rocket.chat.mqtt/node_modules/msgpack-lite/lib/decode.js

It's a MQTT Server, using redis to scale horizontally.

// decode.js

exports.decode = decode;

var DecodeBuffer = require("./decode-buffer").DecodeBuffer;

function decode(input, options) {
  var decoder = new DecodeBuffer(options);
  decoder.write(input);
  return decoder.read();
}