stored_attributes

# File activerecord/lib/active_record/store.rb, line 110
      def stored_attributes
        parent = superclass.respond_to?(:stored_attributes) ? superclass.stored_attributes : {}
        if self.local_stored_attributes
          parent.merge!(self.local_stored_attributes) { |k, a, b| a | b }
        end
        parent
      end