nt, optional, defaults to 4) — The number of channels in the output.   down_block_types (Tuple[str], optional, defaults to ("CrossAttnDownBlock3D", "CrossAttnDownBlock3D", "CrossAttnDownBlock3D", "DownBlock3D")) —
The tuple of downsample blocks to use.   up_block_types (Tuple[str], optional, defaults to ("UpBlock3D", "CrossAttnUpBlock3D", "CrossAttnUpBlock3D", "CrossAttnUpBlock3D")) —
The tuple of upsample blocks to use.   block_out_channels (T