code: def setUp(self):
      try:
          import transformers3.models.vit.modeling_vit as vit
      except ImportError:
          import transformers.models.vit.modeling_vit as vit
  
      setup_proxy()
      config = {
          "layer_norm_eps": 0.0001,
          "hidden_size": 768,
          "num_hidden_layers": 2,
          "do_patch_embeddings": False,
          "add_pooling_layer": False,
          "return_dict": True,
      }
      hf_config = vit.ViTConfig(**config)
      self.model = ViTModel(hf_config)
  
file_path: mmf/tests/modules/test_vit.py
imports: import unittest
  import torch
  from mmf.modules.vit import ViTModel
  from omegaconf import OmegaConf
  from tests.test_utils import setup_proxy, skip_if_old_transformers
  from torch import nn
label_desc: Use image node_id 1 for calling the TestViT obj's underlying member method code with example usage: obj.setUp() without return types