return delegate.size();
  }

  @Override
  public boolean containsKey(@Nullable Object key) {
    return delegate.containsKey(key);
  }

  @Override
  public @Nullable V get(@Nullable Object key) {
    return delegate.get(key);
  }

  @Override
  public boolean equals(@Nullable Object object) {
    if (object == this) {
      return true;
    }
    if (object instanceof ImmutableEnumMap) {

    HashMultimap<String, Integer> multimap = HashMultimap.create();
    multimap.put("foo", 1);
    multimap.put("bar", 2);
    multimap.put("foo", 3);
    assertEquals(ImmutableSet.of(1, 3), multimap.get("foo"));
    assertEquals(2, multimap.expectedValuesPerKey);
  }

  public void testCreateFromMultimap() {
    HashMultimap<String, Integer> multimap = HashMultimap.create();
    multimap.put("foo", 1);

 *       ImmutableList.get} returns {@code E}, but that value is never {@code null}. (Accordingly,
 *       {@code ImmutableList} is declared to forbid {@code ImmutableList<@Nullable String>}.)
 *   <li>methods whose return type is a type variable but which can return {@code null} regardless
 *       of the type argument supplied by the user of the class: For example, {@code

    return finishToValueAndCloser(closingFuture).get();
  }

  @Override
  void assertFinallyFailsWithException(ClosingFuture<?> closingFuture) {
    assertThatFutureFailsWithException(closingFuture.statusFuture());
    ValueAndCloser<?> valueAndCloser = finishToValueAndCloser(closingFuture);
    try {
      valueAndCloser.get();
      fail();
    } catch (ExecutionException expected) {

        for (Artifact artifact : artifacts) {
            Object key = VersionsMetadata.getKey(artifact);
            if (processedVersions.get(key) == null) {
                VersionsMetadata versionsMetadata = versions.get(key);
                if (versionsMetadata == null) {
                    versionsMetadata = new VersionsMetadata(artifact, timestamp);
                    versions.put(key, versionsMetadata);

                        + "%sThis is not supported because it breaks running in parallel. Configure dedicated "
                        + "services for each project and use those instead.",
                    otherProject.get(),
                    this.project.getPath(),
                    serviceName,
                    path
                )
            );
        }
    }

* 대안가능한 사용자 인터페이스를 2개 포함한 자동 대화형 API 문서:
    * Swagger UI.
    * ReDoc.

---

이전 코드 예제로 돌아가서, **FastAPI**는 다음처럼 처리합니다:

* `GET` 및 `PUT` 요청에 `item_id`가 경로에 있는지 검증.
* `GET` 및 `PUT` 요청에 `item_id`가 `int` 타입인지 검증.
    * 그렇지 않다면 클라이언트는 유용하고 명확한 에러를 볼 수 있습니다.
* `GET` 요청에 `q`라는 선택적인 쿼리 매개변수가 있는지 검사(`http://127.0.0.1:8000/items/foo?q=somequery`처럼).
    * `q` 매개변수는 `= None`으로 선언되었기 때문에 선택사항입니다.

need it so that empty directory does not get deleted...

      return array;
    }
    Method emptyGenerate = EMPTY_GENERATORS.get(rawType);
    if (emptyGenerate != null) {
      if (emptyInstanceGenerated.containsKey(type.getType())) {
        // empty instance already generated
        if (emptyInstanceGenerated.get(type.getType()) == freshness.get()) {
          // same freshness, generate again.
          return invokeGeneratorMethod(emptyGenerate);

     */
    public UserRoleLoginException(final Class<? extends RootAction> actionClass) {
        this.actionClass = actionClass;
    }

    /**
     * Gets the action class associated with this exception.
     *
     * @return the action class that requires specific user roles
     */
    public Class<? extends RootAction> getActionClass() {
        return actionClass;
    }