text: 'use strict';
  var $ = require('../internals/export');
  var addAll = require('../internals/collection-add-all');
  
  // `WeakSet.prototype.addAll` method
  // https://github.com/tc39/proposal-collection-methods
  $({ target: 'WeakSet', proto: true, real: true, forced: true }, {
    addAll: addAll
  });
  