// Verify that the object was created
        assertNotNull(pacString, "The PacUnicodeString object should not be null.");

        // Verify that the getters return the correct values
        assertEquals(length, pacString.getLength(), "The length should match the value provided in the constructor.");

constructor stubs" enabled\="true" id\="org.eclipse.jdt.ui.text.codetemplates.constructorbody" name\="constructorbody">${body_statement}</template><template autoinsert\="true" context\="getterbody_context" deleted\="false" description\="Code in created getters" enabled\="true" id\="org.eclipse.jdt.ui.text.codetemplates.getterbody" name\="getterbody">return ${field};</template><template autoinsert\="true" context\="setterbody_context" deleted\="false" description\="Code in created setters" enabled\="true"...

from pydantic import BaseModel

app = FastAPI()


class Item(BaseModel):
    name: str
    price: float | None = None


@app.api_route("/items/{item_id}", methods=["GET"])
def get_items(item_id: str):
    return {"item_id": item_id}


def get_not_decorated(item_id: str):
    return {"item_id": item_id}


app.add_api_route("/items-not-decorated/{item_id}", get_not_decorated)

@user_router.get("/")
def get_users():
    return [{"user_id": "u1"}, {"user_id": "u2"}]


@user_router.get("/{user_id}")
def get_user(user_id: str):
    return {"user_id": user_id}


@item_router.get("/")
def get_items(user_id: str | None = None):
    if user_id is None:
        return [{"item_id": "i1", "user_id": "u1"}, {"item_id": "i2", "user_id": "u2"}]
    else:
        return [{"item_id": "i2", "user_id": user_id}]

el","_interval","_activeElement","_isSliding","touchTimeout","_swipeHelper","_indicatorsElement","_addEventListeners","cycle","_slide","nextWhenVisible","hidden","_clearInterval","_updateInterval","setInterval","_maybeEnableCycle","to","items","_getItems","activeIndex","_getItemIndex","_getActive","order","defaultInterval","_keydown","_addTouchEventListeners","img","swipeConfig","_directionToOrder","endCallBack","clearTimeout","_setActiveIndicatorElement","activeIndicator","newActiveIndicator","...

{* ../../docs_src/generate_clients/tutorial004_py310.py *}

//// tab | Node.js

```Javascript
{!> ../../docs_src/generate_clients/tutorial004.js!}
```

////

这样，操作 ID 会从 `items-get_items` 之类的名字重命名为 `get_items`，从而让客户端生成器生成更简洁的方法名。

### 使用预处理后的 OpenAPI 生成 TypeScript 客户端 { #generate-a-typescript-client-with-the-preprocessed-openapi }

因为最终结果现在保存在 `openapi.json` 中，你需要更新输入位置：

```sh

     *
     * @param address the old IP address
     */
    public void addOldIPAddress(InetAddress address) {
        oldIPAddresses.add(new WitnessIPAddress(address));
    }

    // Getters and Setters

    /**
     * Gets the event type.
     *
     * @return the event type
     */
    public WitnessEventType getEventType() {
        return eventType;
    }

    /**

//// tab | Node.js

```Javascript
{!> ../../docs_src/generate_clients/tutorial004.js!}
```

////

После этого ID операций будут переименованы с чего‑то вроде `items-get_items` просто в `get_items`, и генератор клиента сможет создавать более простые имена методов.

### Генерация TypeScript‑клиента с предобработанным OpenAPI { #generate-a-typescript-client-with-the-preprocessed-openapi }

        Assertions.assertEquals(42L, info.getSize(), "size should match");
    }

    // --- Parameterized: edge and boundary values across getters ---
    @ParameterizedTest(name = "attributes={0}, c={1}, w={2}, a={3}, size={4}")
    @MethodSource("valueProvider")

{* ../../docs_src/generate_clients/tutorial004_py310.py *}

//// tab | Node.js

```Javascript
{!> ../../docs_src/generate_clients/tutorial004.js!}
```

////

如此一來，操作 ID 會從 `items-get_items` 之類的字串，變成單純的 `get_items`，讓用戶端產生器能產生更簡潔的方法名稱。

### 使用預處理後的 OpenAPI 產生 TypeScript 用戶端 { #generate-a-typescript-client-with-the-preprocessed-openapi }

由於最終結果現在是在 `openapi.json` 檔案中，你需要更新輸入位置：

```sh