code: def STDC2(**kwargs):
      model = STDCNet(base=64, layers=[4, 5, 3], **kwargs)
      return model
  
imports: from typing import Union, List, Tuple
  import math
  import paddle
  import paddle.nn
  import stdc1_seg_cityscapes.layers
label_desc: Use image node_id 1 for calling a global function with example usage: STDC2() and returns: model