使用下面的代码，我可以通过一个键Map一个字典列表

import json

values_list = [{"id" : 1, "user":"Rick", "title":"More JQ"}, {"id" : 2, "user":"Steve", "title":"Beyond"}, {"id" : 1, "user":"Rick", "title":"Winning"}]
result      = {}

for data in values_list:
  id    = data['id']
  user  = data['user']
  title = data['title']
  if id not in result:
    result[id] = {
    'id' : id,
    'user' : user,
    'books' : {'titles' : []}
    }
  result[id]['books']['titles'].append(title)

print(json.dumps((list(result.values())), indent=4))

了解Jolt Spec有多干净，并尝试将模式分离到代码之外。有没有一种方法可以使用Jolt Spec来实现相同的结果？
结果

[
  {
    "id": 1,
    "user": "Rick",
    "books": {
      "titles": [
        "More JQ",
        "Winning"
      ]
    }
  },
  {
    "id": 2,
    "user": "Steve",
    "books": {
      "titles": [
        "Beyond"
      ]
    }
  }
]