Wir hatten diese Typannotation:

//// tab | Python 3.10+

```Python
q: str | None = None
```

////

//// tab | Python 3.9+

```Python
q: Union[str, None] = None
```

////

Was wir tun werden, ist, dies mit `Annotated` zu wrappen, sodass es zu:

//// tab | Python 3.10+

```Python
q: Annotated[str | None] = None
```

////

//// tab | Python 3.9+

```Python

比较特别的是，在 **Kubernetes** 环境中运行时，您通常**不需要**使用多个工作进程，而是**每个容器运行一个 Uvicorn 进程**。不过，我会在本章节的后续部分详细介绍这一点。

///

## 多个工作进程

您可以使用 `--workers` 命令行选项来启动多个工作进程：

//// tab | `fastapi`

如果您使用 `fastapi` 命令：

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> run --workers 4 <u style="text-decoration-style:solid">main.py</u>

然后，你将获得这个对象的所有编辑器支持。

下面的例子来自 Pydantic 官方文档：

//// tab | Python 3.10+

```Python
{!> ../../docs_src/python_types/tutorial011_py310.py!}
```

////

//// tab | Python 3.9+

```Python
{!> ../../docs_src/python_types/tutorial011_py39.py!}
```

////

//// tab | Python 3.8+

```Python
{!> ../../docs_src/python_types/tutorial011.py!}
```

	commandsTree := trie.NewTrie()

	// registerCommand registers a cli command.
	registerCommand := func(command cli.Command) {
		// avoid registering commands which are not being built (via
		// go:build tags)
		if command.Name == "" {
			return
		}
		commands = append(commands, command)
		commandsTree.Insert(command.Name)
	}

	findClosestCommands := func(command string) []string {

    vcsUrl = "https://github.com/gradle/gradle/tree/HEAD/platforms/core-configuration/kotlin-dsl-plugins"

    plugins.all {

        val plugin = this

        tags.addAll("Kotlin", "DSL")

        publishPluginsToTestRepository.configure {
            dependsOn("publish${plugin.name.capitalize()}PluginMarkerMavenPublicationToTestRepository")
        }

- Click `Create subproject` button at the bottom of the "Subprojects" region of [this page](https://builds.gradle.org/admin/editProject.html?projectId=Gradle&tab=projectGeneralTab)
  - Select `Manually`.
  - Give it a name. The name will be displayed on TeamCity web UI. We highly recommend it be capitalized from the branch name, i.e. `MyTestBranch`.

			}
		}
	}
}

func TestMarshalXML(t *testing.T) {
	// Validates if Versioning with no excluded prefixes omits
	// ExcludedPrefixes tags
	v := Versioning{
		Status: Enabled,
	}
	buf, err := xml.Marshal(v)
	if err != nil {
		t.Fatalf("Failed to marshal %v: %v", v, err)
	}

	str := string(buf)

///

## Несколько воркеров { #multiple-workers }

Можно запустить несколько воркеров с помощью опции командной строки `--workers`:

//// tab | `fastapi`

Если вы используете команду `fastapi`:

<div class="termy">

```console
$ <font color="#4E9A06">fastapi</font> run --workers 4 <u style="text-decoration-style:solid">main.py</u>

      for (double i = 0; i < 100; i += 20) {
        v =
            v.add(
                v.multiply(
                    BigInteger.valueOf(((Double) Math.abs(Math.sin(i) * 10.0)).longValue())));
      }
      return v;
    }
  }

  public enum ComparatorType {
    CHEAP {
      @Override
      public Comparator<Integer> get() {

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