Batch scripting r.in.lidar in pyQGIS for LiDAR DEM output?

I need to use pyQGIS to write a script that will run the r.in.lidar GRASS 7 on a set of LAS files.

I am terrible at Python, but I need this for my task. I would like to process as a batch. How can I set up my script in the PyQGIS console? And how do I set input in the arguments?