docs: function() {
      var data, json, log = accessLogFormat.call(self, this.request, this, app);
      if (format == 'json') {
        log = app.applyFilters('access_log_data', log, this.request, app);
        json = JSON.stringify(log);
        data = [log, json]; // msg (object), log (text)
        app.emit('access_log', json, data, log);
      } else {
        data = [log, log];
        app.emit('access_log', log, data);
      }
    }