</div>

### Modèle pour la sortie { #model-for-output }

Mais si vous utilisez le même modèle en sortie, comme ici :

{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py hl[19] *}

... alors, comme `description` a une valeur par défaut, si vous ne retournez rien pour ce champ, il aura tout de même cette **valeur par défaut**.

Aber FastAPI unterstützt auf die gleiche Weise auch die Verwendung von [`dataclasses`](https://docs.python.org/3/library/dataclasses.html):

{* ../../docs_src/dataclasses_/tutorial001_py310.py hl[1,6:11,18:19] *}

Das ist dank **Pydantic** ebenfalls möglich, da es [„`dataclasses` intern unterstützt“](https://docs.pydantic.dev/latest/concepts/dataclasses/#use-of-stdlib-dataclasses-with-basemodel).

.Values.affinity }} affinity: {{ toYaml . | indent 8 }} {{- end }} {{- with .Values.tolerations }} tolerations: {{ toYaml . | indent 8 }} {{- end }} {{- if and (gt $replicas 1) (ge .Capabilities.KubeVersion.Major "1") (ge .Capabilities.KubeVersion.Minor "19") }} {{- with .Values.topologySpreadConstr }} topologySpreadConstr: {{ toYaml . | indent 8 }} {{- end }} {{- end }} volumes: - name: minio-user secret: secretName: {{ template "minio.secretName" . }} {{- if .Values.extraSecret }} - name: extra-secret...

.Values.affinity }} affinity: {{ toYaml . | indent 8 }} {{- end }} {{- with .Values.tolerations }} tolerations: {{ toYaml . | indent 8 }} {{- end }} {{- if and (gt $replicas 1) (ge .Capabilities.KubeVersion.Major "1") (ge .Capabilities.KubeVersion.Minor "19") }} {{- with .Values.topologySpreadConstr }} topologySpreadConstr: {{ toYaml . | indent 8 }} {{- end }} {{- end }} volumes: - name: minio-user secret: secretName: {{ template "minio.secretName" . }} {{- if .Values.extraSecret }} - name: extra-secret...

.Values.affinity }} affinity: {{ toYaml . | indent 8 }} {{- end }} {{- with .Values.tolerations }} tolerations: {{ toYaml . | indent 8 }} {{- end }} {{- if and (gt $replicas 1) (ge .Capabilities.KubeVersion.Major "1") (ge .Capabilities.KubeVersion.Minor "19") }} {{- with .Values.topologySpreadConstr }} topologySpreadConstr: {{ toYaml . | indent 8 }} {{- end }} {{- end }} volumes: - name: minio-user secret: secretName: {{ template "minio.secretName" . }} {{- if .Values.extraSecret }} - name: extra-secret...

.Values.affinity }} affinity: {{ toYaml . | indent 8 }} {{- end }} {{- with .Values.tolerations }} tolerations: {{ toYaml . | indent 8 }} {{- end }} {{- if and (gt $replicas 1) (ge .Capabilities.KubeVersion.Major "1") (ge .Capabilities.KubeVersion.Minor "19") }} {{- with .Values.topologySpreadConstr }} topologySpreadConstr: {{ toYaml . | indent 8 }} {{- end }} {{- end }} volumes: - name: minio-user secret: secretName: {{ template "minio.secretName" . }} {{- if .Values.extraSecret }} - name: extra-secret...

.Values.affinity }} affinity: {{- toYaml . | nindent 8 }} {{- end }} {{- with .Values.tolerations }} tolerations: {{- toYaml . | nindent 8 }} {{- end }} {{- if and (gt $replicas 1) (ge .Capabilities.KubeVersion.Major "1") (ge .Capabilities.KubeVersion.Minor "19") }} {{- with .Values.topologySpreadConstr }} topologySpreadConstr: {{- toYaml . | nindent 8 }} {{- end }} {{- end }} volumes: - name: minio-user secret: secretName: {{ template "minio.secretName" . }} {{- if .Values.extraSecret }} - name: extra-secret...

하지만 FastAPI는 [`dataclasses`](https://docs.python.org/3/library/dataclasses.html)도 같은 방식으로 사용하는 것을 지원합니다:

{* ../../docs_src/dataclasses_/tutorial001_py310.py hl[1,6:11,18:19] *}

이는 **Pydantic** 덕분에 여전히 지원되는데, Pydantic이 [`dataclasses`에 대한 내부 지원](https://docs.pydantic.dev/latest/concepts/dataclasses/#use-of-stdlib-dataclasses-with-basemodel)을 제공하기 때문입니다.

</div>

### Modelo para Salida { #model-for-output }

Pero si usas el mismo modelo como salida, como aquí:

{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py hl[19] *}

...entonces, porque `description` tiene un valor por defecto, si **no devuelves nada** para ese campo, aún tendrá ese **valor por defecto**.

### Modelo para Datos de Response de Salida { #model-for-output-response-data }

</div>

### Modelo para Saída { #model-for-output }

Mas se você usar o mesmo modelo como saída, como aqui:

{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py hl[19] *}

... então, como `description` tem um valor padrão, se você **não retornar nada** para esse campo, ele ainda terá o **valor padrão**.

### Modelo para Dados de Resposta de Saída { #model-for-output-response-data }