parent property

String? parent
getter/setter pair

Only for treemap. Use this option to build a tree structure. The value should be the id of the point which is the parent. If no points has a matching id, or this option is undefined, then the parent will be set to the root.

API Docs: https://api.highcharts.com/highcharts/series.treegraph.data.parent

Implementation

String? parent;