y are passed to the rest of
the UNet. Choose from silu, mish, gelu, and swish.
timestep_post_act (str, optional, defaults to None):
The second activation function to use in timestep embedding. Choose from silu, mish and gelu.
time_cond_proj_dim (int, optional, defaults to None):
The dimension of cond_proj layer in the timestep embedding.
conv_in_kernel (int, optional, default to 3): The kernel size of conv_in layer. conv_out_kernel (int,
option