src/vs/workbench/contrib/notebook/browser/diff/notebookTextDiffEditor.ts/NotebookTextDiffEditor/scheduleOutputHeightAck
class NotebookTextDiffEditor:	scheduleOutputHeightAck(cellInfo: IDiffCellInfo, outputId: string, height: number) {
		const diffElement = cellInfo.diffElement;
		// const activeWebview = diffSide === DiffSide.Modified ? this._modifiedWebview : this._originalWebview;
		let diffSide = DiffSide.Original;

		if (diffElement instanceof SideBySideDiffElementViewModel) {
			const info = CellUri.parse(cellInfo.cellUri);
			if (!info) {
				return;
			}

			diffSide = info.notebook.toString() === this._model?.original.resource.toString() ? DiffSide.Original : DiffSide.Modified;
		} else {
			diffSide = diffElement.type === 'insert' ? DiffSide.Modified : DiffSide.Original;
		}

		const webview = diffSide === DiffSide.Modified ? this._modifiedWebview : this._originalWebview;

		DOM.scheduleAtNextAnimationFrame(() => {
			webview?.ackHeight([{ cellId: cellInfo.cellId, outputId, height }]);
		}, 10);
	}