code: function () {
  
  		Point.prototype.init.apply(this, arguments);
  
  		var point = this,
  			toggleSlice;
  
  		//visible: options.visible !== false,
  		extend(point, {
  			visible: point.visible !== false,
  			name: pick(point.name, 'Slice')
  		});
  
  		// add event listener for select
  		toggleSlice = function () {
  			point.slice();
  		};
  		addEvent(point, 'select', toggleSlice);
  		addEvent(point, 'unselect', toggleSlice);
  
  		return point;
  	}
docs: Initiate the pie slice