chromium/tools/json_schema_compiler/test/objects_movable_json.json

[
  {
    "namespace": "objectsMovableJson",
    "description": "Movable objects in a json file",
    "compiler_options": {"use_movable_types": true},
    "types": [{
      "id": "movableWithAdditional",
      "type": "object",
      "properties": {
        "str": {"type": "string"}
      },
      "additionalProperties": {
        "type": "array",
        "items": {"type": "string"}
      }
    }]
  }
]