ensor, optional):
A tensor that if specified is added to the residual of the middle unet block.   return_dict (bool, optional, defaults to True) —
Whether or not to return a ~models.unet_3d_condition.UNet3DConditionOutput instead of a plain
tuple.   Returns 
~models.unet_3d_condition.UNet3DConditionOutput or tuple
  
If return_dict is True, an ~models.unet_3d_condition.UNet3DConditionOutput is returned, otherwise
a tuple is returned where the f