code: def forward(self, x):
      return self.net(x)
  
imports: import copy
  import torch
  import torch.nn
  import torch.nn.functional
  import torchvision.models
  from domainbed.lib import wide_resnet
label_desc: Use image node_id 3 for calling the WholeFish obj's underlying member method code with example usage: obj.forward(x) and returns: self