code: function () {
      var self = this;
      Object.keys(this.listeners).forEach(function (name) {
        self.io.on(`job.status.${name}`, function (id) {
          if (!self.jobs[id]) {
            debug('[simple-runner][jobdata] got a status update, but the job was never added', id, Object.keys(self.jobs));
            return;
          }
          return self.listeners[name].apply(self.jobs[id], [].slice.call(arguments, 1));
        });
      });
    }
docs: private api