code: def features(self, x):
      x = self.layer0(x)
      x = self.layer1(x)
      x = self.layer2(x)
      x = self.layer3(x)
      x = self.layer4(x)
      return x
  
imports: from __future__ import print_function, division, absolute_import
  from collections import OrderedDict
  import math
  import torch.nn
  from torch.utils import model_zoo
label_desc: Use image node_id 3 for calling the SENet obj's underlying member method code with example usage: obj.features(x) and returns: x