public UserProfileModel(
     UserManager <FlbUser> userManager,
     SignInManager <FlbUser> signInManager,
     StepDataService stepDataService)
 {
     _userManager     = userManager;
     _signInManager   = signInManager;
     _stepDataService = stepDataService;
 }
 public LoginModel(
     SignInManager <FlbUser> signInManager,
     UserManager <FlbUser> userManager,
     ILogger <LoginModel> logger,
     StepDataService stepDataService)
 {
     _signInManager   = signInManager;
     _userManager     = userManager;
     _logger          = logger;
     _stepDataService = stepDataService;
 }