```mermaid
flowchart LR
    stone(philosophers-stone) -->|requires| harry-1[harry v1]
```

Então, em algum momento depois, você cria outro projeto chamado `prisoner-of-azkaban`, e esse projeto também depende de `harry`, mas esse projeto precisa do **`harry` versão `3`**.

```mermaid
flowchart LR

```mermaid
flowchart LR
    stone(philosophers-stone) -->|requires| harry-1[harry v1]
```

Luego, en algún momento después, creas otro proyecto llamado `prisoner-of-azkaban`, y este proyecto también depende de `harry`, pero este proyecto necesita **`harry` versión `3`**.

```mermaid
flowchart LR

  private SampleElements<K> keys() {
    return new SampleElements<>(k0(), k1(), k2(), k3(), k4());
  }

  private SampleElements<V> values() {
    return new SampleElements<>(v0(), v1(), v2(), v3(), v4());
  }

  @MapFeature.Require(SUPPORTS_PUT)
  public void testReplaceAllRotate() {
    getMap()
        .replaceAll(
            (K k, V v) -> {

Ahora sabes que cuando las necesites puedes usarlas en **FastAPI**.

### Pydantic v1 `regex` en lugar de `pattern` { #pydantic-v1-regex-instead-of-pattern }

Antes de la versión 2 de Pydantic y antes de FastAPI 0.100.0, el parámetro se llamaba `regex` en lugar de `pattern`, pero ahora está en desuso.

Todavía podrías ver algo de código que lo usa:

//// tab | Pydantic v1

pkg p1, var ByteFunc func(uint8) int32
pkg p1, var ChecksumError error
pkg p1, var SIPtr *SI
pkg p1, var SIPtr2 *SI
pkg p1, var SIVal SI
pkg p1, var StrConv string
pkg p1, var V string
pkg p1, var V1 uint64
pkg p1, var V2 p2.Twoer
pkg p1, var VError //deprecated
pkg p1, var VError Error
pkg p1, var X I
pkg p1, var X0 int64

 [kotlin_1_3_71]: https://github.com/JetBrains/kotlin/releases/tag/v1.3.71
 [kotlin_1_4_10]: https://github.com/JetBrains/kotlin/releases/tag/v1.4.10
 [kotlin_1_6_20]: https://github.com/JetBrains/kotlin/releases/tag/v1.6.20
 [kotlin_1_8_21]: https://github.com/JetBrains/kotlin/releases/tag/v1.8.21
 [legacy_interceptor]: https://gist.github.com/swankjesse/80135f4e03629527e723ab3bcf64be0b

```mermaid
flowchart LR
    stone(philosophers-stone) -->|requires| harry-1[harry v1]
```

Then, at some point later, you create another project called `prisoner-of-azkaban`, and this project also depends on `harry`, but this project needs **`harry` version `3`**.

```mermaid
flowchart LR

<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image05.png">
</div>

    version: Literal["1", "auto"] = "auto",
) -> ModelField:
    if annotation_is_pydantic_v1(type_):
        raise PydanticV1NotSupportedError(
            "pydantic.v1 models are no longer supported by FastAPI."
            f" Please update the response model {type_!r}."
        )
    class_validators = class_validators or {}

    json_schema = field_mapping[(field, override_mode or field.mode)]
    if "$ref" not in json_schema:
        # TODO remove when deprecating Pydantic v1
        # Ref: https://github.com/pydantic/pydantic/blob/d61792cc42c80b13b23e3ffa74bc37ec7c77f7d1/pydantic/schema.py#L207
        json_schema["title"] = field.field_info.title or field_alias.title().replace(
            "_", " "