# 並行処理と async / await

*path operation 関数*のための `async def` に関する詳細と非同期 (asynchronous) コード、並行処理 (Concurrency)、そして、並列処理 (Parallelism) の背景について。

## 急いでいますか？

<abbr title="too long; didn't read (長すぎて読めない人のための要約という意味のスラング)"><strong>TL;DR:</strong></abbr>

次のような、`await` を使用して呼び出すべきサードパーティライブラリを使用している場合:

```Python
results = await some_library()
```

以下の様に `async def` を使用して*path operation 関数*を宣言します。

```Python hl_lines="2"
@app.get('/')

### DELETE operation in REST API

	}

	// Empty fi.VersionID indicates that versioning is either
	// suspended or disabled on this bucket. RenameData will replace
	// the 'null' version. We add a free-version to track its tiered
	// content for asynchronous deletion.
	//
	// Note: RestoreObject and HealObject requests don't end up replacing the
	// null version and therefore don't require the free-version to track
	// anything

- Added alpha support for asynchronous Pod preemption.

- Graduated the asynchronous preemption feature in the scheduler to beta. 

*   Updates `sqlite3` to `3.44.0` to keep in sync with master branch.

# Release 2.4.0

\## Major Features and Improvements

*   `tf.distribute` introduces experimental support for asynchronous training of
    models via the
    [`tf.distribute.experimental.ParameterServerStrategy`](https://www.tensorflow.org/api_docs/python/tf/distribute/experimental/ParameterServerStrategy)
    API. Please see the

* Update k8s.io/utils to allow for asynchronous process control ([#71047](https://github.com/kubernetes/kubernetes/pull/71047), [@hoegaarden](https://github.com/hoegaarden))

- The SchedulerAsyncAPICalls feature gate has been disabled to mitigate a bug where its interaction with asynchronous preemption in could degrade kube-scheduler performance, particularly under high kube-apiserver load. ([#134401](https://github.com/kubernetes/kubernetes/pull/134401), [@macsko](https://github.com/macsko)) [SIG Scheduling]

### Docs

* ✨ Add new tutorial for SQL databases with SQLModel. PR [#12285](https://github.com/fastapi/fastapi/pull/12285) by [@tiangolo](https://github.com/tiangolo).
* 📝 Add External Link: How to profile a FastAPI asynchronous request. PR [#12389](https://github.com/fastapi/fastapi/pull/12389) by [@brouberol](https://github.com/brouberol).