src/vs/workbench/contrib/notebook/browser/notebookServiceImpl.ts/NotebookOutputRendererInfoStore/add
class NotebookOutputRendererInfoStore:	add(info: NotebookOutputRendererInfo): void {
		if (this.contributedRenderers.has(info.id)) {
			return;
		}
		this.contributedRenderers.set(info.id, info);
	}