code: def __init__(self, height: int, in_ch: int, mid_ch: int, out_ch: int):
      super().__init__()
  
      assert height >= 2
      self.conv_in = ConvBNReLU(in_ch, out_ch)
  
      encode_list = [DownConvBNReLU(out_ch, mid_ch, flag=False)]
      decode_list = [UpConvBNReLU(mid_ch * 2, mid_ch, flag=False)]
      for i in range(height - 2):
          encode_list.append(DownConvBNReLU(mid_ch, mid_ch))
          decode_list.append(
              UpConvBNReLU(
                  mid_ch * 2, mid_ch if i < height - 3 else out_ch
              )
          )
  
      encode_list.append(ConvBNReLU(mid_ch, mid_ch, dilation=2))
      self.encode_modules = nn.ModuleList(encode_list)
      self.decode_modules = nn.ModuleList(decode_list)
  
imports: from typing import Union, List
  import torch
  import torch.nn
  import torch.nn.functional
label_desc: Use image node_id 1 to create a new RSU object from inherited base classes: nn with example: obj = RSU(height, in_ch, mid_ch, out_ch)