code: def forward(self, x):
      if self.process is None:
          return x
      return self.process(x)
  
imports: import torch
  import torch.nn
  import torch.nn.functional
  from nni.nas.pytorch import mutables
  from ops import FactorizedReduce, StdConv, SepConvBN, Pool
label_desc: Use image node_id 2 for calling the Calibration obj's underlying member method code with example usage: obj.forward(x) and returns: self, x