code: def get_colormap(cls):
      return None
  
imports: import json
  import copy
  import os
  import numpy
  import paddle
  from paddleseg.transforms import Compose
  from paddlepanseg.cvlibs import build_info_dict
label_desc: Use image node_id 8 for calling the PanopticDataset obj's underlying member method code with example usage: obj.get_colormap(cls) and returns: None