src/vs/workbench/api/common/extHostNotebookDocuments.ts/ExtHostNotebookDocuments/$acceptModelChanged
class ExtHostNotebookDocuments:	$acceptModelChanged(uri: UriComponents, event: SerializableObjectWithBuffers<extHostProtocol.NotebookCellsChangedEventDto>, isDirty: boolean, newMetadata?: NotebookDocumentMetadata): void {
		const document = this._notebooksAndEditors.getNotebookDocument(URI.revive(uri));
		const e = document.acceptModelChanged(event.value, isDirty, newMetadata);
		this._onDidChangeNotebookDocument.fire(e);
	}