question about let

Hi,
Why exclude down_proj when executing a let? like `model.mlp.down_proj.temp_weight = model.mlp.down_proj.weight`.
I think the down_proj can be smoothed with up_proj, like `smooth_fc_fc_temporary(model.mlp.up_proj,model.mlp.down_proj,
                                model.down_smooth_scale, model.down_smooth_shift)`
Am I right?

