code: func ImportConfigs(c context.Context) (string, error) {
  	cfg, rev, err := fetchConfigs(c)
  	if err != nil {
  		return "", errors.Annotate(err, "failed to fetch project configs").Err()
  	}
  	if err := importIdentities(c, cfg); err != nil {
  		return "", errors.Annotate(err, "failed to import project configs").Err()
  	}
  	return rev, nil
  }
docs: // ImportConfigs fetches projects.cfg and updates datastore copy of it.
  //
  // Called from cron.