public async void AddList(object sender, FormEvent args)
        {
            var obj          = args.Object as PlacesModel;
            var isSuccessful = await PlacesModel.AddToList(obj);

            if (isSuccessful)
            {
                places.Add(new PlacesViewModel(obj));
            }
            else
            {
                await DisplayAlert("Oops", "Something went wrong", "Try again");
            }
            await Navigation.PopAsync();
        }
        public async void AddList(object sender, FormEvent args)
        {
            var obj          = args.Object as PlacesModel;
            var isSuccessful = await PlacesModel.AddToList(obj);

            if (isSuccessful)
            {
                appointmentRequest.Place = PlacesModel.PlacesList.FirstOrDefault();
                await Navigation.PopAsync();
            }
            else
            {
                await DisplayAlert("Oops", "Something went wrong", "Try again");
            }
        }