tests/union_vector/union_vector.json

{
  "main_character_type": "Rapunzel",
  "main_character": {
    "hair_length": 6
  },
  "characters_type": [
    "Belle",
    "MuLan",
    "BookFan",
    "Other",
    "Unused"
  ],
  "characters": [
    {
      "books_read": 7
    },
    {
      "sword_attack_damage": 5
    },
    {
      "books_read": 2
    },
    "Other",
    "Unused"
  ]
}