code: def eval(self):
      for model in self.model_list:
          model.eval()
      torch.set_grad_enabled(False)
  
imports: from collections import OrderedDict
  import os
  import numpy
  import torch
  from torch import nn
  from gluoncv.torch.utils.coot_utils import truncated_normal_fill
label_desc: Use image node_id 4 for calling the MultiModalTransformer obj's underlying member method code with example usage: obj.eval() without return types