What is the license in case I want to use only the image-scaling "engine", and how do I do it?

[AndroidDeveloperLB]

Hello,

I've searched for a nice library that uses neural-network to enhance/enlarge images of low resolution for quite some time, to be able to use it on an Android app. I've only found one of Google, but it was very restricted and was more of a POC than a library: https://ai.googleblog.com/2021/07/high-fidelity-image-generation-using.html?m=1 https://youtu.be/WCAF3PNEc_c https://github.com/Janspiry/Image-Super-Resolution-via-Iterative-Refinement

Is it ok that I use what's available here to do it? What is the license of just using the "engine" that does it? Is it ok that I make a closed sourced app that uses it without any issue? I don't intend to change the code of the original "engine" except for maybe if I'm forced to, to adjust it to make it work, if that's an issue. And, how can I do it? Which files/folders should I check out?