code: def forward(self, x):
      return self.conv_bn_relu(x)
  
imports: import math
  import torch
  import torch.nn
  from nni.nas.nn.pytorch import ModelSpace
  from .modules.nasbench101 import NasBench101Cell
label_desc: Use image node_id 3 for calling the ConvBNReLU obj's underlying member method code with example usage: obj.forward(x) and returns: self