d ControlNet weights stored in a single file, which can either be a ckpt or safetensors file. To learn more about how to load single file weights, see the Load different Stable Diffusion formats loading guide.  FromSingleFileMixin  class diffusers.loaders.FromSingleFileMixin  < source > ( )    Load model weights saved in the .ckpt format into a DiffusionPipeline.  from_single_file  < source > ( pretrained_model_link_or_path **kwargs  )   Parame