code: def forward(self, x):
      y1 = self.b1(x)
      y2 = self.b2(x)
      y3 = self.b3(x)
      y4 = self.b4(x)
      return torch.cat([y1, y2, y3, y4], 1)
  
file_path: nni/examples/trials/cifar10_pytorch/models/googlenet.py
imports: import torch
  import torch.nn
  import torch.nn.functional
label_desc: Use image node_id 2 for calling the Inception obj's underlying member method code with example usage: obj.forward(x) and returns: torch