Time not being generated from proto

[rojikada]

When a protofile contains google timestamp, it does not generate IN/OUT values for the protocol. Is this supposed to happen? I manually edited the files, so it works (just by sending the time as datetime), however it does not seem to work correctly by default.

service TestService {
  rpc Test (TestMSG) returns (stream TestMSG);
}

message TestMSG {
    google.protobuf.Timestamp time = 1;
}