如何为数组中的嵌套数组中的多个对象生成持续索引

Given

鉴于

[{
  "objects": [{
    "key": "value"
  },{
    "key": "value"
  }]
}, {
  "objects": [{
    "key": "value"
  }, {
    "key": "value"
  }]
}]
[{
  "objects": [{
    "key": "val