@rubenvanassche has this been abandoned? Do you think I can PR back something that fixes #23 in v2?

I am still using this writer in all my projects to this day 🥲

final class OptionalPropertiesTypeDefinitionWriter extends TypeDefinitionWriter
{
    public function format(TypesCollection $collection): string
    {
        return str(parent::format($collection))
            ->replaceMatches('/(\w+)\??: ([\w\. |<>]+) \| null;/', function ($matches) {
                return \sprintf('%s?: %s', $matches[1], $matches[2]);
            })
            ->toString();
    }
}

Not abandonned, just a lot of other things I'm working on internally which makes it complicated to work on this. As for your PR, @sebastiandedeyne will take a look at what such changes would mean for our projects and if it would be useful.

Thanks for the answer @rubenvanassche!

Thank you for your huge efforts!
Is there any way one can assist you with coding or testing?

Dear contributor,

because this pull request seems to be inactive for quite some time now, I've automatically closed it. If you feel this pull request deserves some attention from my human colleagues feel free to reopen it.