mxGraph.prototype.addCells=function(a,b,c,d,e,f){null==b&&(b=this.getDefaultParent());null==c&&(c=this.model.getChildCount(b));this.model.beginUpdate();try{this.cellsAdded(a,b,c,d,e,null!=f?f:!1,!0),this.fireEvent(new mxEventObject(mxEvent.ADD_CELLS,"cells",a,"parent",b,"index",c,"source",d,"target",e))}finally{this.model.endUpdate()}return a};