How to use /etc/enctune.conf

I am configuring the encoder by adding parameters directly on gst-launch-1.0 pipeline.

Besides we see that many mentioned enctune.conf, so how to use the settings in enctune.conf in gst-launch-1.0 pipeline?

Please check [Supported H.264/H.265 Encoder Features with Gstreamer-1.0] in
https://developer.nvidia.com/embedded/dlc/l4t-accelerated-gstreamer-guide-28-2-ga