unpacked_cookie_data

# File actionpack/lib/action_dispatch/middleware/session/cookie_store.rb, line 87
      def unpacked_cookie_data(env)
        env["action_dispatch.request.unsigned_session_cookie"] ||= begin
          stale_session_check! do
            if data = get_cookie(env)
              data.stringify_keys!
            end
            data || {}
          end
        end
      end