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- 'use strict';
- var $ = require('../internals/export');
- var IS_PURE = require('../internals/is-pure');
- var $emplace = require('../internals/map-emplace');
- // `WeakMap.prototype.emplace` method
- // https://github.com/tc39/proposal-upsert
- $({ target: 'WeakMap', proto: true, real: true, forced: IS_PURE }, {
- emplace: $emplace
- });
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