There are a number of Lua scripts installed as part of the Match-IT installation. They are all in the configs folder with either a .lua extension or a .wiz. If you look in a .wiz file make sure it's not an old legacy script, they look very different. If you see the marker #!lua in the first line then it’s a Lua script, otherwise it's probably not.
The sample script ReportSample.wiz is a simple example of using scripts to create a custom report.