src/vs/workbench/contrib/notebook/browser/view/cellParts/collapsedCellOutput.ts/CollapsedCellOutput/expand
class CollapsedCellOutput:	private expand() {
		if (!this.currentCell) {
			return;
		}

		if (!this.currentCell) {
			return;
		}

		const textModel = this.notebookEditor.textModel!;
		const index = textModel.cells.indexOf(this.currentCell.model);

		if (index < 0) {
			return;
		}

		this.currentCell.isOutputCollapsed = !this.currentCell.isOutputCollapsed;
	}