public override async Task WriteAsync(ISyntaxWriter writer, CancellationToken cancellationToken)
{
if (writer == null)
{
throw new ArgumentNullException(nameof(writer));
}
await writer.WriteCommentAsync($"PDF-{MajorVersion}.{MinorVersion}", cancellationToken);
if (DocumentType == DocumentType.Binary)
{
await writer.WriteCommentAsync(BinaryMarker, cancellationToken);
}
}