'use strict'; 
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var $ = require('../internals/export'); 
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var DESCRIPTORS = require('../internals/descriptors'); 
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var FORCED = require('../internals/object-prototype-accessors-forced'); 
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var aCallable = require('../internals/a-callable'); 
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var toObject = require('../internals/to-object'); 
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var definePropertyModule = require('../internals/object-define-property'); 
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// `Object.prototype.__defineSetter__` method 
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// https://tc39.es/ecma262/#sec-object.prototype.__defineSetter__ 
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if (DESCRIPTORS) { 
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  $({ target: 'Object', proto: true, forced: FORCED }, { 
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    __defineSetter__: function __defineSetter__(P, setter) { 
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      definePropertyModule.f(toObject(this), P, { set: aCallable(setter), enumerable: true, configurable: true }); 
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    } 
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  }); 
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} 
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