code: function RpcChannel(connection) {
      if (!connection) {
          var msg = 'The connection is mandatory!';
          logger.error(msg);
          throw new TypeError(msg);
      }
      this._connection = connection;
      this._open = true;
      this._queue = [];
      var self = this;
      setInterval(function () {
          executor.call(self);
      }, 100).unref();
  }
docs: The constructor require a [Http|Tcp]Connection, the connection must be already open.