# UserPreferenceHistoryChangeDto

Source: https://frameleaf.app/docs/api/schema/UserPreferenceHistoryChangeDto/

```json
{
  "properties": {
    "after": {
      "description": "The value after, JSON encoded; null when protected",
      "nullable": true,
      "type": "string"
    },
    "before": {
      "description": "The value before, JSON encoded; null when protected",
      "nullable": true,
      "type": "string"
    },
    "path": {
      "description": "The changed preference, as a dotted path such as memories.enabled",
      "type": "string"
    },
    "protected": {
      "description": "Changed, but its values are not recorded (Locked content)",
      "type": "boolean"
    }
  },
  "required": [
    "after",
    "before",
    "path"
  ],
  "type": "object"
}
```