Function removeChildFromGroup

src/chart/custom/CustomView.ts:1417–1430

(
    group: graphicUtil.Group,
    child: Element,
    seriesModel: SeriesModel
)

}

function removeChildFromGroup(
    group: graphicUtil.Group,
    child: Element,
    seriesModel: SeriesModel
) {
    // Do not support leave elements that are not mentioned in the latest
    // `renderItem` return. Otherwise users may not have a clear and simple
    // concept that how to control all of the elements.
    child && applyLeaveTransition(
        child,
        customInnerStore(group).option,
        seriesModel
    );
}

type DiffGroupContext = {
    api: ExtensionAPI;