chromium/third_party/blink/renderer/core/view_transition/view_transition_type_set.idl

// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
[Exposed=Window, RuntimeEnabled=ViewTransitionTypes]
interface ViewTransitionTypeSet {
  setlike<DOMString>;
  [RaisesException] void add(DOMString key);
};