新的搜索栏让自定义搜索变得更加简单、精准，还提供了筛选功能，用来标记邮件。

The new search box makes it easy to customize your search to find exactly what you're looking for.

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最后一个小节将演示如何实现自定义浏览路径记录导航标记，该标记将使用这个新服务（属于该 SPI 的一部分）。

The last subsection shows how to implement a custom breadcrumb navigation tag, which uses this new service (part of the SPI).

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通过添加另一个通过电子邮件来发送标记消息的方法，也许是将其命名为disk_alert (self)，这样就可以进一步自定义新类。

You could further customize the new class by adding another method, perhaps called disk_alert (self), which would E-mail flagged messages.

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