*/
    public InetAddress getAddress() {
        return address;
    }

    /**
     * Check if this is an IPv6 address
     *
     * @return true if IPv6, false if IPv4
     */
    public boolean isIpv6() {
        return ipv6;
    }

    /**
     * Check if RSS is supported
     *
     * @return true if RSS capable
     */
    public boolean isRssCapable() {

        }

        // Runtime exceptions and other errors are likely not recoverable
        return false;
    }

    /**
     * Check if error suggests fallback to TCP is needed
     *
     * @param error the error to check
     * @return true if TCP fallback is recommended
     */
    public boolean shouldFallbackToTcp(Exception error) {
        // Hardware errors suggest RDMA is not working

위의 예시에서, `item_id`는 `int`로 선언되었습니다.

/// check | 확인

이 기능은 함수 내에서 오류 검사, 자동완성 등의 편집기 기능을 활용할 수 있게 해줍니다.

///

## 데이터 <dfn title="다음으로도 알려져 있습니다: 직렬화, 파싱, 마샬링">변환</dfn> { #data-conversion }

이 예제를 실행하고 [http://127.0.0.1:8000/items/3](http://127.0.0.1:8000/items/3)을 열면, 다음 응답을 볼 수 있습니다:

```JSON
{"item_id":3}
```

/// check | 확인

함수가 받은(반환도 하는) 값은 문자열 `"3"`이 아니라 파이썬 `int` 형인 `3`입니다.

     *
     * @param text the string to check
     * @return true if empty or null, false otherwise
     */
    public static final boolean isEmpty(final String text) {
        return text == null || text.length() == 0;
    }

    /**
     * Checks if the string is not empty.
     *
     * @param text the string to check
     * @return true if not empty, false otherwise
     */

        assertEquals(8, bytesWritten);

        // Check completion filter
        assertEquals(0x12345678, SMBUtil.readInt4(dst, 10));

        // Check FID
        assertEquals(0xABCD, SMBUtil.readInt2(dst, 14));

        // Check watch tree flag
        assertEquals(0x01, dst[16]);

        // Check reserved byte is zero
        assertEquals(0x00, dst[17]);
    }

    @Test

          webSocket: WebSocket,
          t: Throwable,
          response: Response?,
        ) {
          t.printStackTrace(System.out)
          latch.countDown()
        }
      },
    )

    check(latch.await(30, TimeUnit.SECONDS)) { "Timed out waiting for test $number to finish." }
    val endNanos = System.nanoTime()
    val tookMs = TimeUnit.NANOSECONDS.toMillis(endNanos - startNanos.get())
    println("Took ${tookMs}ms")

 *
 * @author mbechler
 */
public interface SmbNegotiationResponse extends CommonServerMessageBlock, Response {

    /**
     * Check if the negotiation response is valid
     *
     * @param cifsContext the CIFS context
     * @param request the negotiation request
     * @return whether the protocol negotiation was successful
     */

{* ../../docs_src/path_params/tutorial002_py310.py hl[7] *}

本例把 `item_id` 的类型声明为 `int`。

/// check | 检查

类型声明将为函数提供错误检查、代码补全等编辑器支持。

///

## 数据<dfn title="也称为：序列化、解析、编组">转换</dfn> { #data-conversion }

运行示例并访问 [http://127.0.0.1:8000/items/3](http://127.0.0.1:8000/items/3)，返回的响应如下：

```JSON
{"item_id":3}
```

/// check | 检查

注意，函数接收并返回的值是 `3`（ `int`），不是 `"3"`（`str`）。

          silent-response: true
    scm:
      - git:
          wipe-workspace: false
    builders:
      - multijob:
          name: Sanity Check
          projects:
            - name: elastic+elasticsearch+%BRANCH%+intake+multijob+sanity-check
              kill-phase-on: NEVER
              current-parameters: true
              git-revision: true
      - multijob:
          name: Verification

<img src="/img/tutorial/security/image12.png">

## Check the username { #check-the-username }

Here's a more complete example.

Use a dependency to check if the username and password are correct.

For this, use the Python standard module [`secrets`](https://docs.python.org/3/library/secrets.html) to check the username and password.