{
  "top1": {
    "key1": "scalar1"
  },
  "top2": {
    "key2": "scalar2"
  },
  "top3": {
    "scalar1": "scalar3"
  },
  "top4": {
    "scalar2": "scalar4"
  },
  "top5": "scalar5",
  "top6": {
    "key6": "scalar6"
  }
}