code: def test_iter_windows_with_copy(self):
      texts = [
          np.array(["this", "is", "a"], dtype="object"),
          np.array(["test", "document"], dtype="object"),
      ]
      windows = list(utils.iter_windows(texts, 2, copy=True))
  
      windows[0][0] = "modified"
      self.assertEqual("this", texts[0][0])
  
      windows[2][0] = "modified"
      self.assertEqual("test", texts[1][0])
  
imports: import logging
  import unittest
  import numpy
  from gensim import utils
  from gensim.test.utils import datapath, get_tmpfile
label_desc: Use image node_id 9 for calling the TestWindowing obj's underlying member method code with example usage: obj.test_iter_windows_with_copy() without return types