paper-trail-gem--paper_trail/lib/paper_trail/serializers/yaml.rb

require 'yaml'

module PaperTrail
  module Serializers
    module YAML
      extend self # makes all instance methods become module methods as well

      def load(string)
        ::YAML.load string
      end

      def dump(object)
        ::YAML.dump object
      end
    end
  end
end