{
  "$defs": {
    "RefPath": {
      "pattern": "^\\$",
      "type": "string"
    }
  },
  "additionalProperties": false,
  "properties": {
    "field": {
      "$ref": "#/$defs/RefPath"
    },
    "key": {
      "title": "Key",
      "type": "string"
    }
  },
  "required": [
    "field",
    "key"
  ],
  "title": "UniqueItemsParams",
  "type": "object"
}