response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/users/me": {
                    "get": {
                        "responses": {
                            "200": {

`summary`와 `description`을 추가할 수 있습니다:

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

## 독스트링으로 만든 설명 { #description-from-docstring }

설명은 보통 길어지고 여러 줄에 걸쳐있기 때문에, *경로 처리* 설명을 함수 <dfn title="문서화에 사용되는 함수 내부 첫 표현식의 여러 줄 문자열(어떤 변수에도 할당되지 않음)">독스트링</dfn>에 선언할 수 있으며, **FastAPI**는 그곳에서 이를 읽습니다.

독스트링에는 [Markdown](https://en.wikipedia.org/wiki/Markdown)을 작성할 수 있으며, (독스트링의 들여쓰기를 고려하여) 올바르게 해석되고 표시됩니다.

     */
    @Test
    void testToString() {
        // The actual toString() method uses super.toString(), so we mimic that for the check.
        // A direct string comparison might be brittle, so we check for the class name and brackets.
        String actualString = response.toString();
        assertTrue(actualString.startsWith("Trans2SetFileInformationResponse["),

/// tip | 豆知識

Pydantic には [`BeforeValidator`](https://docs.pydantic.dev/latest/concepts/validators/#field-before-validator) などもあります。 🤓

///

例えば、このカスタムバリデータは、<abbr title="International Standard Book Number - 国際標準図書番号">ISBN</abbr> の書籍番号なら item ID が `isbn-` で始まること、<abbr title="Internet Movie Database - インターネット・ムービー・データベース: 映画に関する情報を掲載する Web サイト">IMDB</abbr> の movie URL ID なら `imdb-` で始まることをチェックします:

## Owner

I, [@tiangolo](https://github.com/tiangolo), am the creator and owner of the FastAPI repository. 🤓

I normally give the final review to each PR before merging them. I make the final decisions on the project, I'm the [<abbr title="Benevolent Dictator For Life">BDFL</abbr>](https://en.wikipedia.org/wiki/Benevolent_dictator_for_life). 😅

## Team

There's a team of people that help manage and maintain the project. 😎

    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/users/me": {
                    "get": {
                        "responses": {
                            "200": {

And if you see the resulting OpenAPI (at `/openapi.json` in your API), you will see your extension as part of the specific *path operation* too:

```JSON hl_lines="22"
{
    "openapi": "3.1.0",
    "info": {
        "title": "FastAPI",
        "version": "0.1.0"
    },
    "paths": {
        "/items/": {
            "get": {
                "summary": "Read Items",
                "operationId": "read_items_items__get",

    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/users/me": {
                    "get": {
                        "responses": {
                            "200": {

    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/items/": {
                    "get": {
                        "responses": {
                            "200": {

    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == snapshot(
        {
            "openapi": "3.1.0",
            "info": {"title": "FastAPI", "version": "0.1.0"},
            "paths": {
                "/": {
                    "get": {
                        "summary": "Get Root",
                        "operationId": "get_root__get",