or
UNetMidBlock2DSimpleCrossAttn. If None, the mid block layer is skipped.   up_block_types (Tuple[str], optional, defaults to ("UpBlock2D", "CrossAttnUpBlock2D", "CrossAttnUpBlock2D", "CrossAttnUpBlock2D")) —
The tuple of upsample blocks to use.   only_cross_attention(bool or Tuple[bool], optional, default to False) —
Whether to include self-attention in the basic transformer blocks, see
BasicTransformerBlock.   block_out_channels (Tuple[int],