@Override
  public void serialize(@NotNull FileStub stub, @NotNull StubOutputStream dataStream) throws IOException {
    XmlFileHeader header = stub.getHeader();
    dataStream.writeName(header.getRootTagLocalName());
    dataStream.writeName(header.getRootTagNamespace());
    dataStream.writeName(header.getPublicId());
    dataStream.writeName(header.getSystemId());
  }
@Override
  public void serialize(@NotNull FileStub stub, @NotNull StubOutputStream dataStream)