code: function(socket, reqId, moduleId, msg) {
    doSend(socket, 'monitor', protocol.composeRequest(reqId, moduleId, msg));
  }
docs: send msg to monitor
  
  @param {Object} socket socket-io object
  @param {Number} reqId request id
  @param {String} moduleId module id/name
  @param {Object} msg message
  @api private