title: Use exprotobuf to deal with Google Protocol Buffers
body: <p>Anybody is familiar with <a href="https://github.com/bitwalker/exprotobuf" rel="nofollow noreferrer">exprobuf</a> ? I've got an incorrect encoding result, here is the detail <a href="https://github.com/bitwalker/exprotobuf/issues/75" rel="nofollow noreferrer">issue</a>. </p>