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node_modules/core-js/modules/esnext.array.unique-by.js

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+'use strict';
+var $ = require('../internals/export');
+var addToUnscopables = require('../internals/add-to-unscopables');
+var uniqueBy = require('../internals/array-unique-by');
+
+// `Array.prototype.uniqueBy` method
+// https://github.com/tc39/proposal-array-unique
+$({ target: 'Array', proto: true, forced: true }, {
+  uniqueBy: uniqueBy
+});
+
+addToUnscopables('uniqueBy');