Why setAttachment is skipped during generation lua bindings

Hello there i have question. Why in file:

cocos2d-x/tools/tolua/cocos2dx_spine.ini

We have:

skip = SkeletonRenderer::[findBone findSlot getAttachment setAttachment update draw createWithData],

why setAttachment is skipped?

Because getAttachment is hard to be bound to Lua,so as set function, it is skipped.Another reason is the how to use setAttachment in the test case.

OK i simply removed skipping this method and everything is working… I still don’t understand.