// Case 3: bytes=10- (absolute start offset with end offset unspecified) -> RangeSpec{false, 10, -1}
// Case 4: bytes=-30 (suffix length specification) -> RangeSpec{true, -30, -1}
type HTTPRangeSpec struct {
	// Does the range spec refer to a suffix of the object?
	IsSuffixLength bool

	// Start and end offset specified in range spec
	Start, End int64
}

// GetLength - get length of range

为此，请使用 Python 标准类型提示 <a href="https://docs.python.org/3/library/typing.html#typing.Union" class="external-link" target="_blank">`typing.Union`</a>：

/// note | 笔记

定义 <a href="https://docs.pydantic.dev/latest/concepts/types/#unions" class="external-link" target="_blank">`Union`</a> 类型时，要把详细的类型写在前面，然后是不太详细的类型。下例中，更详细的 `PlaneItem` 位于 `Union[PlaneItem，CarItem]` 中的 `CarItem` 之前。

///

                                        <div class="col-sm-9">
                                            <la:errors property="attributes.uidNumber"/>
                                            <input type="number" id="attributes.uidNumber" name="attributes.uidNumber" class="form-control"/>
                                        </div>
                                    </div>

	}

	var item madmin.SRIAMItem
	if err := parseJSONBody(ctx, r.Body, &item, ""); err != nil {
		writeErrorResponseJSON(ctx, w, toAdminAPIErr(ctx, err), r.URL)
		return
	}

	var err error
	switch item.Type {
	default:
		err = errSRInvalidRequest(errInvalidArgument)
	case madmin.SRIAMItemPolicy:
		if item.Policy == nil {
			err = globalSiteReplicationSys.PeerAddPolicyHandler(ctx, item.Name, nil, item.UpdatedAt)

// It operates like a buffered pipe, where data written to a RingBuffer
// and can be read back from another goroutine.
// It is safe to concurrently read and write RingBuffer.
type RingBuffer struct {
	buf       []byte
	size      int
	r         int // next position to read
	w         int // next position to write
	isFull    bool
	err       error
	block     bool
	mu        sync.Mutex

     */
    public void addExtractor(final String key, final Extractor extractor) {
        if (StringUtil.isBlank(key)) {
            throw new CrawlerSystemException("Extractor key (MIME type) is null or blank. Cannot register extractor without a valid key.");
        }
        if (extractor == null) {
            throw new CrawlerSystemException("Extractor instance is null. Cannot register null extractor.");
        }

        .build()
    url = server.url("/")
  }

  @Test
  fun get() {
    assumeNotWindows()
    server.enqueue(
      MockResponse
        .Builder()
        .body("Hello!")
        .setHeader("Content-Type", PLAIN)
        .build(),
    )
    val response = client.newCall(request().build()).execute()
    assertThat(response.body).isNotNull()
    response.body.bytes()
    logRecorder

    /* Test that it can be empty. */
    EnumBiMap<Currency, Country> emptyBimap = EnumBiMap.create(Currency.class, Country.class);
    EnumHashBiMap<Currency, Country> bimap3 = // use exact type
        EnumHashBiMap.create(emptyBimap);
    assertEquals(bimap3, emptyBimap);
  }

  @GwtIncompatible // keyType
  public void testKeyType() {

    chunked but has no data.

 *  Breaking: Replace `SocketPolicy` with a new type, `SocketEffect`. It splits triggers (request
    start, response body, etc.) from effects (closing the socket, closing the stream, etc.).

 *  Breaking: Rename `RecordedRequest.sequenceNumber` to `exchangeIndex` and introduce
    `connectionIndex` on that type. These properties may be useful when testing features like
    connection reuse.

  /** The HTTP {@code Content-Length} header field name. */
  public static final String CONTENT_LENGTH = "Content-Length";

  /** The HTTP {@code Content-Type} header field name. */
  public static final String CONTENT_TYPE = "Content-Type";

  /** The HTTP {@code Date} header field name. */
  public static final String DATE = "Date";

  /** The HTTP {@code Pragma} header field name. */