レスポンスモデルには次のようにデフォルト値を設定できます:

{* ../../docs_src/response_model/tutorial004_py310.py hl[9,11:12] *}

* `description: Union[str, None] = None`（またはPython 3.10では `str | None = None`）はデフォルトが `None` です。
* `tax: float = 10.5` はデフォルトが `10.5` です。
* `tags: List[str] = []` はデフォルトが空のリスト `[]` です。

ただし、それらが実際には保存されていない場合、結果から省略したいことがあります。

例えば、NoSQLデータベースに多くのオプション属性を持つモデルがあるが、デフォルト値でいっぱいの非常に長いJSONレスポンスを送信したくない場合です。

import org.gradle.work.DisableCachingByDefault

@CompileStatic
@DisableCachingByDefault(because = "Only filters the input artifact")
abstract class FindGradleJars implements TransformAction<TransformParameters.None> {

    @PathSensitive(PathSensitivity.NAME_ONLY)
    @InputArtifact
    abstract Provider<FileSystemLocation> getArtifact()

    @Override
    void transform(TransformOutputs outputs) {

        return null;
    }

    @Override
    public String getExtension() {
        return extension;
    }

    @Override
    public String getLanguage() {
        return "none";
    }

    @Override
    public String getPackaging() {
        return packaging;
    }

    @Override
    @Deprecated
    public boolean isAddedToClasspath() {
        return false;
    }

from fastapi import FastAPI
from fastapi.testclient import TestClient
from inline_snapshot import snapshot
from pydantic import BaseModel

app = FastAPI()


class Product(BaseModel):
    name: str
    description: str = None  # type: ignore
    price: float


@app.get("/product")
async def create_item(product: Product):
    return product


client = TestClient(app)


def test_get_with_body():

**Raspberry Pi 2 and 3**      | [![Status](https://storage.googleapis.com/tensorflow-kokoro-build-badges/rpi23-py3.svg)](https://storage.googleapis.com/tensorflow-kokoro-build-badges/rpi23-py3.html)           | [Py3](https://storage.googleapis.com/tensorflow-nightly/tensorflow-1.10.0-cp34-none-linux_armv7l.whl)

    }

    /**
     * Adds {@code node} if it is not already present.
     *
     * <p><b>Nodes must be unique</b>, just as {@code Map} keys must be. They must also be non-null.
     *
     * @return this {@code Builder} object
     */
    @CanIgnoreReturnValue
    public ImmutableValueGraph.Builder<N, V> addNode(N node) {
      mutableValueGraph.addNode(node);
      return this;

memory: 128Mi ## List of buckets to be created after minio install ## buckets: # # Name of the bucket # - name: bucket1 # # Policy to be set on the # # bucket [none|download|upload|public] # policy: none # # Purge if bucket exists already # purge: false # # set versioning for # # bucket [true|false] # versioning: false # - name: bucket2 # policy: none # purge: false # versioning: true ## Additional Annotations for the Kubernetes Job makeBucketJob makeBucketJob: podAnnotations: annotations: securityContext:...

     * which contains the {@linkplain #getModel() model} in an XML form.
     * When a custom {@code org.apache.maven.api.spi.ModelParser} is used,
     * the path may point to a non XML file.
     * <p>
     * The POM path is also used to define the {@linkplain #getBasedir() base directory}
     * of the project.
     *
     * @return the path of the pom
     * @see #getBasedir()
     */

  operator fun plus(other: EventListener): EventListener {
    val left =
      when {
        this === NONE -> return other
        this is AggregateEventListener -> this.eventListeners
        else -> arrayOf(this)
      }
    val right =
      when {
        other === NONE -> return this
        other is AggregateEventListener -> other.eventListeners
        else -> arrayOf(other)
      }

///

/// check | Vérifications

OpenAPI spécifie que chaque *chemin d'accès* requiert une description de réponse.

Donc, si vous n'en fournissez pas, **FastAPI** en générera automatiquement une « Réponse réussie ».

///

<img src="/img/tutorial/path-operation-configuration/image03.png">

## Déprécier un *chemin d'accès* { #deprecate-a-path-operation }