module BootstrapForm::Inputs::GroupedCollectionSelect

def grouped_collection_select_with_bootstrap(method, collection, group_method,
                                             group_label_method, option_key_method,
                                             option_value_method, options={}, html_options={})
  html_options = html_options.reverse_merge(control_class: "form-select")
  form_group_builder(method, options, html_options) do
    prepend_and_append_input(method, options) do
      grouped_collection_select_without_bootstrap(method, collection, group_method,
                                                  group_label_method, option_key_method,
                                                  option_value_method, options, html_options)
    end
  end
end