src/vs/workbench/contrib/notebook/browser/notebookEditorWidget.ts/NotebookEditorWidget/hideMarkupPreviews
class NotebookEditorWidget:	async hideMarkupPreviews(cells: readonly MarkupCellViewModel[]) {
		if (!this._webview || !cells.length) {
			return;
		}

		if (!this._webview.isResolved()) {
			await this._resolveWebview();
		}

		await this._webview?.hideMarkupPreviews(cells.map(cell => cell.id));
	}