I think the initial is sometimes called a compositor. Essentially from the diagrams of what I have seen so far from the design pattern is that compositors are more complex in its attributes while the leaf seems to only contain one function...


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    $\begingroup$ You need to explain the question better. Right now it is not understandable what you want to ask. $\endgroup$ – Navjot Waraich May 3 at 13:57

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