Missing Documentation on Starting Inference Engine

[IOExceptionOI]

Description:

When running the project with the command:

lein run resources/examples/simple.foppl

The program starts successfully, compiling the source files and binding to port 5555. However, it gets stuck at:

Listening on tcp://*:5555
Waiting for handshake from inference engine.

It seems that the project is waiting for an inference engine to connect via the PPX protocol, but there is no clear documentation on how to start or connect an inference engine to the FOPPL program.

Please provide guidance or documentation on how to proceed. Thank you!