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node_modules/core-js/internals/create-property.js

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+'use strict';
+var toPropertyKey = require('../internals/to-property-key');
+var definePropertyModule = require('../internals/object-define-property');
+var createPropertyDescriptor = require('../internals/create-property-descriptor');
+
+module.exports = function (object, key, value) {
+  var propertyKey = toPropertyKey(key);
+  if (propertyKey in object) definePropertyModule.f(object, propertyKey, createPropertyDescriptor(0, value));
+  else object[propertyKey] = value;
+};