var Sequence = require('./Sequence'); var Util = require('util'); var Packets = require('../packets'); module.exports = Ping; Util.inherits(Ping, Sequence); function Ping(options, callback) { if (!callback && typeof options === 'function') { callback = options; options = {}; } Sequence.call(this, options, callback); } Ping.prototype.start = function() { this.emit('packet', new Packets.ComPingPacket()); };