### El archivo de configuración

Proveniente del ejemplo anterior, tu archivo `config.py` podría verse como:

{* ../../docs_src/settings/app02/config.py hl[10] *}

Nota que ahora no creamos una instance por defecto `settings = Settings()`.

### El archivo principal de la app

Por supuesto, usarías las mismas ideas que leíste en [Acerca de las versiones de FastAPI](versions.md){.internal-link target=_blank} para establecer los rangos de versiones.

Por ejemplo, tu `requirements.txt` podría verse así:

```
fastapi[standard]>=0.113.0,<0.114.0
pydantic>=2.7.0,<3.0.0
```

Y normalmente instalarías esas dependencias de los paquetes con `pip`, por ejemplo:

<div class="termy">

```console

    assertThat(body.contentLength()).isEqualTo(3)
    assertThat(bodyToHex(body)).isEqualTo("616263")
    assertThat(bodyToHex(body), "Retransmit body").isEqualTo("616263")
  }

  /** Common verbs used for apis such as GitHub, AWS, and Google Cloud.  */
  @Test
  fun crudVerbs() {
    val contentType = "application/json".toMediaType()
    val body = "{}".toRequestBody(contentType)

    val get =

Ele também não controla modelos aninhados muito bem. Então, se o corpo JSON na requisição for um objeto JSON que contém campos internos que contém objetos JSON aninhados, ele não consegue ser validado e documentado apropriadamente.

}
```

### 4.5 RDMA Provider Implementations

#### 4.5.1 DiSNI Provider (InfiniBand/RoCE)
```java
package jcifs.internal.smb2.rdma.disni;

import com.ibm.disni.*;
import com.ibm.disni.verbs.*;

public class DisniRdmaProvider implements RdmaProvider {
    private RdmaActiveEndpointGroup<DisniRdmaEndpoint> endpointGroup;
    private RdmaActiveEndpoint endpoint;
    private boolean initialized = false;

<div class="termy">

```console
$ uv pip install -r requirements.txt
---> 100%
```

</div>

////

/// details | `requirements.txt`

Un `requirements.txt` con algunos paquetes podría verse así:

```requirements.txt
fastapi[standard]==0.113.0
pydantic==2.8.0
```

///

## Ejecuta Tu Programa

  `She can't explain it,' said the Gryphon hastily.  `Go on with
the next verse.'

  `But about his toes?' the Mock Turtle persisted.  `How COULD
he turn them out with his nose, you know?'

  `It's the first position in dancing.' Alice said; but was
dreadfully puzzled by the whole thing, and longed to change the
subject.

  `Go on with the next verse,' the Gryphon repeated impatiently:
`it begins "I passed by his garden."'

pkg syscall (darwin-386), const VEOL ideal-int
pkg syscall (darwin-386), const VEOL2 = 2
pkg syscall (darwin-386), const VEOL2 ideal-int
pkg syscall (darwin-386), const VERASE = 3
pkg syscall (darwin-386), const VERASE ideal-int
pkg syscall (darwin-386), const VINTR = 8
pkg syscall (darwin-386), const VINTR ideal-int
pkg syscall (darwin-386), const VKILL = 5
pkg syscall (darwin-386), const VKILL ideal-int

"iekšpus", "nedz", "tik", "nevis", "turpretim", "jeb", "iekam", "iekām", "iekāms", "kolīdz", "līdzko", "tiklīdz", "jebšu", "tālab", "tāpēc", "nekā", "itin", "jā", "jau", "jel", "nē", "nezin", "tad", "tikai", "vis", "tak", "iekams", "vien", "# modal verbs", "būt  ", "biju ", "biji", "bija", "bijām", "bijāt", "esmu", "esi", "esam", "esat ", "būšu     ", "būsi", "būs", "būsim", "būsiet", "tikt", "tiku", "tiki", "tika", "tikām", "tikāt", "tieku", "tiec", "tiek", "tiekam", "tiekat", "tikšu", "tiks", "tiksim",...

"iekšpus", "nedz", "tik", "nevis", "turpretim", "jeb", "iekam", "iekām", "iekāms", "kolīdz", "līdzko", "tiklīdz", "jebšu", "tālab", "tāpēc", "nekā", "itin", "jā", "jau", "jel", "nē", "nezin", "tad", "tikai", "vis", "tak", "iekams", "vien", "# modal verbs", "būt  ", "biju ", "biji", "bija", "bijām", "bijāt", "esmu", "esi", "esam", "esat ", "būšu     ", "būsi", "būs", "būsim", "būsiet", "tikt", "tiku", "tiki", "tika", "tikām", "tikāt", "tieku", "tiec", "tiek", "tiekam", "tiekat", "tikšu", "tiks", "tiksim",...