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'use strict';
module.exports = function () {
var arr = [1, 'foo'], iterator, result;
if (typeof arr.keys !== 'function') return false;
iterator = arr.keys();
if (!iterator) return false;
if (typeof iterator.next !== 'function') return false;
result = iterator.next();
if (!result) return false;
if (result.value !== 0) return false;
if (result.done !== false) return false;
return true;
};
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