Where is the stable diffusion model?

I am a little lost and would appreciate some directions.

Usually when I am interested in a model I look for a ckpt or safetensors file and download it. But I found a model on huggingface where there are no such files, just a model_index.json in the root and folders like feature_extractor, safety_checker, scheduler or unet (with a big bin file).

What am I to do with that?

Thanks in advance