public virtual void CreatePersonGroup(string personGroupId, string name, string userData = null)
 {
     PolicyService.ExecuteRetryAndCapture400Errors(
         "FaceService.CreatePersonGroup",
         ApiKeys.FaceRetryInSeconds,
         () =>
     {
         FaceRepository.CreatePersonGroup(personGroupId, name, userData);
         return(true);
     },
         false);
 }