* equality for both keys and values, unlike {@code ForwardingMap}.
 *
 * <p>The {@code standard} methods and the collection views they return are not guaranteed to be
 * thread-safe, even when all of the methods that they depend on are thread-safe.
 *
 * @author Mike Bostock
 * @author Louis Wasserman
 * @since 2.0
 */
@GwtCompatible
/*
 * We provide and encourage use of ForwardingNavigableSet over this class, but we still provide this

            if (VersionProperties.getElasticsearch().equals(distribution.getVersion())) {
                // non-external project, so depend on local build
                return new ProjectBasedDistributionDependency(
                    config -> projectDependency(project, distributionProjectPath(distribution), config)
                );
            }

   * whether nulls were to be permitted or forbidden, but presumably the eventual fix will be to
   * permit them, as it seems more likely that code would depend on that behavior than on the other.
   * Thus, we say the bug is in set(), which fails to support null.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection
  public static Method getSetNullSupportedMethod() {

 * comparator is not consistent with {@code equals}.
 *
 * <p>The {@code standard} methods are not guaranteed to be thread-safe, even when all of the
 * methods that they depend on are thread-safe.
 *
 * @author Mike Bostock
 * @author Louis Wasserman
 * @since 2.0
 */
@GwtCompatible
public abstract class ForwardingMapEntry<K extends @Nullable Object, V extends @Nullable Object>

Avoid writing the so-called `PolyNull` or `ParametricNull` methods (where nullability of the result depends on the nullability of the type argument).

   * {@code co.uk}, {@code google.invalid}, or {@code blogspot.com}.
   *
   * <p>This method can be used to determine whether it will probably be possible to set cookies on
   * the domain, though even that depends on individual browsers' implementations of cookie
   * controls. See <a href="http://www.ietf.org/rfc/rfc2109.txt">RFC 2109</a> for details.
   *
   * @since 6.0
   */
  public boolean isUnderPublicSuffix() {

namespace tensorflow {
class Device;
class DeviceMgr;
class ServerInterface;
}  // namespace tensorflow

// Internal structures used by the C API. These are likely to change and should
// not be depended on.

struct TF_SessionOptions {
  tensorflow::SessionOptions options;
};

struct TF_DeprecatedSession {
  tensorflow::Session* session;
};

struct TF_Library {
  void* lib_handle;

            getMockRequest().addHeader("X-Roles", System.currentTimeMillis() / 1000 + "\nrole3,role4");

            Set<String> roleSet = roleQueryHelper.build(SearchRequestType.SEARCH);
            // The role set size depends on configuration and implementation
            assertTrue(roleSet.size() >= 0);
        } catch (Exception e) {
            // Expected due to missing dependencies in test environment
            assertTrue(true);

            **extra,
        )


@dataclass(frozen=True)
class Depends:
    dependency: Callable[..., Any] | None = None
    use_cache: bool = True
    scope: Literal["function", "request"] | None = None


@dataclass(frozen=True)
class Security(Depends):

///

## 提前退出与 `scope` { #early-exit-and-scope }

通常，带有 `yield` 的依赖的退出代码会在响应发送给客户端**之后**执行。

但如果你知道在从 *路径操作函数* 返回之后不再需要使用该依赖，你可以使用 `Depends(scope="function")` 告诉 FastAPI：应当在 *路径操作函数* 返回后、但在**响应发送之前**关闭该依赖。

{* ../../docs_src/dependencies/tutorial008e_an_py310.py hl[12,16] *}

`Depends()` 接收一个 `scope` 参数，可为：

* `"function"`：在处理请求的 *路径操作函数* 之前启动依赖，在 *路径操作函数* 结束后结束依赖，但在响应发送给客户端**之前**。因此，依赖函数将围绕这个*路径操作函数*执行。