The comments from the Video Say you can follow the project or contact the Author on Telegram::
This is a demonstration of an Auto B4A Library wrapper from Java. This can wrap almost 80% of codes from github. You can follow the development of this marvelous tool or contact the Developer on his Telegram channel https://t.me/LCoders
Don't waste your time on such "automatic converters". If the library is simple enough to be converted like this then it will be even easier to access it with JavaObject.
The converter will not help with any non-trivial library.