- The 404 request handler for the GCE Ingress load balancer now exports prometheus metrics, including:

  - `http_404_request_total` (the number of 404 requests handled)
  - `http_404_request_duration_ms` (the amount of time the server took to respond in ms)

fa-laugh-beam:before{content:"\f59a"}.fa-laugh-squint:before{content:"\f59b"}.fa-laugh-wink:before{content:"\f59c"}.fa-layer-group:before{content:"\f5fd"}.fa-leaf:before{content:"\f06c"}.fa-leanpub:before{content:"\f212"}.fa-lemon:before{content:"\f094"}.fa-less:before{content:"\f41d"}.fa-less-than:before{content:"\f536"}.fa-less-than-equal:before{content:"\f537"}.fa-level-down-alt:before{content:"\f3be"}.fa-level-up-alt:before{content:"\f3bf"}.fa-life-ring:before{content:"\f1cd"}.fa-lightbulb:b...

  @ArgumentsSource(ProtocolParamProvider::class)
  fun readTimeoutMoreGranularThanBodySize(
    protocol: Protocol,
    mockWebServer: MockWebServer,
  ) {
    setUp(protocol, mockWebServer)
    val body = CharArray(4096) // 4KiB to read.
    Arrays.fill(body, 'y')
    server.enqueue(
      MockResponse.Builder()
        .body(String(body))
        .throttleBody(1024, 1, TimeUnit.SECONDS) // Slow connection 1KiB/second.

* 🌐 Add Portuguese translation for `docs/pt/docs/tutorial/path-params-numeric-validations.md`. PR [#4099](https://github.com/tiangolo/fastapi/pull/4099) by [@lbmendes](https://github.com/lbmendes).
* 🌐 Add French translation for `deployment/versions.md`. PR [#3690](https://github.com/tiangolo/fastapi/pull/3690) by [@rjNemo](https://github.com/rjNemo).

    Nullability was previously ambiguous and lenient but now the compiler will
    enforce strict null checks.

 *  New: The response message is now non-null. This is the "Not Found" in the
    status line "HTTP 404 Not Found". If you are building responses
    programmatically (with `new Response.Builder()`) you must now always supply
    a message. An empty string `""` is permitted. This value was never null on

 * </p>
 *
 * @author koichik
 */
public abstract class CopyUtil {

    /** コピーで使用するバッファサイズ */
    protected static final int DEFAULT_BUF_SIZE = 4096;

    // ////////////////////////////////////////////////////////////////
    // from InputStream to OutputStream
    //
    /**
     * 入力ストリームから出力ストリームへコピーします。
     * <p>
     * 入力ストリーム、出力ストリームともクローズされません。

      <match value="0xcafebabe" type="string" offset="0">
        <match value="0xfeedface" type="string" offset="4096"/>
        <match value="0xfeedfacf" type="string" offset="4096"/>
        <match value="0xcefaedfe" type="string" offset="4096"/>
        <match value="0xcffaedfe" type="string" offset="4096"/>
      </match>
    </magic>
    <glob pattern="*.jnilib"/>
  </mime-type>

     * The value is, e.g. 404 <br>
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getCrawlerFailureUrlStatusCodes();

    /**
     * Get the value for the key 'crawler.failure.url.status.codes' as {@link Integer}. <br>
     * The value is, e.g. 404 <br>

  // will be written is mounted into the container's filesystem.
  // Message written is intended to be brief final status, such as an assertion failure message.
  // Will be truncated by the node if greater than 4096 bytes. The total message length across
  // all containers will be limited to 12kb.
  // Defaults to /dev/termination-log.
  // Cannot be updated.
  // +optional
  optional string terminationMessagePath = 13;

    deprecated=True,
)
router2_default = APIRouter()
router4_override = APIRouter(
    prefix="/level4",
    tags=["level4a", "level4b"],
    dependencies=[Depends(dep4)],
    responses={
        404: {"description": "Client error level 4"},
        504: {"description": "Server error level 4"},
    },
    default_response_class=ResponseLevel4,
    callbacks=callback_router4.routes,
    deprecated=True,
)