How to build .network file?

Hello everyone, Can you tell me how to build .network file for OpenMV, I can’t find any tutorial from internet and i don’t know how to do that.
i want to create some model on Tensorflow-lite, convert it into .network model and download to Openmv sd card.
Thanks you for your answer

Hi, the tutorial for making one is here: https://github.com/openmv/openmv/tree/master/ml/cmsisnn