return nil
	}

	if cancel := r.cancel; cancel != nil {
		// cancel != nil only on pool leaders
		r.cancel = nil
		cancel()
	}
	return nil
}

// for rebalance trace support
type rebalanceMetrics struct{}

var globalRebalanceMetrics rebalanceMetrics

//go:generate stringer -type=rebalanceMetric -trimprefix=rebalanceMetric $GOFILE
type rebalanceMetric uint8

const (

}

// checkODirectDiskSupport asks the disk to write some data
// with O_DIRECT support, return an error if any and return
// errUnsupportedDisk if there is no O_DIRECT support
func (s *xlStorage) checkODirectDiskSupport(fsType string) error {
	if !disk.ODirectPlatform {
		return errUnsupportedDisk
	}

	// We know XFS already supports O_DIRECT no need to check.
	if fsType == "XFS" {
		return nil
	}

    testRequestMethod("GET", true)
  }

  @Test
  fun requestMethodHeadIsNotCached() {
    // We could support this but choose not to for implementation simplicity
    testRequestMethod("HEAD", false)
  }

  @Test
  fun requestMethodPostIsNotCached() {
    // We could support this but choose not to for implementation simplicity
    testRequestMethod("POST", false)
  }

  @Test

   * lesser. For example, {@code [] < [1.0f] < [1.0f, 2.0f] < [2.0f]}.
   *
   * <p>The returned comparator is inconsistent with {@link Object#equals(Object)} (since arrays
   * support only identity equality), but it is consistent with {@link Arrays#equals(float[],
   * float[])}.
   *
   * @since 2.0
   */
  public static Comparator<float[]> lexicographicalComparator() {

   * lesser. For example, {@code [] < [1.0f] < [1.0f, 2.0f] < [2.0f]}.
   *
   * <p>The returned comparator is inconsistent with {@link Object#equals(Object)} (since arrays
   * support only identity equality), but it is consistent with {@link Arrays#equals(float[],
   * float[])}.
   *
   * @since 2.0
   */
  public static Comparator<float[]> lexicographicalComparator() {

//
// This API is highly experimental, and in particular is expected to change when
// it starts supporting operations with attributes and when tf.function support
// is added.
TF_CAPI_EXPORT extern void TFE_RegisterCustomDevice(TFE_Context* ctx,
                                                    TFE_CustomDevice device,

		// style is necessary to provide paths other than C:/,
		// such as F:/, D:/ etc.
		//
		// Another additional benefit here is that this style also
		// supports providing \\host\share support as well.
		if runtime.GOOS == globalWindowsOSName {
			if filepath.VolumeName(u.Path[1:]) != "" {
				u.Path = u.Path[1:]
			}
		}

	} else {

 * has not actually been put in the {@code BloomFilter}.
 *
 * <p>Bloom filters are serializable. They also support a more compact serial representation via the
 * {@link #writeTo} and {@link #readFrom} methods. Both serialized forms will continue to be
 * supported by future versions of this library. However, serial forms generated by newer versions

...에서:

```Python
        ... "item_name": item.name ...
```

...으로:

```Python
        ... "item_price": item.price ...
```

...그러고 나서 여러분의 편집기가 속성과 타입을 알고 자동 완성하는지 보십시오:

![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)

더 많은 기능을 포함한 보다 완전한 예제의 경우, <a href="https://fastapi.tiangolo.com/tutorial/">튜토리얼 - 사용자 가이드</a>를 보십시오.

**스포일러 주의**: 튜토리얼 - 사용자 가이드는:

    Typically this would cause certain redirects to fail in debug and development configurations.


## Version 4.4.0

_2020-02-17_

 *  New: Support `canceled()` as an event that can be observed by `EventListener`. This should be
    useful for splitting out canceled calls in metrics.