`str` を継承することで、APIドキュメントは値が `文字列` でなければいけないことを知り、正確にレンダリングできるようになります。

そして、固定値のクラス属性を作ります。すると、その値が使用可能な値となります:

{* ../../docs_src/path_params/tutorial005.py hl[1,6,7,8,9] *}

/// info | 情報

<a href="https://docs.python.org/3/library/enum.html" class="external-link" target="_blank">Enumerations (もしくは、enums)はPython 3.4以降で利用できます</a>。

///

/// tip | 豆知識

    --executor-memory 512m \
    --executor-cores 1 \
    examples/jars/spark-examples*.jar 10
```

The job should produce an output as shown below. Note the value of pi in the output.

```
17/03/22 23:21:10 INFO DAGScheduler: Job 0 finished: reduce at SparkPi.scala:38, took 1.302805 s
Pi is roughly 3.1445191445191445
```

            throw new CrawlingAccessException("Failed to create S3 client: endpoint=" + endpoint, e);
        }

        isInit = true;
        if (logger.isInfoEnabled()) {
            logger.info("S3 client initialized successfully: endpoint={}, region={}", endpoint, region);
        }
    }

    /**
     * Checks if a bucket exists in the object storage.
     * @param name the name of the bucket to check

        systemProperties.putAll(context.systemPropertiesOverrides);

        // ----------------------------------------------------------------------
        // Properties containing info about the currently running version of Maven
        // These override any corresponding properties set on the command line
        // ----------------------------------------------------------------------

                    Files.deleteIfExists(target);
                    Files.createLink(target, source);
                } catch (UnsupportedOperationException | IOException suppressed) {
                    LOGGER.info("Copying {} to project local repository.", artifact);
                    try {
                        Files.copy(
                                source,
                                target,

my_user: User = User(id=3, name="John Doe", joined="2018-07-19")

second_user_data = {
    "id": 4,
    "name": "Mary",
    "joined": "2018-11-30",
}

my_second_user: User = User(**second_user_data)
```

/// info | 정보

`**second_user_data`가 뜻하는 것:

`second_user_data` 딕셔너리의 키와 값을 키-값 인자로서 바로 넘겨줍니다. 다음과 동일합니다: `User(id=4, name="Mary", joined="2018-11-30")`

///

### 편집기 지원

<img src="/img/async/concurrent-burgers/concurrent-burgers-06.png" class="illustration">

你和戀人享用這頓大餐，整個過程十分開心✨

<img src="/img/async/concurrent-burgers/concurrent-burgers-07.png" class="illustration">

/// info

漂亮的插畫來自 <a href="https://www.instagram.com/ketrinadrawsalot" class="external-link" target="_blank">Ketrina Thompson</a>. 🎨

///

---

想像你是故事中的電腦或程式 🤖。

<img src="/img/async/concurrent-burgers/concurrent-burgers-06.png" class="illustration">

你们享用了汉堡，整个过程都很开心。✨

<img src="/img/async/concurrent-burgers/concurrent-burgers-07.png" class="illustration">

/// info

漂亮的插画来自 <a href="https://www.instagram.com/ketrinadrawsalot" class="external-link" target="_blank">Ketrina Thompson</a>. 🎨

///

---

在那个故事里，假设你是计算机程序 🤖 。

<div class="termy">

```console
$ pip install -r requirements.txt
---> 100%
Successfully installed fastapi pydantic
```

</div>

/// info | Informação

Há outros formatos e ferramentas para definir e instalar dependências de pacotes.

///

### Crie o código do **FastAPI** { #create-the-fastapi-code }

* Crie um diretório `app` e entre nele.

    /** The key of the configuration. e.g. 100 */
    String PAGE_CRAWLING_INFO_PARAM_MAX_FETCH_SIZE = "page.crawling.info.param.max.fetch.size";

    /** The key of the configuration. e.g. 1000 */
    String PAGE_CRAWLING_INFO_MAX_FETCH_SIZE = "page.crawling.info.max.fetch.size";

    /** The key of the configuration. e.g. 100 */
    String PAGE_DATA_CONFIG_MAX_FETCH_SIZE = "page.data.config.max.fetch.size";