{
  "nbformat_valid_v4": true,
  "cells": 3,
  "nbclient_executed_code_cells": 2,
  "nbclient_errors": 0,
  "nbclient_output": "{'rows': 12, 'assets': 66, 'planned_seconds': 450}\nCreator notebook check: 66 fictional assets\n",
  "nbconvert_html_contains_output": true,
  "jupyterlab_boundary": "JupyterLab UI review recorded separately. No shared server or extension compatibility test."
}