code: def forward(self, x):
      x = self.relu_1(x)
      if self.zero_pad:
          x = self.zero_pad(x)
      x = self.separable_1(x)
      if self.zero_pad:
          x = x[:, :, 1:, 1:].contiguous()
      x = self.bn_sep_1(x)
      x = self.relu_2(x)
      x = self.separable_2(x)
      x = self.bn_sep_2(x)
      return x
  
imports: from collections import OrderedDict
  import torch
  import torch.nn
  import torch.utils.model_zoo
label_desc: Use image node_id 2 for calling the BranchSeparables obj's underlying member method code with example usage: obj.forward(x) and returns: x