code: func (s *DefaultStorageFactory) SetResourceEtcdPrefix(groupResource schema.GroupResource, prefix string) {
  	overrides := s.Overrides[groupResource]
  	overrides.etcdResourcePrefix = prefix
  	s.Overrides[groupResource] = overrides
  }
docs: // SetResourceEtcdPrefix sets the prefix for a resource, but not the base-dir.  You'll end up in `etcdPrefix/resourceEtcdPrefix`.