dpmsolver: scheduler_class: DPMSolverMultistepScheduler additional_params: algorithm_type: sde-dpmsolver++ use_karras_sigmas: true ddpm: scheduler_class: DDPMScheduler additional_params: variance_type: fixed_small clip_sample: false ddim: scheduler_class: DDIMScheduler additional_params: clip_sample: false deis: scheduler_class: DEISMultistepScheduler additional_params: num_train_timesteps: 1000 pndm: scheduler_class: PNDMScheduler additional_params: num_train_timesteps: 1000