hunk.code_window:                 <Logo color="#FC4349" />
                   <Logo color="#2C3E50" inline />
                 </SVGSet>
               </a>
               <a href="docs/" target="_self">
                 Docs
               </a>
               <a href="https://stackoverflow.com/questions/tagged/immutable.js?sort=votes">
                 Questions
               </a>
  
hunk.labels: keep keep keep keep keep replace keep keep keep keep
hunk.after_edit:               Docs (v{packageJson.version})
  
hunk.file_path: pages/src/src/Header.js
hunk.type: replace
file: /**
   * Copyright (c) 2014-present, Facebook, Inc.
   *
   * This source code is licensed under the MIT license found in the
   * LICENSE file in the root directory of this source tree.
   *
   * @flow
   */
  
  import { List } from '../../';
  
  declare var mystery: mixed;
  
  // $ExpectError
  maybe.push('3');
  
  if (mystery instanceof List) {
    maybe.push('3');
  }
  
  // Note: Flow's support for %checks is still experimental.
  // Support this in the future.
  // if (List.isList(mystery)) {
  //   mystery.push('3');
  // }
  