此操作从控制器层获得一个string值，并返回复杂SampleOperationResponse类型对象。

This operation takes a String value from the controller layer and returns a complex SampleOperationResponse type object. This data type contains the following.

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我们将涵盖如何做天空取代并获得磨砂使用亮度键，添加元素的三维层构建一个基本的复合材料。

We will be covering how to do sky replace and get a matte using Luma Keys and add 3d layers of elements to build a basic composite.

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