We'll start with a mechanism by which you can express closures that embody a pattern of computation, which is a concept from functional programming.
我们先从一个机制开始，用这个机制可以表示包含计算模式的闭包，计算模式是一个来自函数式编程的概念。
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In part, this is achieved by leveraging the SCA programming model, which enables treating different types of services with one description and deployment mechanism.