# File lib/simple_form/inputs/collection_radio_buttons_input.rb, line 4
      def input
        label_method, value_method = detect_collection_methods

        @builder.send("collection_#{input_type}",
          attribute_name, collection, value_method, label_method,
          input_options, input_html_options, &collection_block_for_nested_boolean_style
        )
      end