Marshal for Sequel models

marshal_sequel.rb

module Sequel
  class Model
    module InstanceMethods
      def _dump(level)
        Marshal.dump(values: values, new: new?, modified: modified?)
      end
    end

    module ClassMethods
      def _load(args)
        attrs = Marshal.load(args)
        inst = new(attrs[:values])
        inst.instance_variable_set("@new", attrs[:new])
        inst.instance_variable_set("@modified", attrs[:modified])
        inst
      end
    end
  end
end