List<E> expected = copyToList(array);
    expected.add(null);
    expectContents(expected);
  }

  /**
   * Returns the {@link Method} instance for {@link #testAdd_supportedNullPresent()} so that tests
   * can suppress it. See {@link CollectionAddTester#getAddNullSupportedMethod()} for details.
   */
  @J2ktIncompatible
  @GwtIncompatible // reflection

import org.jspecify.annotations.Nullable;

/**
 * A {@link SetMultimap} whose contents will never change, with many other important properties
 * detailed at {@link ImmutableCollection}.
 *
 * <p><b>Warning:</b> As in all {@link SetMultimap}s, do not modify either a key <i>or a value</i>
 * of a {@code ImmutableSetMultimap} in a way that affects its {@link Object#equals} behavior.
 * Undefined behavior and bugs will result.
 *

/// tip | Consejo

Si quieres **aprender FastAPI** de una manera estructurada (recomendado), ve y lee el [Tutorial - User Guide](../tutorial/index.md){.internal-link target=_blank} capítulo por capítulo.

 * extractor that iterates through the available extractors until one successfully
 * extracts the data.
 * </p>
 *
 * <p>
 * The class uses a {@link CrawlerContainer} for managing crawler components and
 * supports dependency injection via the {@link Resource} annotation.
 * </p>
 */
public class ExtractorFactory {

    /** Logger instance for this class */

Любая функция, с которой может работать:

* <a href="https://docs.python.org/3/library/contextlib.html#contextlib.contextmanager" class="external-link" target="_blank">`@contextlib.contextmanager`</a> или
* <a href="https://docs.python.org/3/library/contextlib.html#contextlib.asynccontextmanager" class="external-link" target="_blank">`@contextlib.asynccontextmanager`</a>

будет корректно использоваться в качестве **FastAPI**-зависимости.

 * iterators never throw {@link ConcurrentModificationException}.
 *
 * <p>If {@link #weakKeys} or {@link #weakValues} are requested, it is possible for a key or value
 * present in the map to be reclaimed by the garbage collector. Entries with reclaimed keys or
 * values may be removed from the map on each map modification or on occasional map accesses; such
 * entries may be counted by {@link Map#size}, but will never be visible to read or write

 *
 * <p>The {@link #rowKeySet} method returns a {@link SortedSet} and the {@link #rowMap} method
 * returns a {@link SortedMap}, instead of the {@link Set} and {@link Map} specified by the {@link
 * Table} interface.
 *
 * <p>The views returned by {@link #column}, {@link #columnKeySet()}, and {@link #columnMap()} have

Були навіть деякі зміни в самому Pydantic, щоб підтримати це.

Попередні скріншоти були зроблені у <a href="https://code.visualstudio.com" class="external-link" target="_blank">Visual Studio Code</a>.

Але ви отримаєте ту саму підтримку редактора у <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a> та більшість інших редакторів Python:

<img src="/img/tutorial/body/image05.png">

/// tip

На всех предыдущих скриншотах используется <a href="https://code.visualstudio.com" class="external-link" target="_blank">Visual Studio Code</a>.

Но у вас будет такая же поддержка и с <a href="https://www.jetbrains.com/pycharm/" class="external-link" target="_blank">PyCharm</a>, и вообще с любым редактором Python:

<img src="/img/tutorial/body/image05.png">

/// tip | Подсказка

**Typer**는 FastAPI의 동생입니다. 그리고 **FastAPI의 CLI**가 되기 위해 생겼습니다. ⌨️ 🚀

## 요구사항

FastAPI는 거인들의 어깨 위에 서 있습니다:

* 웹 부분을 위한 <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a>.
* 데이터 부분을 위한 <a href="https://docs.pydantic.dev/" class="external-link" target="_blank">Pydantic</a>.

## 설치