checker(q="somequery")
```

... und übergibt, was immer das als Wert dieser Abhängigkeit in unserer *Pfadoperation-Funktion* zurückgibt, als den Parameter `fixed_content_included`:

{* ../../docs_src/dependencies/tutorial011_an_py310.py hl[22] *}

/// tip | Tipp

Das alles mag gekünstelt wirken. Und es ist möglicherweise noch nicht ganz klar, welchen Nutzen das hat.

Diese Beispiele sind bewusst einfach gehalten, zeigen aber, wie alles funktioniert.

모든 데이터 변환, 검증, 문서화 등은 정상적으로 작동할 것입니다.

이렇게 하면 각 모델 간의 차이점만 선언할 수 있습니다(평문 `password`, `hashed_password`, 그리고 비밀번호가 없는 경우):

{* ../../docs_src/extra_models/tutorial002_py310.py hl[7,13:14,17:18,21:22] *}

## `Union` 또는 `anyOf` { #union-or-anyof }

두 가지 이상의 타입을 포함하는 `Union`으로 응답을 선언할 수 있습니다. 이는 응답이 그 중 하나의 타입일 수 있음을 의미합니다.

OpenAPI에서는 이를 `anyOf`로 정의합니다.

HSPLokhttp3/JvmCallExtensionsKt$executeAsync$2$2$onResponse$1;-><init>(Lokhttp3/Call;)V
HSPLokhttp3/JvmCallExtensionsKt$executeAsync$2$2;-><init>(Lkotlinx/coroutines/CancellableContinuation;)V
HSPLokhttp3/JvmCallExtensionsKt$executeAsync$2$2;->onFailure(Lokhttp3/Call;Ljava/io/IOException;)V
HSPLokhttp3/JvmCallExtensionsKt$executeAsync$2$2;->onResponse(Lokhttp3/Call;Lokhttp3/Response;)V

- github.com/go-jose/go-jose/v4: [v4.0.4 → v4.1.3](https://github.com/go-jose/go-jose/compare/v4.0.4...v4.1.3)
- github.com/godbus/dbus/v5: [v5.1.0 → v5.2.2](https://github.com/godbus/dbus/compare/v5.1.0...v5.2.2)
- github.com/golang-jwt/jwt/v5: [v5.2.2 → v5.3.0](https://github.com/golang-jwt/jwt/compare/v5.2.2...v5.3.0)
- github.com/golang/glog: [v1.2.4 → v1.2.5](https://github.com/golang/glog/compare/v1.2.4...v1.2.5)

  }

  public void testCopyOf_array_nonempty() {
    double[] array = new double[] {0, 1, 3};
    ImmutableDoubleArray iia = ImmutableDoubleArray.copyOf(array);
    array[2] = 2;
    assertThat(iia.asList()).containsExactly(0.0, 1.0, 3.0).inOrder();
  }

  public void testCopyOf_iterable_notCollection_empty() {
    Iterable<Double> iterable = iterable(Collections.<Double>emptySet());

  }

  public void testNewDataInput_readFullyWithOffset() {
    ByteArrayDataInput in = ByteStreams.newDataInput(bytes);
    byte[] actual = new byte[4];
    in.readFully(actual, 2, 2);
    assertEquals(0, actual[0]);
    assertEquals(0, actual[1]);
    assertEquals(bytes[0], actual[2]);
    assertEquals(bytes[1], actual[3]);
  }

  public void testNewDataInput_readLine() {

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。

  }

  public void testNewDataInput_readFullyWithOffset() {
    ByteArrayDataInput in = ByteStreams.newDataInput(bytes);
    byte[] actual = new byte[4];
    in.readFully(actual, 2, 2);
    assertEquals(0, actual[0]);
    assertEquals(0, actual[1]);
    assertEquals(bytes[0], actual[2]);
    assertEquals(bytes[1], actual[3]);
  }

  public void testNewDataInput_readLine() {

          }
        }
        // Since sqrt(2) is irrational, log2(x) - logFloor cannot be exactly 0.5
        //
        // To determine which side of logFloor.5 the logarithm is,
        // we compare x^2 to 2^(2 * logFloor + 1).
        BigInteger x2 = x.pow(2);
        int logX2Floor = x2.bitLength() - 1;
        return (logX2Floor < 2 * logFloor + 1) ? logFloor : logFloor + 1;
    }
    throw new AssertionError();
  }

            // Given
            String testString = "Hello";
            byte[] stringBytes = testString.getBytes(StandardCharsets.UTF_16LE);
            byte[] bufferWithTermination = new byte[stringBytes.length + 2]; // +2 for null termination
            System.arraycopy(stringBytes, 0, bufferWithTermination, 0, stringBytes.length);
            bufferWithTermination[stringBytes.length] = 0x00;