I don't believe that this is used in the current codebase.  However, there's a WIP over at Zentific that does use this.  See https://github.com/Zentific/libvmi/commit/4551113981b82f87f203fef317047278ee906335#L1R86 for reference.  I'm not sure the best answer here.  On one hand, the Zentific thing is a bit of a hack.  On the other hand, it works and I don't know of a better solution.  I'm open to suggestions...