code: def test_repeat_token(self):
      token = torch.Tensor([[[1, 2, 3, 4]]])
      out = utils.repeat_token(token, size=(2, 3))
      self.assertEqual(tuple(out.shape), (2, 3, 4))
      self.assertListEqual(out[-1][-1].tolist(), [1, 2, 3, 4])
  
imports: import copy
  import unittest
  import torch
  import torch.nn
  from lightly.models import utils
  from lightly.models.utils import _no_grad_trunc_normal, activate_requires_grad, batch_shuffle, batch_unshuffle, deactivate_requires_grad, nearest_neighbors, normalize_weight, update_momentum
label_desc: Use image node_id 8 for calling the TestModelUtils obj's underlying member method code with example usage: obj.test_repeat_token() without return types