code: def test_isinstance(self):
      self.assertIsInstance(self.lazy, list)
      self.assertNotIsInstance(self.lazy, tuple)
  
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 7 for calling the LazyListTestCase obj's underlying member method code with example usage: obj.test_isinstance() without return types