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