code: def _set_apply_method(self):
      for _, ts in self._target_spaces.items():
          for _, target_space in ts.items():
              if target_space.apply_method == "mul":
                  target_space.apply_method = "slim_mul"
              else:
                  assert target_space.apply_method == "slim_mul"
  
imports: from __future__ import annotations
  from collections import defaultdict
  import logging
  from typing import Dict, List, Literal, Tuple, overload
  import torch
  from torch.optim import Adam
  from .tools import _METRICS, _MASKS, generate_sparsity, is_active_target
  from ..base.compressor import Compressor, Pruner
  from ..base.target_space import TargetType
  from ..base.wrapper import ModuleWrapper
  from ..utils import Evaluator, _EVALUATOR_DOCSTRING
label_desc: Use image node_id 5 for calling the SlimPruner obj's underlying member method code with example usage: obj._set_apply_method() without return types