code: def forward(self, x):
      x = x * self.param
      x = F.relu(self.conv1(x))
      x = self.bn1(x)
      return x
  
imports: import unittest
  import torch
  import torch.nn
  import torch.nn.functional
  import torch.optim
  from apex import amp
  from utils import common_init, FLOAT
label_desc: Use image node_id 2 for calling the MyModel obj's underlying member method code with example usage: obj.forward(x) and returns: x