```Python
with open("./somefile.txt") as f:
    contents = f.read()
    print(contents)
```

내부적으로 `open("./somefile.txt")` 는 "컨텍스트 관리자(Context Manager)"라고 불리는 객체를 생성합니다.

`with` 블록이 끝나면, 예외가 발생했더라도 파일을 닫도록 보장합니다.

`yield`가 있는 의존성을 생성하면 **FastAPI**는 내부적으로 이를 위한 컨텍스트 매니저를 생성하고 다른 관련 도구들과 결합합니다.

### `yield`를 사용하는 의존성에서 컨텍스트 관리자 사용하기

/// warning | 경고

    /** The time manager for handling time-related operations. */
    @Resource
    private TimeManager timeManager;

    /** The async manager for handling asynchronous operations. */
    @Resource
    private AsyncManager asyncManager;

    /** The session manager for handling user sessions. */
    @Resource
    private SessionManager sessionManager;

    }

    /**
     * Get directory lease manager from tree handle
     */
    private static DirectoryLeaseManager getDirectoryLeaseManager(SmbTreeHandleImpl th) {
        try {
            // For now, return null since we need to integrate with the session properly
            // This will be implemented when the session integration is complete
            log.debug("Directory lease manager integration not yet complete");

v1.26.14](https://console.cloud.google.com/gcr/images/k8s-artifacts-prod/us/kube-controller-manager) | [amd64](https://console.cloud.google.com/gcr/images/k8s-artifacts-prod/us/kube-controller-manager-amd64), [arm](https://console.cloud.google.com/gcr/images/k8s-artifacts-prod/us/kube-controller-manager-arm), [arm64](https://console.cloud.google.com/gcr/images/k8s-artifacts-prod/us/kube-controller-manager-arm64), [ppc64le](https://console.cloud.google.com/gcr/images/k8s-artifacts-prod/us/kube-co...

     */
    private static class TestHandleReconnector extends HandleReconnector {
        private final boolean shouldSucceed;

        public TestHandleReconnector(PersistentHandleManager manager, boolean shouldSucceed) {
            super(manager, 2, 50);
            this.shouldSucceed = shouldSucceed;
        }

        @Override
        protected boolean performReconnection(HandleInfo info) throws Exception {

import org.codehaus.plexus.logging.Logger;
import org.eclipse.aether.ConfigurationProperties;
import org.eclipse.aether.util.ConfigUtils;

// TODO remove the update check manager
// TODO separate into retriever and publisher
// TODO remove hardcoding of checksum logic

/**
 * Manages <a href="https://maven.apache.org/wagon">Wagon</a> related operations in Maven.
 */
@Named
@Singleton
@Deprecated

    t: Throwable?,
  ) {
    if (level == WARN) {
      Log.w(Tag, message, t)
    } else {
      Log.i(Tag, message, t)
    }
  }

  /**
   * A trust manager for Android applications that customize the trust manager.
   *
   * This class exploits knowledge of Android implementation details. This class is potentially
   * much faster to initialize than [BasicTrustRootIndex] because it doesn't need to load and

     * whether the DependencyCoordinates is used in dependency management, in which case it means the scope is not
     * explicitly managed by this managed dependency, or as a real dependency, in which case, the scope
     * will default to {@link #COMPILE}.
     */
    UNDEFINED("", false),

    /**
     * Compile only.
     */

     * </ul>
     * Where details may include:
     * <ul>
     *   <li>Version management information (if the version was managed from a different version)</li>
     *   <li>Scope management information (if the scope was managed from a different scope)</li>
     *   <li>Scope updates (if the scope was changed during resolution)</li>

        }).createPageNumberList());

        return userList;
    }

    /**
     * Retrieves a user by their unique identifier.
     * Loads the user through the authentication manager for complete user data.
     *
     * @param id the unique identifier of the user
     * @return an OptionalEntity containing the user if found
     */
    public OptionalEntity<User> getUser(final String id) {