_block_types (Tuple[str], optional, defaults to ("UpBlock2D", "CrossAttnUpBlock2D", "CrossAttnUpBlock2D", "CrossAttnUpBlock2D",)) —
The tuple of upsample blocks to use. The corresponding class names will be: “FlaxUpBlock2D”,
“FlaxCrossAttnUpBlock2D”, “FlaxCrossAttnUpBlock2D”, “FlaxCrossAttnUpBlock2D”


block_out_channels (Tuple[int], optional, defaults to (320, 640, 1280, 1280)) —
The tuple of output channels for each block.


layers_per_block 