- nullbackend-__construct/
- nullbackend-delete/
- nullbackend-deleteall/
- nullbackend-deletemultiple/
- nullbackend-garbagecollection/
- nullbackend-get/
- nullbackend-getmultiple/
- nullbackend-invalidate/
- nullbackend-invalidateall/
- nullbackend-invalidatemultiple/
- nullbackend-removebin/
- nullbackend-set/
- nullbackend-setmultiple/