text: /**
   * Copyright (c) 2015-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.
   */
  
  /**
   * Given an array of libraries already imported and packageName that will be
   * added, returns true or false depending on whether the library is already linked
   * or not
   */
  module.exports = function hasLibraryImported(libraries, packageName) {
    return libraries.children
      .filter(library => library.comment === packageName)
      .length > 0;
  };
  