mxGraphModel.prototype.getParents=function(a){var b=[];if(null!=a)for(var c=new mxDictionary,d=0;d<a.length;d++){var e=this.getParent(a[d]);null==e||c.get(e)||(c.put(e,!0),b.push(e))}return b};mxGraphModel.prototype.cloneCell=function(a,b,c){return null!=a?this.cloneCells([a],b,null,c)[0]:null};