ps usually lead to a higher quality image at
the expense of slower inference. For more specific timestep spacing, you can pass customized
timesteps   prior_timesteps (List[float], optional) —
Custom timesteps to use for the denoising process for the prior. If not defined, equal spaced
prior_num_inference_steps timesteps are used. Must be in descending order.   decoder_timesteps (List[float], optional) —
Custom timesteps to use for the denoising