Weights file for latent upscaler

[strangehelix]

There is single upscaler provided in the code: latent_upscaler.py.
It can be used in image generation script here https://github.com/bmaltais/kohya_ss/blob/master/gen_img_diffusers.py#L3415-L3451
But it requires path to weights and weights file is not provided. I tried weights from a standard latent upscaler but it doesn't work as the state_dict schema is different.

Where do I get the weights file that will work with Kohya implementation of latent upscaler?