return nil
		}
		return err
	}
	if len(data) == 0 {
		// Seems to be empty create a new poolMeta object.
		return nil
	}
	if len(data) <= 4 {
		return fmt.Errorf("poolMeta: no data")
	}
	// Read header
	switch binary.LittleEndian.Uint16(data[0:2]) {
	case poolMetaFormat:
	default:
		return fmt.Errorf("poolMeta: unknown format: %d", binary.LittleEndian.Uint16(data[0:2]))
	}

# 並行処理と async / await { #concurrency-and-async-await }

*path operation 関数*のための `async def` 構文に関する詳細と、非同期コード、並行処理、並列処理の背景についてです。

## 急いでいますか？ { #in-a-hurry }

<abbr title="too long; didn't read - 長すぎて読まなかった"><strong>TL;DR:</strong></abbr>

次のように `await` で呼び出すよう指示されているサードパーティライブラリを使っているなら:

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

*path operation 関数*は次のように `async def` で宣言します:

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

		// Fan-out requires no copying, and must be carried from original source
		// https://en.wikipedia.org/wiki/Copy_protection so the incoming stream
		// is always going to be in-memory as we cannot re-read from what we
		// wrote to disk - since that amounts to "copying" from a "copy"
		// instead of "copying" from source, we need the stream to be seekable
		// to ensure that we can make fan-out calls concurrently.

        }
    }

    // --- Per-prompt-type parameter application ---

    /**
     * Applies per-prompt-type parameters to the request from configuration.
     * Reads temperature, max.tokens, and thinking.budget from config using
     * the pattern: {configPrefix}.{promptType}.{paramName}
     *
     * Subclasses can override to add provider-specific parameters (e.g. reasoning_effort, top_p).

    whole or in part contains or is derived from the Program or any part
    thereof, to be licensed as a whole at no charge to all third parties
    under the terms of this License.

    c) If the modified program normally reads commands interactively
    when run, you must cause it, when started running for such
    interactive use in the most ordinary way, to print or display an
    announcement including an appropriate copyright notice and a notice

        } else {
            // v1.0 endpoint for backward compatibility
            authUrl = getAuthority() + getTenant()
                    + "/oauth2/authorize?response_type=code&scope=directory.read.all&response_mode=form_post&redirect_uri="
                    + URLEncoder.encode(getReplyUrl(request), Constants.UTF_8_CHARSET) + "&client_id=" + getClientId()

# 동시성과 async / await { #concurrency-and-async-await }

*경로 처리 함수*에서의 `async def` 문법에 대한 세부사항과 비동기 코드, 동시성 및 병렬성에 대한 배경

## 바쁘신가요? { #in-a-hurry }

<abbr title="too long; didn't read - 너무 길어서 읽지 않음"><strong>TL;DR:</strong></abbr>

다음과 같이 `await`를 사용해 호출하라고 안내하는 제3자 라이브러리를 사용하는 경우:

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

다음처럼 *경로 처리 함수*를 `async def`를 사용해 선언하십시오:

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

    - [Container Images](#container-images-6)
  - [Changelog since v1.33.0](#changelog-since-v1330)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes)
    - [(No, really, you MUST read this before you upgrade)](#no-really-you-must-read-this-before-you-upgrade)
  - [Changes by Kind](#changes-by-kind-6)
    - [Deprecation](#deprecation)
    - [API Change](#api-change)
    - [Feature](#feature-4)
    - [Failing Test](#failing-test)

プロジェクトの作業が終了したら、その仮想環境を**無効化**できます。

<div class="termy">

```console
$ deactivate
```

</div>

これにより、 `python` コマンドを実行しても、そのプロジェクト用（のパッケージがインストールされた）仮想環境から `python` プログラムを呼び出そうとはしなくなります。

## 作業準備完了 { #ready-to-work }

これで、プロジェクトの作業を始める準備が整いました。



/// tip | 豆知識

上記の内容を理解したいですか？

もしそうなら、以下を読み進めてください。👇🤓

///

## なぜ仮想環境？ { #why-virtual-environments }

pkg io, func NopCloser(Reader) ReadCloser
pkg io, func ReadAll(Reader) ([]uint8, error)
pkg io, type ReadSeekCloser interface { Close, Read, Seek }
pkg io, type ReadSeekCloser interface, Close() error
pkg io, type ReadSeekCloser interface, Read([]uint8) (int, error)
pkg io, type ReadSeekCloser interface, Seek(int64, int) (int64, error)
pkg io, var Discard Writer
pkg io/fs, const ModeAppend = 1073741824