*
     * Instead, we'll encode the path to the file in the description data field, as a link.  This is
     * useful regardless of this renderer's needs, since now there will be a link embedded in the report
     * to quickly open the changes file.  By then we can also regex that path out of the description
     * in order to create a changes {@link File} for further use in this class.
     *

):
    item = {"item_id": item_id, "owner_id": user_id}
    if q:
        item.update({"q": q})
    if not short:
        item.update(
            {"description": "This is an amazing item that has a long description"}
        )

        override fun describeTo(description: Description) {
          description.appendText(platform)
        }

        override fun matches(item: Any?): Boolean = getPlatformSystemProperty() == platform
      }

    fun fromMajor(version: Int): Matcher<PlatformVersion> =
      object : TypeSafeMatcher<PlatformVersion>() {
        override fun describeTo(description: Description) {

                "responses": {
                    "200": {
                        "description": "Successful Response",
                        "content": {"application/json": {"schema": {}}},
                    },
                    "422": {
                        "description": "Validation Error",
                        "content": {
                            "application/json": {

                    },
                    "responses": {
                        "200": {
                            "description": "Successful Response",
                            "content": {"application/json": {"schema": {}}},
                        },
                        "422": {
                            "description": "Validation Error",
                            "content": {
                                "application/json": {

{* ../../docs_src/path_operation_configuration/tutorial002.py hl[17,22,27] *}

OpenAPI 概图会自动添加标签，供 API 文档接口使用：

<img src="/img/tutorial/path-operation-configuration/image01.png">

## `summary` 和 `description` 参数

路径装饰器还支持 `summary` 和 `description` 这两个参数：

{* ../../docs_src/path_operation_configuration/tutorial003.py hl[20:21] *}

## 文档字符串（`docstring`）

			Code:           "InvalidBucketState",
			Description:    "An Object Lock configuration is present on this bucket, versioning cannot be suspended.",
			HTTPStatusCode: http.StatusBadRequest,
		}, r.URL)
		return
	}
	if rc, _ := getReplicationConfig(ctx, bucket); rc != nil && v.Suspended() {
		writeErrorResponse(ctx, w, APIError{
			Code:           "InvalidBucketState",

app = FastAPI()


def magic_data_reader(raw_body: bytes):
    return {
        "size": len(raw_body),
        "content": {
            "name": "Maaaagic",
            "price": 42,
            "description": "Just kiddin', no magic here. ✨",
        },
    }


@app.post(
    "/items/",
    openapi_extra={
        "requestBody": {
            "content": {
                "application/json": {

class Image(BaseModel):
    url: HttpUrl
    name: str


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float | None = None
    tags: set[str] = set()
    images: list[Image] | None = None


class Offer(BaseModel):
    name: str
    description: str | None = None
    price: float
    items: list[Item]


@app.post("/offers/")

この場合、**FastAPI** は以下のようなボディを期待します:

```JSON hl_lines="2"
{
    "item": {
        "name": "Foo",
        "description": "The pretender",
        "price": 42.0,
        "tax": 3.2
    }
}
```

以下の代わりに:

```JSON
{
    "name": "Foo",
    "description": "The pretender",
    "price": 42.0,
    "tax": 3.2
}
```

## まとめ