/**
  * Constructs a ResourceFieldEntityReference.
  *
  * @param array $field
  *   Contains the field values.
  *
  * @param RequestInterface $request
  *   The request.
  */
 public function __construct(array $field, RequestInterface $request)
 {
     parent::__construct($field, $request);
     if (!empty($field['referencedIdProperty'])) {
         $this->referencedIdProperty = $field['referencedIdProperty'];
     }
     // TODO: Document referencedIdProperty.
 }