Parameter poc-type missing on jetson though mentioned in the documentation

The documentation from this link:

Says the following:
1)

Applies to: Jetson Xavier NX, Jetson Nano, Jetson AGX Xavier series, and Jetson TX2 series devices

The following values are supported for the poc-type property:

But when I use the parameter poc-type on my jetson nano:

gst-launch-1.0 -e nvarguscamerasrc ! ‘video/x-raw(memory:NVMM), width=1280, height=720, framerate=60/1’ ! nvv4l2h264enc bitrate=4000000 profile=0 iframeinterval=1 poc-type=2 ! video/x-h264, stream-format=byte-stream, profile=baseline ! filesink location=lol.h264

I get the following error message:

WARNING: erroneous pipeline: no property “poc-type” in element “nvv4l2h264enc0”

E.g a parameter listed in the documentation and of high importance to me is missing in the implementation on my jetson nano. Default firmware.

Hi,
The implementation will be present in next r32.5.