result.setCreatedTime(DfTypeUtil.toLong(source.get("createdTime")));
            result.setQueries(toStringArray(source.get("queries")));
            result.setTerm(DfTypeUtil.toString(source.get("term")));
            result.setUpdatedBy(DfTypeUtil.toString(source.get("updatedBy")));
            result.setUpdatedTime(DfTypeUtil.toLong(source.get("updatedTime")));

        byte[] third = impl.getBuffer(); // cache empty -> new with size 3

        assertSame(a, first, "First get should return first cached buffer");
        assertSame(c, second, "Second get should return second cached buffer");
        assertNotSame(d, third, "Third get should allocate a new buffer (not the dropped one)");
        assertEquals(3, third.length, "Allocated buffer length matches configured maximum size");

        assertEquals("value1", builder.initialSettings.get("key1"));

        // Test adding multiple settings
        builder.addInitialSettings("key2", 100);
        builder.addInitialSettings("key3", true);
        assertEquals(3, builder.initialSettings.size());
        assertEquals("value1", builder.initialSettings.get("key1"));
        assertEquals(100, builder.initialSettings.get("key2"));

      return;
    }
    assertNull(map.get(unmappedKey));
  }

  public void testGetNull() {
    Map<K, V> map = makeEitherMap();
    if (allowsNullKeys) {
      if (allowsNullValues) {
        // TODO: decide what to test here.
      } else {
        assertEquals(map.containsKey(null), map.get(null) != null);
      }
    } else {
      try {
        V unused = map.get(null);

{* ../../docs_src/first_steps/tutorial001.py h1[6] *}

`@app.get("/")` 告訴 **FastAPI** 那個函式負責處理請求：

* 路徑 `/`
* 使用 <abbr title="HTTP GET 方法"><code>get</code>操作</abbr>

/// info | `@decorator` Info

Python 中的 `@something` 語法被稱為「裝飾器」。

你把它放在一個函式上面。像一個漂亮的裝飾帽子（我猜這是術語的來源）。

一個「裝飾器」會對下面的函式做一些事情。

在這種情況下，這個裝飾器告訴 **FastAPI** 那個函式對應於 **路徑** `/` 和 **操作** `get`.

這就是「**路徑操作裝飾器**」。

///

你也可以使用其他的操作：

우리 역시 이제부터 메소드를 "**작동**"이라고 부를 것입니다.

#### *경로 작동 데코레이터* 정의

{* ../../docs_src/first_steps/tutorial001.py hl[6] *}

`@app.get("/")`은 **FastAPI**에게 바로 아래에 있는 함수가 다음으로 이동하는 요청을 처리한다는 것을 알려줍니다.

* 경로 `/`
* <abbr title="HTTP GET 메소드"><code>get</code> 작동</abbr> 사용

/// info | `@decorator` 정보

이 `@something` 문법은 파이썬에서 "데코레이터"라 부릅니다.

@Experimental
@Immutable
public interface SettingsBuilderRequest extends Request<ProtoSession> {

    /**
     * Gets the installation settings source.
     *
     * @return the installation settings source or {@code null} if none
     */
    @Nonnull
    Optional<Source> getInstallationSettingsSource();

    /**
     * Gets the project settings source.
     *
     * @return the project settings source or {@code null} if none
     */

    )
    try:
        payload = jwt.decode(token, SECRET_KEY, algorithms=[ALGORITHM])
        username: str = payload.get("sub")
        if username is None:
            raise credentials_exception
        scope: str = payload.get("scope", "")
        token_scopes = scope.split(" ")
        token_data = TokenData(scopes=token_scopes, username=username)

from typing import Annotated

from fastapi import FastAPI, Path, Query

app = FastAPI()


@app.get("/items/{item_id}")
async def read_items(
    *,
    item_id: Annotated[int, Path(title="The ID of the item to get", ge=0, le=1000)],
    q: str,
    size: Annotated[float, Query(gt=0, lt=10.5)],
):
    results = {"item_id": item_id}
    if q:
        results.update({"q": q})
    if size:
        results.update({"size": size})

    return client


def test_get_custom_response(client: TestClient):
    response = client.get("/items/")
    assert response.status_code == 200, response.text
    assert response.json() == [{"item_id": "Foo"}]


def test_openapi_schema(client: TestClient):
    response = client.get("/openapi.json")
    assert response.status_code == 200, response.text
    assert response.json() == {