code: def forward(self, z):
      y = self.relu(self.fc1(z))
      y = self.relu(self.fc2(y))
      y = torch.sigmoid(self.fc3(y))
      return y
  
imports: from pathlib import Path
  import numpy
  import torch
  import torch.nn
  from tqdm import tqdm
  import pyro
  import pyro.distributions
  from pyro.infer import SVI, Trace_ELBO
label_desc: Use image node_id 2 for calling the Decoder obj's underlying member method code with example usage: obj.forward(z) and returns: y