code: def testCmp(self):
      for obj in self.objects:
          for binop in ("lt", "le", "gt", "ge"):
              binop = getattr(operator, binop)
              with self.assertRaises(TypeError):
                  binop(obj, obj)
  
imports: from mpi4py import MPI
  import mpiunittest
  import ctypes
  import operator
  import weakref
  import sys
label_desc: Use image node_id 3 for calling the TestObjModel obj's underlying member method code with example usage: obj.testCmp() without return types