public QuestionController(IHubContext <QuestionHub> questionHubContext, IQuizEngineService quizEngineService, IResultService resultService)
 {
     _questionHubContext = questionHubContext;
     _quizEngineService  = quizEngineService;
     _resultService      = resultService;
 }
 public QuestionHub(IQuizEngineService iquizEngineService, IResultService resultService, IGraphService graphService)
 {
     _iquizEngineService = iquizEngineService;
     _resultService      = resultService;
     _graphService       = graphService;
 }