code: def forward(self, x):
      x = self.conv1(x)
      x = self.pointwise(x)
      return x
  
imports: from __future__ import print_function, division, absolute_import
  import math
  import torch
  import torch.nn
  import torch.nn.functional
  import torch.utils.model_zoo
  from torch.nn import init
label_desc: Use image node_id 2 for calling the SeparableConv2d obj's underlying member method code with example usage: obj.forward(x) and returns: x