Sampler/Scheduler clarification about comfyui

[RandomGitUser321]

You won't get 1:1 between comfyui and diffusers, since they handle things slightly differently, but it should just be:
from diffusers import DDPMScheduler

pipe = blahblahblah(
"some/model/here",
torch_dtype=torch.float16,
)

and then assuming you name your pipeline "pipe"
pipe.scheduler = DDPMScheduler.from_config(pipe.scheduler.config, use_karras_sigmas=True)

EDIT: Maybe it works? Not sure, but it worked when I did it with SD3, even though it just spit out ugly noise images, they were different. But I just tried it with an SDXL model and it gave the same image twice, maybe the model I used doesn't have a baked in config file or something? Both were using from_single_file. Anyways, it should at least get you on the right track. I know that use_karras_sigmas=True works with all the major schedulers though like dpm++.