class ActiveModel::Serializers::Xml::Serializer

def add_attributes_and_methods
  (serializable_attributes + serializable_methods).each do |attribute|
    key = ActiveSupport::XmlMini.rename_key(attribute.name, options)
    ActiveSupport::XmlMini.to_tag(key, attribute.value,
      options.merge(attribute.decorations))
  end
end