| sgm_uniform              | init with `timestep_spacing="trailing"`                                    |
| simple                   | init with `timestep_spacing="trailing"`                                    |
| exponential              | init with `timestep_spacing="linspace"`, `use_exponential_sigmas=True`     |
| beta                     | init with `timestep_spacing="linspace"`, `use_beta_sigmas=True`            |