s quite time consuming even for normal size images. The VQ-Diffusion allows us to achieve a better trade-off between quality and speed. Our experiments indicate that the VQ-Diffusion model with the reparameterization is fifteen times faster than traditional AR methods while achieving a better image quality.  VQDiffusionScheduler  class diffusers.VQDiffusionScheduler  < source > ( num_vec_classes: int num_train_timesteps: int = 100 alpha_cum_sta