src/vs/workbench/api/browser/mainThreadNotebookDocuments.ts/MainThreadNotebookDocuments/$tryOpenNotebook
class MainThreadNotebookDocuments:	async $tryOpenNotebook(uriComponents: UriComponents): Promise<URI> {
		const uri = URI.revive(uriComponents);
		const ref = await this._notebookEditorModelResolverService.resolve(uri, undefined);
		this._modelReferenceCollection.add(uri, ref);
		return uri;
	}