code: def test_replace_unicode(self):
      assert_array_equal(
          np.strings.replace("...\u043c......<", "<", "&lt;", MAX),
          "...\u043c......&lt;",
      )
  
imports: import pytest
  import operator
  import numpy
  from numpy.testing import assert_array_equal, assert_raises
label_desc: Use image node_id 5 for calling the TestUnicodeOnlyMethods obj's underlying member method code with example usage: obj.test_replace_unicode() without return types