* once after loading completes). Much internal cache management is performed at the segment
   * granularity. For example, access queues and write queues are kept per segment when they are
   * required by the selected eviction algorithm. As such, when writing unit tests it is not

/// warning | Advertencia

Esto es, más o menos, una idea "avanzada".

Si apenas estás comenzando con **FastAPI**, podrías querer omitirlo por ahora.

///

En Python, puedes crear Context Managers [creando una clase con dos métodos: `__enter__()` y `__exit__()`](https://docs.python.org/3/reference/datamodel.html#context-managers).

	}
	fmt.Fprintf(os.Stderr, "%s:%d: %s", in.File(), in.Line(), fmt.Sprintln(args...))
	os.Exit(1)
}

// expectText is like Error but adds "got XXX" where XXX is a quoted representation of the most recent token.
func (in *Input) expectText(args ...any) {
	in.Error(append(args, "; got", strconv.Quote(in.Stack.Text()))...)
}

### Criando o `Settings` apenas uma vez com `lru_cache` { #creating-the-settings-only-once-with-lru-cache }

Ler um arquivo do disco normalmente é uma operação custosa (lenta), então você provavelmente vai querer fazer isso apenas uma vez e depois reutilizar o mesmo objeto de configurações, em vez de lê-lo a cada requisição.

Mas toda vez que fizermos:

```Python
Settings()
```

        }
      }
    }
  }

  internal class CallReference(
    referent: RealCall,
    /**
     * Captures the stack trace at the time the Call is executed or enqueued. This is helpful for
     * identifying the origin of connection leaks.
     */
    val callStackTrace: Any?,
  ) : WeakReference<RealCall>(referent)

  private companion object {

    threadPool.shutdown();
    threadPool.awaitTermination(300, SECONDS);

    // Since we're not doing any more cache operations, and the cache only expires/evicts when doing
    // other operations, the cache and the removal queue won't change from this point on.

    // Verify that each received removal notification was valid
    for (RemovalNotification<String, String> notification : removalListener) {

    threadPool.shutdown();
    threadPool.awaitTermination(300, SECONDS);

    // Since we're not doing any more cache operations, and the cache only expires/evicts when doing
    // other operations, the cache and the removal queue won't change from this point on.

    // Verify that each received removal notification was valid
    for (RemovalNotification<String, String> notification : removalListener) {

	// 1. Check that svc account appears in listing
	c.assertSvcAccAppearsInListing(ctx, userAdmClient, accessKey, cr.AccessKey)

	// 2. Check that svc account info can be queried
	c.assertSvcAccInfoQueryable(ctx, userAdmClient, accessKey, cr.AccessKey, false)

	// 3. Check S3 access
	c.assertSvcAccS3Access(ctx, s, cr, bucket)

	// 5. Check that service account can be deleted.

// one of the source or destination devices to be CPU (i.e., for the source or
// destination tensor to be placed in host memory).
// If async execution is enabled, the copy may be enqueued and the call will
// return "non-ready" handle. Else, this function returns after the copy has
// been done.
TF_CAPI_EXPORT extern TFE_TensorHandle* TFE_TensorHandleCopyToDevice(

	buf, err := yaml.Marshal(req)
	if err != nil {
		batchLogIf(ctx, err)
		writeErrorResponseJSON(ctx, w, toAPIError(ctx, err), r.URL)
		return
	}

	w.Write(buf)
}

// StartBatchJob queue a new job for execution
func (a adminAPIHandlers) StartBatchJob(w http.ResponseWriter, r *http.Request) {
	ctx := r.Context()

	objectAPI, creds := validateAdminReq(ctx, w, r, policy.StartBatchJobAction)