importance scores (of same shape as "t") used to compute
           mask for pruning "t". The values in this tensor indicate
           the importance of the corresponding elements in the "t"
           that is being pruned. If unspecified or None, the tensor
           "t" will be used in its place.
     * **default_mask** (*torch.Tensor**, **optional*) -- mask
       from previous pruning iteration, if any. To be considered
       when determining what portion of the tensor that pruning
       should act on. If None, default to a mask of ones.

  Returns:
     pruned version of tensor "t".

remove(module)
  Removes the pruning reparameterization from a module. The pruned
  parameter named "name" remains permanently pruned, and the
  parameter named "name+'_orig'" is removed from the parameter
  list. Similarly, the buffer named "name+'_mask'" is removed from
  the buffers.

  Note:

    Pruning itself is NOT undone or reversed!
