public void NavigateAndReset()
 {
     using (_router !.NavigateAndReset.Execute(_mockViewModel()).Subscribe())
     {
         _router.NavigationStack.ToList();
     }
 }
 public void NavigateBack()
 {
     using (_router !.NavigateAndReset.Execute(_mockViewModel()).Subscribe())
         using (_router.Navigate.Execute(_mockViewModel()).Subscribe())
             using (_router.NavigateBack.Execute().Subscribe())
             {
             }
 }