interface{ ~int | ~string }  // type parameter only: implements comparable (int, string types are strictly comparable)
interface{ comparable }      // type parameter only: implements comparable (comparable implements itself)
interface{ ~int | ~[]byte }  // type parameter only: does not implement comparable (slices are not comparable)
interface{ ~struct{ any } }  // type parameter only: does not implement comparable (field any is not strictly comparable)
</pre>

	deleteUserIdentity(ctx context.Context, name string, userType IAMUserType) error
	deleteGroupInfo(ctx context.Context, name string) error
}

// iamStorageWatcher is implemented by `IAMStorageAPI` implementers that
// additionally support watching storage for changes.
type iamStorageWatcher interface {
	watch(ctx context.Context, keyPath string) <-chan iamWatchEvent
}

Al considerar estos conceptos, podrás **evaluar y diseñar** la mejor manera de implementar **tus propias APIs**.

En los próximos capítulos, te daré más **recetas concretas** para implementar aplicaciones de FastAPI.

        response.onResponseEnd(ShutdownConnection)
        response.removeHeader("Content-Length")
      }

      override fun newRequestBody(body: String): RequestBody = throw TestAbortedException("END_OF_STREAM not implemented for requests")
    }, ;

    abstract fun setBody(
      response: MockResponse.Builder,
      content: Buffer?,
      chunkSize: Int,
    )

* La API verifica ese `username` y `password`, y responde con un "token" (no hemos implementado nada de esto aún).
    * Un "token" es solo un string con algún contenido que podemos usar luego para verificar a este usuario.
    * Normalmente, un token se establece para que expire después de algún tiempo.

- Added a `runtime.ApplyConfiguration` interface implemented by all generated apply configuration types. ([#132194](https://github.com/kubernetes/kubernetes/pull/132194), [@alvaroaleman](https://github.com/alvaroaleman)) [SIG API Machinery and Instrumentation]

- Kubeadm: enhance certs check-expiration to show the expiration info of related CAs ([#83932](https://github.com/kubernetes/kubernetes/pull/83932), [@SataQiu](https://github.com/SataQiu))
- Kubeadm: implemented structured output of 'kubeadm token list' in JSON, YAML, Go template and JsonPath formats ([#78764](https://github.com/kubernetes/kubernetes/pull/78764), [@bart0sh](https://github.com/bart0sh))

Este ejemplo no implementa el callback en sí (eso podría ser solo una línea de código), solo la parte de documentación.

/// tip | Consejo

El callback real es solo un request HTTP.

* Implemented `kubeadm upgrade plan` for checking whether you can upgrade your cluster to a newer version ([#48899](https://github.com/kubernetes/kubernetes/pull/48899), [@luxas](https://github.com/luxas))
    * Implemented `kubeadm upgrade apply` for upgrading your cluster from one version to an other

- Added regions ap-northeast-3 and eu-west-3 to the list of well known AWS regions. ([#70252](https://github.com/kubernetes/kubernetes/pull/70252), [@nckturner](https://github.com/nckturner))
- kubeadm: Implemented preflight check to ensure that number of CPUs ([#70048](https://github.com/kubernetes/kubernetes/pull/70048), [@bart0sh](https://github.com/bart0sh))