[
  {
    "resourceSizes": [],
    "timings": [
      {
        "metric": "largest-contentful-paint",
        "budget": 2500
      },
      {
        "metric": "max-potential-fid",
        "budget": 100
      },
      {
        "metric": "cumulative-layout-shift",
        "budget": 0.1
      }
    ]
  }
]