src/vs/base/browser/ui/tree/objectTree.ts/CompressibleObjectTree/setChildren
class CompressibleObjectTree:	override setChildren(element: T | null, children: Iterable<ICompressedTreeElement<T>> = Iterable.empty(), options?: IObjectTreeSetChildrenOptions<T>): void {
		this.model.setChildren(element, children, options);
	}