code: def test_setitem(self):
      for idx in range(-len(self.base), len(self.base)):
          self.base[idx] = idx + 1000
          self.assertNotEqual(self.lazy, self.base)
          self.lazy[idx] = idx + 1000
          self.assertEqual(self.lazy, self.base)
  
imports: from operator import eq, ge, gt, le, lt, ne, add, concat, not_, sub, and_, or_, xor
  import os.path
  import sys
  import unittest
  import warnings
  from pytz.lazy import LazyList, LazySet
label_desc: Use image node_id 21 for calling the LazyListTestCase obj's underlying member method code with example usage: obj.test_setitem() without return types