@Override
  public @Nullable K firstKey() {
    return sortedDelegate.firstKey();
  }

  @Override
  public @Nullable K lastKey() {
    return sortedDelegate.lastKey();
  }

  @Nullable K higher(K k) {
    Iterator<K> iterator = keySet().tailSet(k).iterator();
    while (iterator.hasNext()) {
      K tmp = iterator.next();
      if (comparator().compare(k, tmp) < 0) {
        return tmp;
      }
    }

  }

  // A random value that cannot be 0 and that is unsigned-less-than or equal
  // to the given dividend, so that we don't have half of our divisions being
  // trivial because the divisor is bigger than the dividend.
  // Using remainder here does not give us a uniform distribution but it should
  // not have a big impact on the measurement.
  private static long randomDivisor(long dividend) {

因此，你可以重複使用在其他地方已使用過的一般依賴（會回傳值），即使回傳值不會被使用，該依賴仍會被執行：

{* ../../docs_src/dependencies/tutorial006_an_py310.py hl[11,16] *}

## 一組路徑操作的依賴 { #dependencies-for-a-group-of-path-operations }

之後在閱讀如何組織較大的應用程式（[較大型應用程式——多個檔案](../../tutorial/bigger-applications.md)）時，你會學到如何為一組路徑操作宣告一個共同的 `dependencies` 參數。

## 全域依賴 { #global-dependencies }

| Maximum number of versions per object                                           | 10000 (can be configured to higher values but we do not recommend beyond 10000) |

## Пример { #example }

В качестве простого примера, давайте рассмотрим файловую структуру, схожую с описанной в [Большие приложения](../tutorial/bigger-applications.md) и [Тестирование](../tutorial/testing.md):

```
.
├── app
│   ├── __init__.py
│   ├── main.py
│   └── test_main.py
```

Файл `main.py`:

`TestClient`, [HTTPX](https://www.python-httpx.org) tabanlıdır ve neyse ki API'yi test etmek için HTTPX'i doğrudan kullanabiliriz.

## Örnek { #example }

Basit bir örnek için, [Daha Büyük Uygulamalar](../tutorial/bigger-applications.md) ve [Test Etme](../tutorial/testing.md) bölümlerinde anlatılana benzer bir dosya yapısı düşünelim:

```
.
├── app
│   ├── __init__.py
│   ├── main.py
│   └── test_main.py
```

>
> - [**AssumeRole**](https://github.com/minio/minio/blob/master/docs/sts/assume-role.md)
> - [**AD/LDAP**](https://github.com/minio/minio/blob/master/docs/sts/ldap.md)

     * These versions correspond to different levels of validation that can be applied
     * during model building, based on the POM schema version.
     * <p>
     * The validation levels are cumulative, with higher versions including all validations
     * from lower versions plus additional checks specific to that version.
     */
    enum Version {
        /**
         * Base validation level that applies to all POM versions.

   * @return the greatest value less than {@code value}, or {@code null} if {@code value} is {@code
   *     minValue()}
   */
  public abstract @Nullable C previous(C value);

  /**
   * Returns a signed value indicating how many nested invocations of {@link #next} (if positive) or
   * {@link #previous} (if negative) are needed to reach {@code end} starting from {@code start}.

    }

    @Override
    public @Nullable E ceiling(@ParametricNullness E e) {
      return getElementOrNull(multiset().tailMultiset(e, CLOSED).firstEntry());
    }

    @Override
    public @Nullable E higher(@ParametricNullness E e) {
      return getElementOrNull(multiset().tailMultiset(e, OPEN).firstEntry());
    }

    @Override
    public NavigableSet<E> descendingSet() {