edule, a mapping from a beta range to a sequence of betas for stepping the model. Choose from
linear, scaled_linear, or squaredcos_cap_v2.   trained_betas (np.ndarray, optional) —
An array of betas to pass directly to the constructor without using beta_start and beta_end.   variance_type (str, defaults to "fixed_small") —
Clip the variance when adding noise to the denoised sample. Choose from fixed_small, fixed_small_log,
fixed_large, fixed_lar