 from positional or fourier.


time_embedding_dim (int, optional, default to None) —
An optional override for the dimension of the projected time embedding.


time_embedding_act_fn (str, optional, default to None) —
Optional activation function to use on the time embeddings only one time before they as passed to the rest
of the unet. Choose from silu, mish, gelu, and swish.


timestep_post_act (str, *optional*, default to None) -- The second ac