Is there any documentation for the Passolo 2018 SDK?

I found that there is extensive documentation for the SDL Trados Studio 2019 APIs, but I can'to find anything but a small readme in the Passolo 2018 SDK. Is there any documentation similar to the Trados Studio API available for the Passolo SDK? My company would like to know what features are available with the SDK (besides the ability to write a custom importer/exporter as shown in the example projects).