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