code: def forward(self, x, label):
      encoded = self.gEncoder(x).permute(0, 2, 1)
      cpc_feature = self.gAR(encoded)
      return cpc_feature, encoded, label
  
imports: import soundfile
  import torch
  import torch.nn
  import torch.nn.functional
label_desc: Use image node_id 2 for calling the CPCModel obj's underlying member method code with example usage: obj.forward(x, label) and returns: cpc_feature,  encoded,  label