var RoundNode = require("../RoundNode");

module.exports = (function (){
  
  var o = function ( graph ){
    RoundNode.apply(this, arguments);
    
    this.attributes(["external"])
      .type("ExternalClass");
  };
  o.prototype = Object.create(RoundNode.prototype);
  o.prototype.constructor = o;
  
  return o;
}());