class Acl {

  public static Principal getGoogleGroupPrincipal(String groupId) {
    checkArgument(!Strings.isNullOrEmpty(groupId), "Google group ID can not be empty or null");
    return new Principal().setGsuitePrincipal(new GSuitePrincipal().setGsuiteGroupEmail(groupId));
  }

  private  Acl(Builder builder);

}