This package includes code adapted from The Polymer Project.

Affected file:
- src/index.js

Original licensing notice:

  Copyright (c) 2020 The Polymer Project Authors. All rights reserved.
  This code may only be used under the BSD style license found at
  http://polymer.github.io/LICENSE.txt
  The complete set of authors may be found at
  http://polymer.github.io/AUTHORS.txt
  The complete set of contributors may be found at
  http://polymer.github.io/CONTRIBUTORS.txt
  Code distributed by Google as part of the polymer project is also
  subject to an additional IP rights grant found at
  http://polymer.github.io/PATENTS.txt
