if s == nil {
		return nil
	}
	if s.Start == nil && s.End == nil {
		// This parameter is optional, but when specified, it must not be empty.
		// Ref: https://docs.aws.amazon.com/AmazonS3/latest/API/API_SelectObjectContent.html#AmazonS3-SelectObjectContent-request-ScanRange
		return errors.New("ScanRange: No Start or End specified")
	}
	if s.Start == nil || s.End == nil {
		return nil
	}

Además de tipos singulares normales como `str`, `int`, `float`, etc., puedes usar tipos singulares más complejos que heredan de `str`.

Para ver todas las opciones que tienes, revisa el <a href="https://docs.pydantic.dev/latest/concepts/types/" class="external-link" target="_blank">Overview de Tipos de Pydantic</a>. Verás algunos ejemplos en el siguiente capítulo.

为此，请使用 Python 标准类型提示 <a href="https://docs.python.org/3/library/typing.html#typing.Union" class="external-link" target="_blank">`typing.Union`</a>：

/// note | 笔记

定义 <a href="https://docs.pydantic.dev/latest/concepts/types/#unions" class="external-link" target="_blank">`Union`</a> 类型时，要把详细的类型写在前面，然后是不太详细的类型。下例中，更详细的 `PlaneItem` 位于 `Union[PlaneItem，CarItem]` 中的 `CarItem` 之前。

///

Follow below steps to get started with MinIO monitoring using Prometheus.

### 1. Download Prometheus

[Download the latest release](https://prometheus.io/download) of Prometheus for your platform, then extract it

```sh
tar xvfz prometheus-*.tar.gz
cd prometheus-*
```

echo "Create bucket in source MinIO instance"
./mc mb minio1/test-bucket --insecure

# Load objects to source site
echo "Loading objects to source MinIO instance"
set -x
./mc cp /tmp/data/plainfile minio1/test-bucket --insecure
./mc cp /tmp/data/encrypted minio1/test-bucket/encrypted --enc-c "minio1/test-bucket/encrypted=${TEST_MINIO_ENC_KEY}" --insecure

</p>
<p align="center">
<a href="https://github.com/fastapi/fastapi/actions?query=workflow%3ATest+event%3Apush+branch%3Amaster" target="_blank">
    <img src="https://github.com/fastapi/fastapi/actions/workflows/test.yml/badge.svg?event=push&branch=master" alt="Test">
</a>
<a href="https://coverage-badge.samuelcolvin.workers.dev/redirect/fastapi/fastapi" target="_blank">

	}

	policyBuf, err := json.Marshal(sessionPolicy)
	if err != nil {
		return err
	}

	// https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRoleWithWebIdentity.html
	// https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html
	// The plain text that you use for both inline and managed session
	// policies shouldn't exceed maxSTSSessionPolicySize characters.

Starten Sie den Fess-Server und führen Sie den folgenden Befehl aus:

    $ mvn test -P integrationTests -Dtest.fess.url="http://localhost:8080" -Dtest.search_engine.url="http://localhost:9201"

Um einen einzelnen Testfall auszuführen, können Sie verwenden:

    $ mvn test -P integrationTests -Dtest.fess.url="http://localhost:8080" -Dtest.search_engine.url="http://localhost:9201" -Dtest=SearchApiTests

### In Ihre Sprache übersetzen

    $ mvn license:format

### 集成测试

启动 Fess 服务器并运行以下命令：

    $ mvn test -P integrationTests -Dtest.fess.url="http://localhost:8080" -Dtest.search_engine.url="http://localhost:9201"

要运行单个测试用例，您可以使用：

    $ mvn test -P integrationTests -Dtest.fess.url="http://localhost:8080" -Dtest.search_engine.url="http://localhost:9201" -Dtest=SearchApiTests

### 翻译为您的语言

Fess 是国际化软件。

## Технические детали { #technical-details }

Немного технических подробностей для любопытных умников. 🤓

Под капотом, в ASGI-технической спецификации, это часть <a href="https://asgi.readthedocs.io/en/latest/specs/lifespan.html" class="external-link" target="_blank">Протокола Lifespan</a>, и он определяет события `startup` и `shutdown`.

/// info | Информация