///

## OpenAPI 和 API 文档

如果你直接返回额外的状态码和响应，它们不会包含在 OpenAPI 方案（API 文档）中，因为 FastAPI 没办法预先知道你要返回什么。

{* ../../docs_src/dataclasses/tutorial001.py hl[1,7:12,19:20] *}

This is still supported thanks to **Pydantic**, as it has <a href="https://docs.pydantic.dev/latest/concepts/dataclasses/#use-of-stdlib-dataclasses-with-basemodel" class="external-link" target="_blank">internal support for `dataclasses`</a>.

{* ../../docs_src/dataclasses/tutorial001.py hl[1,7:12,19:20] *}

Das ist dank **Pydantic** ebenfalls möglich, da es <a href="https://pydantic-docs.helpmanual.io/usage/dataclasses/#use-of-stdlib-dataclasses-with-basemodel" class="external-link" target="_blank">`dataclasses` intern unterstützt</a>.

Starlette (e **FastAPI**) são baseados no <a href="https://anyio.readthedocs.io/en/stable/" class="external-link" target="_blank">AnyIO</a>, o que o torna compatível com ambos o <a href="https://docs.python.org/3/library/asyncio-task.html" class="external-link" target="_blank">asyncio</a> da biblioteca padrão do Python, e o <a href="https://trio.readthedocs.io/en/stable/" class="external-link" target="_blank">Trio</a>.

# 🏧 💂‍♂

## 🌖 ⚒

📤 ➕ ⚒ 🍵 💂‍♂ ↖️ ⚪️➡️ 🕐 📔 [🔰 - 👩‍💻 🦮: 💂‍♂](../../tutorial/security/index.md){.internal-link target=_blank}.

/// tip

⏭ 📄 **🚫 🎯 "🏧"**.

 & ⚫️ 💪 👈 👆 ⚙️ 💼, ⚗ 1️⃣ 👫.

///

## ✍ 🔰 🥇

⏭ 📄 🤔 👆 ⏪ ✍ 👑 [🔰 - 👩‍💻 🦮: 💂‍♂](../../tutorial/security/index.md){.internal-link target=_blank}.

import java.util.HashSet;
import java.util.List;
import java.util.Set;
import junit.framework.TestSuite;

/**
 * Concrete instantiation of {@link AbstractCollectionTestSuiteBuilder} for testing collections that
 * do not have a more specific tester like {@link ListTestSuiteBuilder} or {@link
 * SetTestSuiteBuilder}.
 *
 * @author Chris Povirk
 * @author Louis Wasserman
 */
@GwtIncompatible
public class CollectionTestSuiteBuilder<E>

    assertThrows(
        NullPointerException.class,
        () -> {
          Object unused = getSubjectGenerator().create(array);
        });
  }

  /**
   * Returns the {@link Method} instance for {@link #testCreateWithNull_unsupported()} so that tests
   * can suppress it with {@code FeatureSpecificTestSuiteBuilder.suppressing()} until <a
   * href="https://bugs.openjdk.org/browse/JDK-5045147">JDK-5045147</a> is fixed.

import com.google.common.collect.testing.MapInterfaceTest;
import java.util.Collection;
import java.util.Map;
import org.jspecify.annotations.NullMarked;

/**
 * Test {@link Multimap#asMap()} for an arbitrary multimap with {@link MapInterfaceTest}.
 *
 * @author George van den Driessche
 * @author Jared Levy
 */
@GwtCompatible
@NullMarked
public abstract class AbstractMultimapAsMapImplementsMapTest

  abstract ValueGraph<N, V> delegate();

  @Override
  public Set<N> nodes() {
    return delegate().nodes();
  }

  /**
   * Defer to {@link AbstractValueGraph#edges()} (based on {@link #successors(Object)}) for full
   * edges() implementation.
   */
  @Override
  protected long edgeCount() {
    return delegate().edges().size();
  }

  @Override

Thông tin này sẽ hữu ích khi bạn học về [Môi trường ảo](virtual-environments.md){.internal-link target=_blank}.

## Kết luận

Với những thông tin này, bạn có thể hiểu được **các biến môi trường là gì** và **cách sử dụng chúng trong Python**.

Bạn có thể đọc thêm về chúng tại <a href="https://en.wikipedia.org/wiki/Environment_variable" class="external-link" target="_blank">Wikipedia cho Biến môi trường</a>.