filename: function (req, file, cb) {
     crypto.pseudoRandomBytes(16, function (err, raw) {
         if (err) {
             return cb(err);
         }
         cb(null, raw.toString('hex') + path.extname(file.originalname));
     });
 }

 constructor(node?: Buffer) {
     if (node && node.length >= 6)
         this.node = node.slice(0,6);
     else
         this.node = crypto.pseudoRandomBytes(6);
     this.lastTimestamp = 0;
     this.counter = 0;
     this.counterBegin = MAX_ID_PER_MILLISECONDS - 1;
 }

test('simple', () => {
  const schema = buffer(100);

  const data = pseudoRandomBytes(schema.byteLength);

  const encode = createEncoder(schema);
  const encoded = encode(data);

  expect(data.equals(encoded)).toBe(true);
});

 registerGenerator(context, 'genrandom.generateRandomChars', () => woop(crypto.pseudoRandomBytes(32), randomChars));