code: def forward(self, x):
      x = self.layer0(x)
      x = self.layer1(x)
      return x
  
imports: from torch.nn import init
  import sys
  import torch
  import torch
  import torchvision
  from torch import nn
  from datetime import datetime
  from fate.ml.nn.model_zoo.agg_layer.fedpass._passport_block import ConvPassportBlock
  from fate.ml.nn.model_zoo.hetero_nn_model import HeteroNNModelGuest, HeteroNNModelHost
  from fate.ml.nn.hetero.hetero_nn import HeteroNNTrainerGuest, HeteroNNTrainerHost, TrainingArguments, FedPassArgument
label_desc: Use image node_id 2 for calling the LeNetBottom_ obj's underlying member method code with example usage: obj.forward(x) and returns: x