你怎么称呼对象级别相当于Mixin / Traits系统，它有一个模式名称吗？

I previously asked about what Mixins were, and have begun to get the gist of what the pattern means. But it got me wondering if there is a common pattern name for doing something like Mixins at an Object level as opposed to the Class level.I previously asked about what Mixins were, and