///

## Daten-<abbr title="Auch bekannt als: Serialisierung, Parsen, Marshalling">Konversion</abbr> { #data-conversion }

Wenn Sie dieses Beispiel ausführen und Ihren Browser unter <a href="http://127.0.0.1:8000/items/3" class="external-link" target="_blank">http://127.0.0.1:8000/items/3</a> öffnen, sehen Sie als Response:

```JSON
{"item_id":3}
```

/// check | Testen

Toda la conversión de datos, validación, documentación, etc. seguirá funcionando normalmente.

De esa manera, podemos declarar solo las diferencias entre los modelos (con `password` en texto plano, con `hashed_password` y sin contraseña):

{* ../../docs_src/extra_models/tutorial002_py310.py hl[7,13:14,17:18,21:22] *}

## `Union` o `anyOf` { #union-or-anyof }

	s.IsIdentRune = isIdentRune
	return &Tokenizer{
		s:    &s,
		base: src.NewFileBase(name, objabi.AbsFile(objabi.WorkingDir(), name, *flags.TrimPath)),
		line: 1,
		file: file,
	}
}

// We want center dot (·) and division slash (∕) to work as identifier characters.
func isIdentRune(ch rune, i int) bool {
	if unicode.IsLetter(ch) {
		return true
	}
	switch ch {
	case '_': // Underscore; traditional.
		return true

<p align="center">
  <a href="https://fastapi.tiangolo.com"><img src="https://fastapi.tiangolo.com/img/logo-margin/logo-teal.png" alt="FastAPI"></a>
</p>
<p align="center">
    Готовий до продакшину, високопродуктивний, простий у вивченні та швидкий для написання коду фреймворк
</p>
<p align="center">
<a href="https://github.com/fastapi/fastapi/actions?query=workflow%3ATest+event%3Apush+branch%3Amaster" target="_blank">

O mesmo aconteceria se você tivesse algo como uma <abbr title='Uma união entre vários tipos significa "qualquer um desses tipos".'>união</abbr> entre tipos diferentes onde um ou mais deles não são tipos Pydantic válidos, por exemplo, isso falharia 💥:

{* ../../docs_src/response_model/tutorial003_04_py310.py hl[8] *}

position: absolute;\n  top: 0;\n  bottom: 0;\n  z-index: 1;\n  // Use flex for alignment (1-3)\n  display: flex; // 1. allow flex styles\n  align-items: center; // 2. vertically center contents\n  justify-content: center; // 3. horizontally center contents\n  width: $carousel-control-width;\n  padding: 0;\n  color: $carousel-control-color;\n  text-align: center;\n  background: none;\n  border: 0;\n  opacity: $carousel-control-opacity;\n  @include transition($carousel-control-transition);\n\n  // Hover/focus...

						<div class="input-group-append">
							<span class="input-group-text">
								<em class="fa fa-lock fa-fw">
							</span>
						</div>
					</div>
					<div class="text-center">
						<button type="submit" name="changePassword"
							class="btn btn-primary btn-block"
							value="<la:message key="labels.login.update"/>">
							<em class="fa fa-pencil-alt">

						<div class="input-group-append">
							<span class="input-group-text">
								<i class="fa fa-lock fa-fw" aria-hidden="true"></i>
							</span>
						</div>
					</div>
					<div class="text-center">
						<button type="submit" name="login"
							class="btn btn-primary btn-block"
							value="<la:message key="labels.login"/>">
							<i class="fa fa-sign-in" aria-hidden="true"></i>

xmlns='http://www.w3.org/2000/svg' viewBox='0 0 8 8'%3e%3cpath fill='%23198754' d='M2.3 6.73.6 4.53c-.4-1.04.46-1.4 1.1-.8l1.1 1.4 3.4-3.8c.6-.63 1.6-.27 1.2.7l-4 4.6c-.43.5-.8.4-1.1.1z'/%3e%3c/svg%3e");padding-right:4.125rem;background-position:right .75rem center,center right 2.25rem;background-size:16px 12px,calc(.75em + .375rem) calc(.75em + .375rem)}.form-select.is-valid:focus,.was-validated .form-select:valid:focus{border-color:var(--bs-form-valid-border-color);box-shadow:0 0 0 .25rem rgba(var(--bs-succes...

						<div class="input-group-append">
							<span class="input-group-text">
								<i class="fa fa-lock fa-fw" aria-hidden="true"></i>
							</span>
						</div>
					</div>
					<div class="text-center">
						<button type="submit" name="changePassword"
							class="btn btn-primary btn-block"
							value="<la:message key="labels.login.update"/>">
							<i class="fa fa-pencil-alt" aria-hidden="true"></i>