 of up block output channels.   layers_per_up_block (int, optional, defaults to 1) —
Number layers for up block.   act_fn (str, optional, defaults to "silu") — The activation function to use.   latent_channels (int, optional, defaults to 4) — Number of channels in the latent space.   sample_size (int, optional, defaults to 32) — Sample input size.   norm_num_groups (int, optional, defaults to 32) —
Number of groups to use for the first normaliz