### Step 5: return the content

```Python hl_lines="8"
{!../../../docs_src/first_steps/tutorial001.py!}
```

You can return a `dict`, `list`, singular values as `str`, `int`, etc.

You can also return Pydantic models (you'll see more about that later).

    `Optional[str]` の`Optional` はFastAPIでは使用されていません（FastAPIは`str`の部分のみ使用します）。しかし、`Optional[str]` はエディタがコードのエラーを見つけるのを助けてくれます。

## Pydanticを使わない方法

Und jetzt hat dieses neue `examples`-Feld Vorrang vor dem alten (und benutzerdefinierten) `example`-Feld, im Singular, das jetzt deprecated ist.

Dieses neue `examples`-Feld in JSON Schema ist **nur eine `list`e** von Beispielen, kein Dict mit zusätzlichen Metadaten wie an den anderen Stellen in OpenAPI (oben beschrieben).

!!! info

		joinFieldName := strings.Title(relation.FieldSchema.Name) + relField.Name

		if _, ok := ownFieldsMap[joinFieldName]; ok {
			if field.Name != relation.FieldSchema.Name {
				joinFieldName = inflection.Singular(field.Name) + relField.Name
			} else {
				joinFieldName += "Reference"
			}
		}

		if len(joinReferences) > idx {
			joinFieldName = strings.Title(joinReferences[idx])
		}

spec:
  group: extensions.istio.io
  names:
    categories:
    - istio-io
    - extensions-istio-io
    kind: WasmPlugin
    listKind: WasmPluginList
    plural: wasmplugins
    singular: wasmplugin
  scope: Namespaced
  versions:
  - additionalPrinterColumns:
    - description: 'CreationTimestamp is a timestamp representing the server time

### <abbr title="Geltungsbereich">`scope`</abbr>

Ferner sagt die Spezifikation, dass der Client ein weiteres Formularfeld "`scope`" („Geltungsbereich“) senden kann.

Der Name des Formularfelds lautet `scope` (im Singular), tatsächlich handelt es sich jedoch um einen langen String mit durch Leerzeichen getrennten „Scopes“.

Jeder „Scope“ ist nur ein String (ohne Leerzeichen).

### `scope`

The spec also says that the client can send another form field "`scope`".

The form field name is `scope` (in singular), but it is actually a long string with "scopes" separated by spaces.

Each "scope" is just a string (without spaces).

They are normally used to declare specific security permissions, for example:

message APIResource {
  // name is the plural name of the resource.
  optional string name = 1;

  // singularName is the singular name of the resource.  This allows clients to handle plural and singular opaquely.
  // The singularName is more correct for reporting status on a single item and both singular and plural are allowed
  // from the kubectl CLI interface.
  optional string singularName = 6;

apiextensions.k8s.io/v1 kind: CustomResourceDefini metadata: name: istiooperators.install.istio.io labels: release: istio spec: conversion: strategy: None group: install.istio.io names: kind: IstioOperator listKind: IstioOperatorList plural: istiooperators singular: istiooperator shortNames: - iop - io scope: Namespaced versions: - additionalPrinterCol: - description: Istio control plane revision jsonPath: .spec.revision name: Revision type: string - description: IOP current state jsonPath: .status.status name:...

/tests/ "Kotlin Build Infrastructure"

/third-party/ "Kotlin Compiler Core"

/wasm/ "Kotlin Wasm"

# Generated files (no review required)
*Generated.java "Kotlin" "Kotlin IDE Analysis Core"

# Singular files
/.gitattributes "Kotlin Build Infrastructure"
/ChangeLog.md "Kotlin Release"
/CODE_OF_CONDUCT.md "Kotlin Build Infrastructure"
/ReadMe.md "Kotlin Build Infrastructure"
/SECURITY.md "Kotlin Build Infrastructure"