robotlegs/robotlegs-framework — comment on commit df6e70d300d37ac88640e8e58b8cc119a81fbf10
File: src/org/robotlegs/v2/extensions/guards/api/IGuardGroup.as line 15
By darscan:

There's no use case right now, so it was mostly for symmetry (which always crops up eventually :)). However, I do plan to build some command triggers that manipulate the guards/hooks as they run.