The normalization type(s) to use in the decoder.
decoder_act_fns (`Union[str, Tuple[str]]`, defaults to `"silu"`):
The activation function(s) to use in the decoder.
scaling_factor (`float`, defaults to `1.0`):
The multiplicative inverse of the root mean square of the latent features. This is used to scale the latent
space to have unit variance when training the diffusion model. The latents are scaled with the formula `z =