* the rest not null -- and the test fails if no expected exception is thrown. {@code
 * NullPointerTester} uses best effort to pick non-null default values for many common JDK and Guava
 * types, and also for interfaces and public classes that have public parameter-less constructors.
 * When the non-null default value for a particular parameter type cannot be provided by {@code

    private final Map<TypeVariableKey, Type> mappings = new HashMap<>();

    /**
     * Returns type mappings using type parameters and type arguments found in the generic
     * superclass and the super interfaces of {@code contextClass}.
     */
    static ImmutableMap<TypeVariableKey, Type> getTypeMappings(Type contextType) {
      checkNotNull(contextType);

---

Los `APIRouter`s no están "montados", no están aislados del resto de la aplicación.

Esto se debe a que queremos incluir sus *path operations* en el esquema de OpenAPI y las interfaces de usuario.

Como no podemos simplemente aislarlos y "montarlos" independientemente del resto, se "clonan" las *path operations* (se vuelven a crear), no se incluyen directamente.

///

---

Os `APIRouter`s não são "montados", eles não são isolados do resto do aplicativo.

Isso ocorre porque queremos incluir suas *operações de rota* no esquema OpenAPI e nas interfaces de usuário.

Como não podemos simplesmente isolá-los e "montá-los" independentemente do resto, as *operações de rota* são "clonadas" (recriadas), não incluídas diretamente.

///

    * Generating **automatic errors** returned to the client when the data is invalid.
* **Document** the API using OpenAPI:
    * which is then used by the automatic interactive documentation user interfaces.

This might all sound abstract. Don't worry. You'll see all this in action in the [Tutorial - User Guide](tutorial/index.md){.internal-link target=_blank}.

		ctxt.MemLimit = memAvailable
	}

	if memAvailable < ctxt.MemLimit {
		ctxt.MemLimit = memAvailable
	}

	ctxt.FTP = ctx.StringSlice("ftp")
	ctxt.SFTP = ctx.StringSlice("sftp")
	ctxt.Interface = ctx.String("interface")
	ctxt.UserTimeout = ctx.Duration("conn-user-timeout")
	ctxt.SendBufSize = ctx.Int("send-buf-size")
	ctxt.RecvBufSize = ctx.Int("recv-buf-size")
	ctxt.IdleTimeout = ctx.Duration("idle-timeout")

And integrate standards-based user interface tools:

* <a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank">Swagger UI</a>
* <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank">ReDoc</a>

These two were chosen for being fairly popular and stable, but doing a quick search, you could find dozens of alternative user interfaces for OpenAPI (that you can use with **FastAPI**).

annotations, elaborations, or other modifications represent, as a whole, an original work of authorship. For the purposes of this License, Derivative Works shall not include works that remain separable from, or merely link (or bind by name) to the interfaces of, the Work and Derivative Works thereof. "Contribution" shall mean any work of authorship, including the original version of the Work and any modifications or additions to that Work or Derivative Works thereof, that is intentionally submitted...

///

## Declarar más metadatos { #declare-more-metadata }

Puedes agregar más información sobre el parámetro.

Esa información se incluirá en el OpenAPI generado y será utilizada por las interfaces de usuario de documentación y herramientas externas.

/// note | Nota

Ten en cuenta que diferentes herramientas podrían tener diferentes niveles de soporte de OpenAPI.

 * the rest not null -- and the test fails if no expected exception is thrown. {@code
 * NullPointerTester} uses best effort to pick non-null default values for many common JDK and Guava
 * types, and also for interfaces and public classes that have public parameter-less constructors.
 * When the non-null default value for a particular parameter type cannot be provided by {@code