For developers only.
This is a super-sharp new API for building custom dynamic path-finders. It is very new, but it works greatly to my satisfaction. Feel free to use, study, or modify it.
I have not documented the functions yet, but I do attempt to use semantic programming for more readable code. I will release documentation soon.
Used internally for my FluidsRealism plugin:
https://www.spigotmc.org/resources/fluidsrealism.98678/