* to avoid the extra class for the lambda (and maybe more for memoizingSupplier itself) and the
     * indirection.
     *
     * One thing to *avoid* is a change to make each Logger user use memoizingSupplier directly:
     * That may introduce an extra class for each lambda (currently a dozen).
     */
    Logger local = logger;
    if (local != null) {
      return local;
    }
    synchronized (lock) {
      local = logger;

 * required but is fulfilled by all current implementations.
 *
 * @author Louis Wasserman
 */
@GwtCompatible
@Ignore("test runners must not instantiate and run this directly, only via suites we build")
// @Ignore affects the Android test runner, which respects JUnit 4 annotations on JUnit 3 tests.
@SuppressWarnings("JUnit4ClassUsedInJUnit3")

    @Deprecated
    private boolean addedToClasspath;

    /**
     * Default ctor for Plexus compatibility, as many plugins have artifact handlers declared in legacy Plexus XML.
     * Do not use directly!
     *
     * @deprecated This ctor is present only for Plexus XML defined component compatibility, do not use it.
     */
    @Deprecated
    public DefaultArtifactHandler() {
        this.type = null;
    }

import java.util.Collections;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import org.jspecify.annotations.Nullable;

/**
 * An implementation of {@link NetworkConnections} for undirected networks with parallel edges.
 *
 * @author James Sexton
 * @param <N> Node parameter type
 * @param <E> Edge parameter type
 */
final class UndirectedMultiNetworkConnections<N, E>

**FastAPI**将使用这个临时响应来提取头部（也包括cookies和状态码），并将它们放入包含你返回的值的最终响应中，该响应由任何`response_model`过滤。

你也可以在依赖项中声明`Response`参数，并在其中设置头部（和cookies）。

## 直接返回 `Response`

你也可以在直接返回`Response`时添加头部。

按照[直接返回响应](response-directly.md){.internal-link target=_blank}中所述创建响应，并将头部作为附加参数传递：

{* ../../docs_src/response_headers/tutorial001.py hl[10:12] *}


/// note | 技术细节

First, copy the public key block below into a new file called `gradle_pubkey.asc`, then import it with this command:

```bash
gpg --import gradle_pubkey.asc
```

Alternatively, you can fetch the key directly from a key server:

```bash
gpg --keyserver hkps://keys.openpgp.org --recv-keys 1BD97A6A154E7810EE0BC832E2F38302C8075E3D
```

### Verifying signatures

    private SmbTransport transport;

    @BeforeEach
    void setUp() {
        MockitoAnnotations.openMocks(this);
        // Setup transport fields that are accessed directly
        transport.tconHostName = "testHost";
        // Setup session.transport field (accessed directly in SmbTree)
        session.transport = transport;
        // Setup session to return transport via method call
        when(session.transport()).thenReturn(transport);

}
```

#### Unpacking a `dict` { #unpacking-a-dict }

If we take a `dict` like `user_dict` and pass it to a function (or class) with `**user_dict`, Python will "unpack" it. It will pass the keys and values of the `user_dict` directly as key-value arguments.

So, continuing with the `user_dict` from above, writing:

```Python
UserInDB(**user_dict)
```

would result in something equivalent to:

```Python
UserInDB(

또한 의존관계에서 `Response` 매개변수를 선언하고, 해당 의존성에서 쿠키(및 헤더)를 설정할 수도 있습니다.

## `Response`를 직접 반환하기

코드에서 `Response`를 직접 반환할 때도 쿠키를 생성할 수 있습니다.

이를 위해 [Response를 직접 반환하기](response-directly.md){.internal-link target=_blank}에서 설명한 대로 응답을 생성할 수 있습니다.

그런 다음 쿠키를 설정하고 반환하면 됩니다:
{* ../../docs_src/response_directly/tutorial002.py hl[1,18] *}
/// tip

}.direct-chat-olive .right>.direct-chat-text::after,.direct-chat-olive .right>.direct-chat-text::before{border-left-color:#3d9970}.direct-chat-lime .right>.direct-chat-text{background-color:#01ff70;border-color:#01ff70;color:#1f2d3d}.direct-chat-lime .right>.direct-chat-text::after,.direct-chat-lime .right>.direct-chat-text::before{border-left-color:#01ff70}.direct-chat-fuchsia .right>.direct-chat-text{background-color:#f012be;border-color:#f012be;color:#fff}.direct-chat-fuchsia .right>.direct-c...