norm_num_groups groups.   norm_eps (float, optional, defaults to 1e-5) — The epsilon for normalization.   resnet_time_scale_shift (str, optional, defaults to "default") — Time scale shift config
for ResNet blocks (see ResnetBlock2D). Choose from default or scale_shift.   class_embed_type (str, optional, defaults to None) —
The type of class embedding to use which is ultimately summed with the time embeddings. Choose from None,
"timestep", or "i