Simply put, Python provides an elegant solution by including an immutable collection-based class designed to deal exclusively with sequences of characters.

简单来说，Python通过包括一个不变的基于集合的类来提供一个优秀的解决方案，这个基于集合的类是专门为有效地处理字符序列而设计的。

youdao

Now you can create the appropriate Web services artifacts based on this wrapper class, which internally USES the existing collection-based implementation.

现在，我们可以基于这个包装器类来创建适当的Web服务构件了，它在内部使用现有的基于集合的实现。

youdao

DKWorkListICM - This class represents a filtered view (based on criteria such as worknode and priority) for a collection of workpackages.

DKWorkListICM —— 这个类代表工作包集合的一个筛选视图（基于工作节点和优先级这样的标准）。

youdao