code: func unmarshalFinishedInvs(raw []byte) ([]*internal.FinishedInvocation, error) {
  	if len(raw) == 0 {
  		return nil, nil
  	}
  	invs := internal.FinishedInvocationList{}
  	if err := proto.Unmarshal(raw, &invs); err != nil {
  		return nil, err
  	}
  	return invs.Invocations, nil
  }
docs: // unmarshalFinishedInvs unmarshals FinishedInvocationList proto message.