| 123456789101112131415161718192021 | 'use strict';/** * Return flexbox spec versions by prefix */module.exports = function (prefix) {    var spec = void 0;    if (prefix === '-webkit- 2009' || prefix === '-moz-') {        spec = 2009;    } else if (prefix === '-ms-') {        spec = 2012;    } else if (prefix === '-webkit-') {        spec = 'final';    }    if (prefix === '-webkit- 2009') {        prefix = '-webkit-';    }    return [spec, prefix];};
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