code: func (s *Storage) ListFilterAll(fns ...relutil.FilterFunc) ([]*rspb.Release, error) {
  	s.Log("listing all releases with filter")
  	return s.Driver.List(func(rls *rspb.Release) bool {
  		return relutil.All(fns...).Check(rls)
  	})
  }
docs: // ListFilterAll returns the set of releases satisfying the predicate
  // (filter0 && filter1 && ... && filterN), i.e. a Release is included in the results
  // if and only if all filters return true.