Rock 5B How to install rknn python library?

I’m looking to run one of my effnet models on the RK3588 NPU from python on Diet Pi. I have already located the usage instructions for converting the model and using it in python but nothing about actually obtaining the python library.

I’ve looked through these repos and only found a python reference to rknn in the example python scripts in rknn-toolkit2. Looking through pypi, I don’t see an rknn package nor a way to build a python wheel for the library. Is this only available in the official Radxa Ubuntu image?

rknpu2 has references to C

rknn_toolkit_lite2, go to the english document