Unclear how to resume iterating with `PageIterator` if the callback returns `False`

In other SDKs, the iterator class typically has a Resume method to restart the iteration where it left off, and a corresponding State property to check if the iterator has completed or not. For example, in .NET:

var pageIterator = PageIterator<Message, MessageCollectionResponse>
    .CreatePageIterator(
        graphClient,
        messages,
        (msg) =>
        {
            Console.WriteLine(msg.Subject);
            count++;
            // If we've iterated over the limit,
            // stop the iteration by returning false
            return count < pauseAfter;
        });

await pageIterator.IterateAsync();

while (pageIterator.State != PagingState.Complete)
{
    Console.WriteLine("Iteration paused for 5 seconds...");
    await Task.Delay(5000);
    // Reset count
    count = 0;
    await pageIterator.ResumeAsync();
}

Is there a way to do this in this SDK?

首先阅读 PageIterator 的实现及其回调处理，然后将所请求的行为与 issue 中的 .NET 示例进行比较。确定如何让暂停的迭代公开完成状态，并从当前位置继续；当 SDK 的行为及其用法得到明确定义和验证后，即表示完成。