title: Convert Google ProtocolBuffer.ProtocolMessage to JSON in Python
body: <p>I am attempting to convert a google.net.proto.ProtocolBuffer.ProtocolMessage (which is protobuf v1) <a href="https://github.com/AppScale/gae_sdk/blob/master/google/appengine/ext/remote_api/remote_api_pb.py" rel="nofollow">implemented in this class</a> to a JSON string.  I have tried several utilities that claim to be able to convert protocol buffers, but all of them appear to be exclusive to protobuf v2.</p>
  
  <p>Does anyone have insight into how a v1 protobuf object could be converted to JSON?</p>
  
  <p>Thanks!</p>