'use strict';
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require('../../modules/es.array.iterator');
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require('../../modules/es.string.iterator');
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require('../../modules/es.weak-map');
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require('../../modules/esnext.weak-map.from');
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require('../../modules/web.dom-collections.iterator');
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var isCallable = require('../../internals/is-callable');
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var path = require('../../internals/path');
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var WeakMap = path.WeakMap;
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var weakMapFrom = WeakMap.from;
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module.exports = function from(source, mapFn, thisArg) {
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return weakMapFrom.call(isCallable(this) ? this : WeakMap, source, mapFn, thisArg);
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};
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