store_accessor

# File activerecord/lib/active_record/store.rb, line 74
      def store_accessor(store_attribute, *keys)
        keys = keys.flatten

        _store_accessors_module.module_eval do
          keys.each do |key|
            define_method("#{key}=") do |value|
              write_store_attribute(store_attribute, key, value)
            end

            define_method(key) do
              read_store_attribute(store_attribute, key)
            end
          end
        end

        self.stored_attributes[store_attribute] ||= []
        self.stored_attributes[store_attribute] |= keys
      end