serialize

# File activemodel/lib/active_model/serializers/xml.rb, line 78
        def serialize
          require 'builder' unless defined? ::Builder

          options[:indent]  ||= 2
          options[:builder] ||= ::Builder::XmlMarkup.new(:indent => options[:indent])

          @builder = options[:builder]
          @builder.instruct! unless options[:skip_instruct]

          root = (options[:root] || @serializable.class.model_name.element).to_s
          root = ActiveSupport::XmlMini.rename_key(root, options)

          args = [root]
          args << {:xmlns => options[:namespace]} if options[:namespace]
          args << {:type => options[:type]} if options[:type] && !options[:skip_types]

          @builder.tag!(*args) do
            add_attributes_and_methods
            add_includes
            add_extra_behavior
            add_procs
            yield @builder if block_given?
          end
        end