@Override
  public void serialize(@NotNull GrNameValuePairStub stub, @NotNull StubOutputStream dataStream) throws IOException {
    dataStream.writeName(stub.getName());
    String value = stub.getValue();
    boolean hasValue = value != null;
    dataStream.writeBoolean(hasValue);
    if (hasValue) {
      dataStream.writeUTFFast(value);
    }
  }
@Override
  public void serialize(@NotNull GrNameValuePairStub stub, @NotNull StubOutputStream dataStream)