private final char[] table;
  private final boolean containsZero;
  private final long filter;

  private SmallCharMatcher(char[] table, long filter, boolean containsZero, String description) {
    super(description);
    this.table = table;
    this.filter = filter;
    this.containsZero = containsZero;
  }

  private static final int C1 = 0xcc9e2d51;
  private static final int C2 = 0x1b873593;

  /*

## 문서화 요약 및 설명 - OpenAPI { #documentation-summary-and-description-openapi }

*경로 처리*에 요약과 설명을 추가하고, 문서 UI에 표시하려면 [튜토리얼 - 경로 처리 구성 - 요약 및 설명](../tutorial/path-operation-configuration.md#summary-and-description) 문서를 읽어보세요.

## 문서화 응답 설명 - OpenAPI { #documentation-response-description-openapi }

문서 UI에 표시되는 응답의 설명을 정의하려면 [튜토리얼 - 경로 처리 구성 - 응답 설명](../tutorial/path-operation-configuration.md#response-description) 문서를 읽어보세요.

      int negatedCharacters = DISTINCT_CHARS - totalCharacters;
      String suffix = ".negate()";
      String description = toString();
      String negatedDescription =
          description.endsWith(suffix)
              ? description.substring(0, description.length() - suffix.length())
              : description + suffix;
      return new NegatedFastMatcher(
          precomputedPositive(negatedCharacters, table, negatedDescription)) {

    @Nested
    @DisplayName("Strategy Description")
    class StrategyDescriptionTests {

        @Test
        @DisplayName("should provide meaningful description")
        void shouldProvideMeaningfulDescription() {
            String description = strategy.getDescription();

            assertNotNull(description, "Description should not be null");

                It will be included in the generated OpenAPI (e.g. visible at `/docs`).
                """
            ),
        ] = None,
        description: Annotated[
            str | None,
            Doc(
                """
                Security scheme description.

                It will be included in the generated OpenAPI (e.g. visible at `/docs`).
                """
            ),
        ] = None,

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

app = FastAPI()

oid = OpenIdConnect(
    openIdConnectUrl="/openid", description="OpenIdConnect security scheme"
)


class User(BaseModel):
    username: str


def get_current_user(oauth_header: str = Security(oid)):
    user = User(username=oauth_header)
    return user

**FastAPI** 對此的支援方式與使用普通字串相同：

{* ../../docs_src/path_operation_configuration/tutorial002b_py310.py hl[1,8:10,13,18] *}

## 摘要與描述 { #summary-and-description }

你可以加入 `summary` 與 `description`：

{* ../../docs_src/path_operation_configuration/tutorial003_py310.py hl[17:18] *}

## 從 docstring 取得描述 { #description-from-docstring }

由於描述常常較長、跨越多行，你可以在函式的 <dfn title="用於文件的多行字串，作為函式內的第一個運算式（不賦值給任何變數）">文件字串（docstring）</dfn> 中宣告「路徑操作」的描述，**FastAPI** 會從那裡讀取。

            """
        ),
    ] = None,
    description: Annotated[
        str | None,
        Doc(
            """
            Human-readable description.
            """
        ),
    ] = None,
    gt: Annotated[
        float | None,
        Doc(
            """

app = FastAPI()


class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float = 10.5
    tags: list[str] = []


items = {
    "foo": {"name": "Foo", "price": 50.2},
    "bar": {"name": "Bar", "description": "The bartenders", "price": 62, "tax": 20.2},
    "baz": {"name": "Baz", "description": None, "price": 50.2, "tax": 10.5, "tags": []},
}

### 입력용 모델 { #model-for-input }

이 모델을 다음처럼 입력으로 사용하면:

{* ../../docs_src/separate_openapi_schemas/tutorial001_py310.py ln[1:15] hl[14] *}

...`description` 필드는 **필수가 아닙니다**. `None`이라는 기본값이 있기 때문입니다.

### 문서에서의 입력 모델 { #input-model-in-docs }

문서에서 `description` 필드에 **빨간 별표**가 없고, 필수로 표시되지 않는 것을 확인할 수 있습니다:

<div class="screenshot">
<img src="/img/tutorial/separate-openapi-schemas/image01.png">
</div>