mxGraph.prototype.isCellFoldable=function(a,b){b=this.getCurrentCellStyle(a);return 0<this.model.getChildCount(a)&&0!=b[mxConstants.STYLE_FOLDABLE]};mxGraph.prototype.isValidDropTarget=function(a,b,c){return null!=a&&(this.isSplitEnabled()&&this.isSplitTarget(a,b,c)||!this.model.isEdge(a)&&(this.isSwimlane(a)||0<this.model.getChildCount(a)&&!this.isCellCollapsed(a)))};