code: def get_class_weight(self):
      return None
  
imports: from collections import defaultdict
  from typing import List, Mapping
  import numpy
  import pandas
  from lightgbm.basic import Booster
  from dtreeviz.models.shadow_decision_tree import ShadowDecTree, VisualisationNotYetSupportedError
  from dtreeviz import utils
label_desc: Use image node_id 10 for calling the ShadowLightGBMTree obj's underlying member method code with example usage: obj.get_class_weight() and returns: None