code: def decoder():
      return nn.Sequential(
          Clamp(),
          conv(4, 64),
          nn.ReLU(),
          Block(64, 64),
          Block(64, 64),
          Block(64, 64),
          nn.Upsample(scale_factor=2),
          conv(64, 64, bias=False),
          Block(64, 64),
          Block(64, 64),
          Block(64, 64),
          nn.Upsample(scale_factor=2),
          conv(64, 64, bias=False),
          Block(64, 64),
          Block(64, 64),
          Block(64, 64),
          nn.Upsample(scale_factor=2),
          conv(64, 64, bias=False),
          Block(64, 64),
          conv(64, 3),
      )
  
imports: import os
  import torch
  import torch.nn
  from modules import devices, paths_internal, shared
label_desc: Use image node_id 2 for calling a global function with example usage: decoder() and returns: nn