public async Task LoadPage()
        {
            IsEnabledCities = false;
            ResponseDepartments response = await apiService.GetDepartments(new RequestDepartments());

            ValidateResponseDepartments(response);
        }
        private async void ValidateResponseDepartments(ResponseDepartments response)
        {
            Departaments = new ObservableCollection <Departament>();

            if (await validatorService.ValidateResponse(response) == false)
            {
                return;
            }

            Departaments = new ObservableCollection <Departament>(response.Departaments);
        }