ess),
sample (directly predicts the noisy sample) or v_prediction` (see section 2.4 of Imagen
Video paper).   timestep_spacing (str, defaults to "leading") —
The way the timesteps should be scaled. Refer to Table 2 of the Common Diffusion Noise Schedules and
Sample Steps are Flawed for more information.   rescale_betas_zero_snr (bool, defaults to False) —
Whether to rescale the betas to have zero terminal SNR. This enables the model to generate