src/vs/editor/contrib/zoneWidget/browser/zoneWidget.ts/ZoneWidget/show
class ZoneWidget:	show(rangeOrPos: IRange | IPosition, heightInLines: number): void {
		const range = Range.isIRange(rangeOrPos) ? Range.lift(rangeOrPos) : Range.fromPositions(rangeOrPos);
		this._isShowing = true;
		this._showImpl(range, heightInLines);
		this._isShowing = false;
		this._positionMarkerId = this.editor.deltaDecorations(this._positionMarkerId, [{ range, options: ModelDecorationOptions.EMPTY }]);
	}