code: def __init__(self, layers=None):
      if layers is None:
          layers = [2, 3, 4, 5, 6]
      super().__init__(structure=[1, 1, 1, 3, 1, 1], layers=layers)
  
imports: from typing import List
  from .common import EncoderModule, _take, make_n_channel_input
  from ..activations import ABN
  from ..backbone.wider_resnet import WiderResNet, WiderResNetA2
label_desc: Use image node_id 1 to create a new WiderResnet20Encoder object from inherited base classes: WiderResnetEncoder with example: obj = WiderResnet20Encoder(layers)