```ruby
module MortgageCalculator
  class StampDutiesController < ::MortgageCalculator::PropertyTaxCalculatorController
    def calculator
      MortgageCalculator::StampDuty
    end

    def i18n_locale_namespace
      'stamp_duty'
    end
    helper_method :i18n_locale_namespace

    def calculator_form_path
      stamp_duty_path
    end
    helper_method :calculator_form_path

    def other_countries
      ['scotland', 'wales']
    end
    helper_method :other_countries

    def show_update_banner?
      true
    end
    helper_method :show_update_banner?
  end
end
```

Hide the banner for SDC
user
```ruby
module MortgageCalculator
  class StampDutiesController < ::MortgageCalculator::PropertyTaxCalculatorController
    def calculator
      MortgageCalculator::StampDuty
    end

    def i18n_locale_namespace
      'stamp_duty'
    end
    helper_method :i18n_locale_namespace

    def calculator_form_path
      stamp_duty_path
    end
    helper_method :calculator_form_path

    def other_countries
      ['scotland', 'wales']
    end
    helper_method :other_countries

    def show_update_banner?
      false
    end
    helper_method :show_update_banner?
  end
end
```
assistant