This is a MIDI Device Script, a seemingly undocumented lua file format that is used to automatically map connected USB MIDI devices to certain Logic features. I've worked through a lot of the included files and came up with this one for the MIDI Fighter Twister where I have mapped 8 Smart Controls using the first 8 buttons on the Twister.

Using this it also allows the controller to receive MIDI messages from Logic so I made it so that the dials represent the current Smart Control settings.

There's also some commented out lines for transport controls that I don't use but you could easily enable by removing the leading minus signs.