public virtual Task <CreatePersonResult> CreatePersonAsync(string personGroupId, string name,
                                                            string userData = null)
 {
     return(PolicyService.ExecuteRetryAndCapture400Errors(
                "FaceService.CreatePersonAsync",
                ApiKeys.FaceRetryInSeconds,
                () =>
     {
         var result = FaceRepository.CreatePersonAsync(personGroupId, name, userData);
         return result;
     },
                null));
 }