Gst-nvaisle plugin

where can I find documentation about this plugin? there is nothing in the dev guide. I Only found info in the https://github.com/NVIDIA-AI-IOT/deepstream_360_d_smart_parking_application PDF, but nothing related with implementation.

• DeepStream Version
Deepstream 5-0 Devel

https://github.com/NVIDIA-AI-IOT/deepstream_360_d_smart_parking_application/blob/master/DeepStream_Analytics_Applications.pdf
3.7 for gst-nvaisle plugin