export default { encodeBase64: function encodeBase64(str) { // Avoid Buffer constructor on newer versions of Node.js. const buffer = (Buffer.from ? Buffer.from(str) : (new Buffer(str))); return buffer.toString('base64'); }, mimeLookup: function (filename) { return require('mime').lookup(filename); }, charsetLookup: function (mime) { return require('mime').charsets.lookup(mime); }, getSourceMapGenerator: function getSourceMapGenerator() { return require('source-map').SourceMapGenerator; } };