// checksum which are different on each disks.
	for index := range partsMetadata {
		if partsMetadata[index].IsValid() {
			partsMetadata[index].Size = fi.Size
			partsMetadata[index].ModTime = fi.ModTime
			partsMetadata[index].Metadata = fi.Metadata
			partsMetadata[index].Parts = fi.Parts
			partsMetadata[index].Checksum = fi.Checksum
			partsMetadata[index].Versioned = opts.Versioned || opts.VersionSuspended
		}
	}

    /**
     * Scrolls through all documents in the specified index and applies the callback function to each hit.
     *
     * @param index the name of the index to scroll through
     * @param callback the function to apply to each search hit, returning true to continue or false to stop
     * @return the number of documents processed
     */
    public static long scroll(final String index, final Function<SearchHit, Boolean> callback) {

    int expectedModCount = modCount;

    NodeIterator(int index) {
      int size = size();
      checkPositionIndex(index, size);
      if (index >= (size / 2)) {
        previous = tail;
        nextIndex = size;
        while (index++ < size) {
          previous();
        }
      } else {
        next = head;
        while (index-- > 0) {
          next();
        }
      }

    @Override
    public Range<C> get(int index) {
      checkElementIndex(index, size);

      Cut<C> lowerBound;
      if (positiveBoundedBelow) {
        lowerBound = (index == 0) ? Cut.belowAll() : ranges.get(index - 1).upperBound;
      } else {
        lowerBound = ranges.get(index).upperBound;
      }

      Cut<C> upperBound;
      if (positiveBoundedAbove && index == size - 1) {

            }
            if (!id.endsWith(NDJSON_EXTENTION)) {
                final String index;
                final String filename;
                if (id.endsWith(".bulk")) {
                    index = id.substring(0, id.length() - 5);
                    filename = id;
                } else {
                    index = id;
                    filename = id + ".bulk";
                }

    @Override
    public Class<?> getElementClassOfCollection(final int index) {
        assertArgumentArrayIndex("index", index, parameterTypes.length);

        if (!Collection.class.isAssignableFrom(parameterTypes[index]) || !isParameterized(index)) {
            return null;
        }
        final ParameterizedClassDesc pcd = parameterizedClassDescs[index].getArguments()[0];
        if (pcd == null) {
            return null;

public class RecordedRequest(
  /**
   * The index of the socket connection that carried this request. If two recorded requests share a
   * connection index, they also shared a socket connection.
   */
  public val connectionIndex: Int,
  /**
   * The index of this exchange on its HTTP connection. A request is uniquely identified by the
   * (connection index, exchange index) pair.
   */
  public val exchangeIndex: Int,
  /**

* [**Swagger UI**](https://github.com/swagger-api/swagger-ui) 提供互動式探索，讓你可以直接從瀏覽器呼叫並測試你的 API 。

![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)

* 使用 [**ReDoc**](https://github.com/Rebilly/ReDoc) 的替代 API 文件。

![ReDoc](https://fastapi.tiangolo.com/img/index/index-06-redoc-02.png)

### 現代 Python { #just-modern-python }

這一切都基於標準的 **Python 型別**宣告（感謝 Pydantic）。無需學習新的語法，只需使用標準的現代 Python。

                    int index = userInfo.indexOf(':');
                    user = index != -1 ? userInfo.substring(0, index) : userInfo;
                    if (index != -1) {
                        password = userInfo.substring(index + 1);
                    }
                    index = user.indexOf('\\');
                    if (index == -1) {
                        index = user.indexOf('/');
                    }

        session.addUserMessage("User 3");
        session.addAssistantMessage("Assistant 3");
        assertEquals(6, session.getMessageCount());

        // Trimming to 3 would start at index 3 (assistant), so it should go back to index 2 (user)
        session.trimHistory(3);

        final List<ChatMessage> messages = session.getMessages();
        assertEquals(4, messages.size());