code: def test_method_ops(self):
      ops = [
          "difference",
          "intersection",
          "isdisjoint",
          "issubset",
          "issuperset",
          "symmetric_difference",
          "union",
          "difference_update",
          "intersection_update",
          "symmetric_difference_update",
          "update",
      ]
      for op in ops:
          if not hasattr(set, op):
              continue  # Not in this version of Python.
          # Make a copy, as some of the ops are mutating.
          lazy = LazySet(set(self.base))
          base = set(self.base)
          self.assertEqual(
              getattr(lazy, op)(set([1])),
              getattr(base, op)(set([1])),
              op,
          )
          self.assertEqual(lazy, base, op)
  
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 11 for calling the LazySetTestCase obj's underlying member method code with example usage: obj.test_method_ops() without return types