* `summary`: Örnek için kısa açıklama.
* `description`: Markdown metni içerebilen uzun açıklama.
* `value`: Gösterilecek gerçek örnek (ör. bir `dict`).
* `externalValue`: `value`’a alternatif; örneğe işaret eden bir URL. Ancak bu, `value` kadar çok araç tarafından desteklenmiyor olabilir.

Şöyle kullanabilirsiniz:

{* ../../docs_src/schema_extra_example/tutorial005_an_py310.py hl[23:49] *}

但在我们上面的例子里，我们并不是直接使用，而是传递给 FastAPI 来供其使用。

`FastAPI` 的 `lifespan` 参数接受一个**异步上下文管理器**，所以我们可以把我们新定义的异步上下文管理器 `lifespan` 传给它。

{* ../../docs_src/events/tutorial003_py310.py hl[22] *}

## 替代事件（弃用） { #alternative-events-deprecated }

/// warning | 警告

配置**启动**和**关闭**的推荐方法是使用 `FastAPI` 应用的 `lifespan` 参数，如前所示。如果你提供了一个 `lifespan` 参数，启动（`startup`）和关闭（`shutdown`）事件处理器将不再生效。要么使用 `lifespan`，要么配置所有事件，两者不能共用。

你可以跳过这一部分。

///

자동 대화형 API 문서를 볼 수 있습니다 ([Swagger UI](https://github.com/swagger-api/swagger-ui) 제공):

![Swagger UI](https://fastapi.tiangolo.com/img/index/index-01-swagger-ui-simple.png)

### 대안 API 문서 { #alternative-api-docs }

그리고 이제, [http://127.0.0.1:8000/redoc](http://127.0.0.1:8000/redoc)로 가봅니다.

대안 자동 문서를 볼 수 있습니다 ([ReDoc](https://github.com/Rebilly/ReDoc) 제공):

#ifdef __cplusplus
} /* end extern "C" */
#endif

#ifdef __cplusplus
// A workaround to ease conversion to and from numpy objects and
// TFE_TensorHandle's.
//
// TODO(ashankar): Figure out an alternative scheme that precludes the need for
// these API-boundary breaking methods.
namespace tensorflow {
class Tensor;
}  // namespace tensorflow

TFE_TensorHandle* TFE_NewTensorHandle(const tensorflow::Tensor& t,

   * There is no need for a blocking lock; when the lock is not
   * available, threads try other slots (or the base).  During these
   * retries, there is increased contention and reduced locality,
   * which is still better than alternatives.
   *
   * Per-thread hash codes are initialized to random values.
   * Contention and/or table collisions are indicated by failed
   * CASes when performing an update operation (see method

  @IgnoreJRERequirement
  public static <T extends @Nullable Object> Supplier<T> memoizeWithExpiration(
      Supplier<T> delegate, Duration duration) {
    checkNotNull(delegate);
    // The alternative of `duration.compareTo(Duration.ZERO) > 0` causes J2ObjC trouble.
    checkArgument(
        !duration.isNegative() && !duration.isZero(), "duration (%s) must be > 0", duration);

/// check | 確認

繰り返しになりますが、同じPython型宣言を使用するだけで、**FastAPI**は対話的なドキュメントを自動的に生成します（Swagger UIを統合）。

パスパラメータが整数として宣言されていることに注意してください。

///

## 標準ベースのメリット、ドキュメンテーションの代替物 { #standards-based-benefits-alternative-documentation }

また、生成されたスキーマが [OpenAPI](https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.1.0.md) 標準に従っているので、互換性のあるツールが多数あります。

// TODO(kevinb): how to prevent warning on UnsignedBytes when building GWT
// javadoc?
@GwtCompatible
public final class Bytes {
  private Bytes() {}

  /**
   * Returns a hash code for {@code value}; obsolete alternative to {@link Byte#hashCode(byte)}.
   *
   * @param value a primitive {@code byte} value
   * @return a hash code for the value
   */
  @InlineMe(replacement = "Byte.hashCode(value)")
  @InlineMeValidationDisabled(

   *
   * @since 21.0
   */
  public static Comparator<Boolean> falseFirst() {
    return BooleanComparator.FALSE_FIRST;
  }

  /**
   * Returns a hash code for {@code value}; obsolete alternative to {@link
   * Boolean#hashCode(boolean)}.
   *
   * @param value a primitive {@code boolean} value
   * @return a hash code for the value
   */
  @InlineMe(replacement = "Boolean.hashCode(value)")

 *
 * // In case bug 12345 happens again we'd rather just die
 * Verify.verify(bill.status() == Status.UNPAID,
 *     "Unexpected bill status: %s", bill.status());
 * }
 *
 * <h3>Comparison to alternatives</h3>
 *
 * <p><b>Note:</b> In some cases the differences explained below can be subtle. When it's unclear
 * which approach to use, <b>don't worry</b> too much about it; just pick something that seems