        // Check that bytes after written area are unchanged
        for (int i = startIndex + bytesWritten; i < dst.length; i++) {
            assertEquals((byte) (i & 0xFF), dst[i]);
        }
    }

    @Test

        // Data bytes at 0x20
        byte[] data = new byte[] { 1, 2, 3, 4, 5, 6, 7, 8 };
        System.arraycopy(data, 0, ctx, 0x20, data.length);

        // Update base to point to the context area
        int offsetFieldPos = base.length - 8; // position of CreateContextsOffset
        SMBUtil.writeInt4(contextStartOffsetFromHeader, base, offsetFieldPos);
        SMBUtil.writeInt4(ctx.length, base, offsetFieldPos + 4);

FastAPI se apoya en hombros de gigantes:

* [Starlette](https://www.starlette.dev/) para las partes web.
* [Pydantic](https://docs.pydantic.dev/) para las partes de datos.

## Instalación { #installation }

Crea y activa un [entorno virtual](https://fastapi.tiangolo.com/es/virtual-environments/) y luego instala FastAPI:

<div class="termy">

```console
$ pip install "fastapi[standard]"

---> 100%
```

</p>
<p align="center">
    Framework FastAPI, haute performance, facile à apprendre, rapide à coder, prêt pour la production
</p>
<p align="center">
<a href="https://github.com/fastapi/fastapi/actions?query=workflow%3ATest+event%3Apush+branch%3Amaster">

Algunas de estas soluciones también pueden ser open source u ofrecer niveles gratuitos, así que puedes probarlas sin un compromiso financiero. Hay otros generadores de SDK comerciales disponibles y se pueden encontrar en línea. 🤓

## Crea un SDK de TypeScript { #create-a-typescript-sdk }

Empecemos con una aplicación simple de FastAPI:

{* ../../docs_src/generate_clients/tutorial001_py310.py hl[7:9,12:13,16:17,21] *}