code: def test_std_of_l2_normalized_raises(self):
      z = torch.zeros(BATCH_SIZE)
      with self.assertRaises(ValueError):
          debug.std_of_l2_normalized(z)
      z = torch.zeros(BATCH_SIZE, BATCH_SIZE, DIMENSION)
      with self.assertRaises(ValueError):
          debug.std_of_l2_normalized(z)
  
file_path: lightly/tests/utils/test_debug.py
imports: import math
  import unittest
  import numpy
  import torch
  from PIL import Image
  from lightly.data import collate
  from lightly.utils import debug
label_desc: Use image node_id 4 for calling the TestDebug obj's underlying member method code with example usage: obj.test_std_of_l2_normalized_raises() without return types