src/vs/workbench/contrib/notebook/browser/view/renderers/codeCell.ts/CodeCell/viewUpdateOutputCollapsed
class CodeCell:	private viewUpdateOutputCollapsed(): void {
		DOM.show(this.templateData.cellContainer);
		DOM.show(this.templateData.runButtonContainer);
		DOM.show(this.templateData.collapsedPart);
		DOM.hide(this.templateData.outputContainer);

		this._outputContainerRenderer.viewUpdateHideOuputs();

		this.templateData.container.classList.toggle('collapsed', false);
		this.templateData.container.classList.toggle('output-collapsed', true);

		this.relayoutCell();
	}