docstr: Return last computed sparsity level by current scheduler.
          
docstr_tok: ["Return","last","computed","sparsity","level","by","current","scheduler","."]
code: def get_last_sl(self):
      """Return last computed sparsity level by current scheduler."""
      return self._last_sl
  
file_path: pytorch/torch/ao/pruning/scheduler/base_scheduler.py
imports: from torch.ao.pruning import BaseSparsifier
  from functools import wraps
  import warnings
  import weakref
label_desc: Use image node_id 4 for calling the BaseScheduler obj's underlying member method code with example usage: obj.get_last_sl() and returns: self