code: func ResolveCacheExporterFunc(sm *session.Manager) remotecache.ResolveCacheExporterFunc {
  	return func(ctx context.Context, attrs map[string]string) (remotecache.Exporter, error) {
  		store := attrs[attrDest]
  		if store == "" {
  			return nil, errors.New("local cache exporter requires dest")
  		}
  		csID := contentStoreIDPrefix + store
  		cs, err := getContentStore(ctx, sm, csID)
  		if err != nil {
  			return nil, err
  		}
  		return remotecache.NewExporter(cs), nil
  	}
  }
docs: // ResolveCacheExporterFunc for "local" cache exporter.