mxGraphModel.prototype.geometryForCellChanged=function(a,b){var c=this.getGeometry(a);a.setGeometry(b);return c};mxGraphModel.prototype.getStyle=function(a){return null!=a?a.getStyle():null};mxGraphModel.prototype.setStyle=function(a,b){b!=this.getStyle(a)&&this.execute(new mxStyleChange(this,a,b));return b};mxGraphModel.prototype.styleForCellChanged=function(a,b){var c=this.getStyle(a);a.setStyle(b);return c};mxGraphModel.prototype.isCollapsed=function(a){return null!=a?a.isCollapsed():!1};