public void testAsList_subList_toArray_roundTrip() {
    double[] array = {0.0, 1.0, 2.0, 3.0};
    List<Double> list = Doubles.asList(array);
    assertThat(Doubles.toArray(list.subList(1, 3))).isEqualTo(new double[] {1.0, 2.0});
    assertThat(Doubles.toArray(list.subList(2, 2))).isEmpty();
  }

  // `primitives` can't depend on `collect`, so this is what the prod code has to return.

### Import `APIRouter` { #import-apirouter }

You import it and create an "instance" the same way you would with the class `FastAPI`:

```Python hl_lines="1  3" title="app/routers/users.py"
{!../../docs_src/bigger_applications/app/routers/users.py!}
```

### *Path operations* with `APIRouter` { #path-operations-with-apirouter }

- [v1.32.0-alpha.3](#v1320-alpha3)
  - [Downloads for v1.32.0-alpha.3](#downloads-for-v1320-alpha3)
    - [Source Code](#source-code-13)
    - [Client Binaries](#client-binaries-13)
    - [Server Binaries](#server-binaries-13)
    - [Node Binaries](#node-binaries-13)
    - [Container Images](#container-images-13)
  - [Changelog since v1.32.0-alpha.2](#changelog-since-v1320-alpha2)
  - [Changes by Kind](#changes-by-kind-12)

pkg crypto/tls, type SignatureScheme uint16
pkg crypto/x509, const NameMismatch = 5
pkg crypto/x509, const NameMismatch InvalidReason
pkg crypto/x509, const SHA256WithRSAPSS = 13
pkg crypto/x509, const SHA256WithRSAPSS SignatureAlgorithm
pkg crypto/x509, const SHA384WithRSAPSS = 14
pkg crypto/x509, const SHA384WithRSAPSS SignatureAlgorithm
pkg crypto/x509, const SHA512WithRSAPSS = 15

//// tab | Python 3.10+

In Python 3.9 oder darüber, ist `Annotated` Teil der Standardbibliothek, also können Sie es von `typing` importieren.

```Python hl_lines="1  3"
{!> ../../docs_src/query_params_str_validations/tutorial002_an_py310.py!}
```

////

//// tab | Python 3.8+

In Versionen unter Python 3.9 importieren Sie `Annotated` von `typing_extensions`.

  static final String E11_A = "1-1a";
  static final String E12 = "1-2";
  static final String E12_A = "1-2a";
  static final String E12_B = "1-2b";
  static final String E21 = "2-1";
  static final String E13 = "1-3";
  static final String E14 = "1-4";
  static final String E23 = "2-3";
  static final String E31 = "3-1";
  static final String E34 = "3-4";
  static final String E41 = "4-1";
  static final String E15 = "1-5";

  public void testAsList_subList_toArray_roundTrip() {
    int[] array = {(int) 0, (int) 1, (int) 2, (int) 3};
    List<Integer> list = Ints.asList(array);
    assertThat(Ints.toArray(list.subList(1, 3))).isEqualTo(new int[] {(int) 1, (int) 2});
    assertThat(Ints.toArray(list.subList(2, 2))).isEqualTo(new int[] {});
  }

  // `primitives` can't depend on `collect`, so this is what the prod code has to return.

    Set<Integer> keySet = cache.asMap().keySet();
    assertThat(keySet).containsExactly(0, 1, 2, 3, 4, 5, 6, 7, 8, 9);

    // get saves 1, 3; 0, 2, 4 expire
    getAll(cache, asList(1, 3));
    CacheTesting.drainRecencyQueues(cache);
    ticker.advance(1, MILLISECONDS);
    assertThat(keySet).containsExactly(5, 6, 7, 8, 9, 1, 3);

    // get saves 6, 8; 5, 7, 9 expire
    getAll(cache, asList(6, 8));

        assertEquals((byte) NameServicePacket.NB, dst[11]); // questionType low byte
        assertEquals((byte) 0x00, dst[12]); // questionClass high byte
        assertEquals((byte) NameServicePacket.IN, dst[13]); // questionClass low byte
    }

    @Test
    void testReadQuestionSectionWireFormat() {
        byte[] src = new byte[20];
        NameServicePacket.writeInt2(NameServicePacket.NB, src, 10); // Mock type

        doReturn(mockIn).when(spyHandle).getInput();

        when(mockIn.readDirect(any(byte[].class), anyInt(), anyInt())).thenReturn(5);

        byte[] b = new byte[10];
        int n = spyHandle.recv(b, 1, 3);
        assertEquals(5, n);
        verify(mockIn).readDirect(eq(b), eq(1), eq(3));
    }

    @Test
    @DisplayName("send delegates to output.writeDirect with args")