) —   block_out_channels (tuple[int], defaults to (320, 640, 1280, 1280)) —
The tuple of output channels for each block.   layers_per_block (int, defaults to 2) —
The number of layers per block.   downsample_padding (int, defaults to 1) —
The padding to use for the downsampling convolution.   mid_block_scale_factor (float, defaults to 1) —
The scale factor to use for the mid block.   act_fn (str, defaults to “silu”) —
The activation function to