code: def forward(self, input):
      return self.resnet(input - self.means)
  
imports: import tempfile
  import torch
  from torch.utils import benchmark
  from torchvision.models import resnet18
  import tvm
  import tvm.testing
  from tvm.contrib.torch import optimize_torch
  from tvm.meta_schedule import TuneConfig
label_desc: Use image node_id 2 for calling the JitModule obj's underlying member method code with example usage: obj.forward(input) and returns: self